Mike Kearney

Building Code

Home
Council Agendas and Minutes
Clinton City Ordinances
Clinton and Lyons Downtown Assessments
An Architectural Heritage
Multiple Property Inventory
Newspaper Articles
Latest News
Links
Family and Friends
Probate Records
Financial Issues
Building Code
Historic Preservation

Dubuque Historic Building Code Chapter 5

Chapter 5
HISTORIC BUILDINGS
linklink

http://sterlingcodifiers.com/codebook/index.php?book_id=803&chapter_id=54876

14-5-1: PURPOSE, SCOPE AND APPLICATION:

14-5-2: ADMINISTRATION AND ENFORCEMENT:

14-5-3: DEFINITIONS:

14-5-4: BUILDING EVALUATION METHOD:

14-5-5: MISCELLANEOUS BUILDING REQUIREMENTS:

14-5-6: ALTERNATE STRUCTURAL REQUIREMENTS:

14-5-7: ALTERNATE ACCESSIBILITY REQUIREMENTS:

14-5-8: ALTERNATE MECHANICAL REQUIREMENTS:

14-5-9: ALTERNATE ELECTRICAL REQUIREMENTS:

14-5-10: TOTALLY PRESERVED BUILDINGS USED AS HISTORICAL EXHIBITS:

14-5-1: PURPOSE, SCOPE AND APPLICATION:linklink

 

A. Authority: This chapter constitutes the historic building code.

 

B. Purpose: The purpose of this chapter is to:

1. Provide alternative building standards for preserving or restoring buildings or structures designated as historic buildings;

2. Facilitate the restoration of historic buildings so as to preserve their original or restored architectural elements and features;

3. Permit a cost effective approach to historic preservation and restoration;

4. Provide for the health, safety and welfare of occupants and visitors in qualified historic buildings;

5. Provide a process for the building services department to grant variances in order to permit the proper preservation or restoration of qualified historic buildings; and

6. Provide a reasonable means of access to historic buildings for people with physical disabilities.

 

C. Scope: The provisions of these sections are not retroactive.

1. Qualified Buildings: This chapter applies solely to qualified historic buildings:

a. Listed on, or nominated by the State Historical Society for listing on the National Register of Historic Places in Iowa;

b. Included in a district which is listed on, or nominated by the State Historical Society for listing on the National Register of Historic Places in Iowa, and which has been determined by the State Historical Society to contribute to the historic significance of the district;

c. Included in a historic district designated by the procedure described in section 14-6-6 of this title.

2. Nonqualified Buildings: This chapter does not apply to the following:

a. Nursing homes;

b. Hospitals;

c. Community based residential facilities;

d. Schools;

e. New additions to historic buildings;

f. New buildings constructed in a historic district; and

g. Buildings that are reproduced.

 

D. Election Of Code:

1. Use Remains Unchanged:

a. Preserved, Renovated, Repaired Or Restored: If a qualified historic building is preserved, renovated, repaired or restored to maintain the building in its original condition and the use remains unchanged from the time of original construction, the owner may elect to be subject to one of the following codes:

(1) This chapter;

(2) The code in effect at the time of original construction;

(3) The uniform code for building conservation; or

(4) The prevailing code.

b. Altered Or Remodeled: When a qualified historic building is altered or remodeled and that portion being altered or remodeled affects the structural strength, fire hazard, exits, required natural lighting or replacement of major equipment, the owner may elect to be subject to one of the following:

(1) This chapter; or

(2) The prevailing code.

2. Use Changes: When a qualified historic building is changed to a new use or converted from a use as an exempt building to a public building or place of employment, the owner may elect to be subject to one of the following codes:

a. This chapter; or

b. The prevailing code.

 

E. Impact Of Other Codes On Qualified Historic Buildings:

1. Codes And Ordinances: Except as specified in subsection E2 of this section, no owner of a qualified historic building who elects to be subject to this chapter may be required to comply with any requirement of the following:

a. Any other building code administered by the city, if the building code concerns a matter addressed by this chapter;

b. Any other local ordinance or regulation, if the ordinance or regulation concerns a matter addressed by this chapter.

2. Limitations: This chapter shall not be construed to affect city of Dubuque requirements relating to land use, zoning, fire districts or other similar requirements.

 

F. Verification Of Qualified Historic Building: If an owner elects to be subject to this chapter, the owner shall prove that the building is a qualified historic building by submitting a verification of historic building status form that is signed by the state historical preservation officer or the planning services department verifying that the building is a qualified historic building.

 

G. Application Of Historic Building Code:

1. Qualified Historic Buildings: Except as specified in subsection G2 of this section, if an owner elects to be subject to this chapter, those sections shall be applied in their entirety.

2. Totally Preserved Buildings Used As Historical Exhibits: Any qualified historic building that is totally preserved and used solely as a historical exhibit shall comply with the requirements specified in section 14-5-10 of this chapter. (2007 Code § 11-70)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507919

14-5-2: ADMINISTRATION AND ENFORCEMENT:linklink

 

A. Plan Examination:

1. Plan Submittal: Plans and specifications for all qualified historic buildings subject to this chapter shall be submitted in accordance with the following:

a. Altered Or Remodeled: If a qualified historic building is remodeled or altered and that portion being remodeled or altered affects the structural strength, fire hazard, exits of the building, required natural lighting, or replacement of major equipment, plans and specifications shall be submitted to the department for examination and be approved before commencing work.

b. Change In Use: If a qualified historic building is changed to a new use, or converted from a use as a nonpublic building to a public building, plans and specifications showing compliance with this chapter shall be submitted to the department for examination and be approved before commencing work.

2. Buildings Exempt From Department Plan Submittal:

a. Preserved, Renovated, Repaired, Or Restored Buildings: Plans and specifications are not required to be submitted to the department for qualified historic buildings that are preserved, renovated, repaired or restored and the use remains unchanged from the time of original construction.

b. Totally Preserved Buildings Used As Historical Exhibits: If a qualified historic building complies with section 14-5-10 of this chapter for a totally preserved building used as a historical exhibit, plans and specifications are not required to be submitted to the department for examination and approval.

3. Plans, Specifications And Data: If plans and specifications are required to be submitted, at least two (2) complete sets of plans, which are clear, legible and permanent copies, and two (2) copies of specifications and data shall be submitted for examination.

a. Preparation: Plans and specifications shall be prepared as specified in Iowa Code chapter 544A, architectural law, and/or Iowa Code chapter 542B, engineering law. All plans shall contain the name of the owner and the address of the building. The signature and stamp or seal of the architect, engineer or designer who prepared the plans shall appear on the title sheet, in accordance with chapters 544A and/or 542B.

b. Building Plans: The building plans shall provide sufficient information to evaluate whether the building conforms to the requirements of this chapter and shall include the following:

(1) Plot Plan: The location of the building with respect to all property lines, adjoining streets, alleys and any other buildings on the same lot or property shall be indicated on the plot plan.

(2) Floor Plans: Floor plans shall be provided for each floor. The size and location of all rooms, doors, windows, firewalls, toilet facilities, structural features, exit passageways, exit lights, fire alarms, standpipes, stairs and other pertinent information shall be indicated. Schematic exit plans shall be provided indicating normal paths of egress.

(3) Elevations: The elevations shall contain information on the exterior appearance of the building and indicate the location and size of doors, windows, roof shape, chimneys, exterior grade, footings and foundation walls, and include information about the exterior materials.

(4) Sections And Details: Sections and details shall include information to clarify the building design.

c. Footing And Foundation: If footing and foundation plans are required to be submitted, at least two (2) complete sets of footing and foundation plans including plot plans, schematic floor plans showing exits, elevations and itemized structural loads shall be submitted to the department.

d. Heating, Ventilating And Air Conditioning Plans: Heating, ventilating and air conditioning plans shall indicate the layout of the system, including location of equipment and size of all piping, duct work, dampers, fire dampers, chimneys, vents and controls. The quantity of outside air introduced to each zone, and the quantity of supply air and exhaust air for each room shall be listed on the plans. The type of equipment and capacity, including the input and output, shall be indicated on the plans or equipment schedules, unless indicated in the specifications.

e. Specifications: The specifications shall be properly identified with the drawings and describe the materials and the workmanship.

4. Structural Report: When plans and specifications are required to be submitted to the department or its authorized representatives, a structural report as specified in section 14-5-6 of this chapter which identifies the structural condition of the building shall be submitted with the plans.

5. Approval Application Forms:

a. Plan Approval Application: A plan approval application approved by the department shall be submitted along with the plans and specifications as required in subsection A3 of this section.

b. Verification Form: A verification of historic status form shall be submitted and signed by the state historic preservation officer or the planning services department verifying that the building is a qualified historic building.

c. Building Evaluation Form: When the building evaluation method is used, a completed building evaluation form as specified in subsection 14-5-4D of this chapter shall be submitted.

 

B. Approvals:

1. Department Approval: The department shall review and make a determination on an application for plan review within fifteen (15) business days of receipt of the application and all forms, fees, plans and documents required to complete the review.

a. Plan Approval:

(1) Conditional Approval: If, upon examination, the department or its authorized representative determines that the plans and the application for approval substantially conform to the provisions of this chapter, a conditional approval, in writing, shall be granted. All noncode complying conditions stated in the conditional approval shall be corrected before or during construction. A conditional approval issued by the department shall not be construed as an assumption of any responsibility for the design or construction of the building.

(2) Denial Of Approval: If the department determines that the plans or the application do not substantially conform to this chapter, the application for conditional approval shall be denied, in writing.

b. Footing And Foundation Approval: Upon submission of two (2) sets of footing and foundation plans, a plans approval application form, structural foundation calculations and a fee, the department may conditionally approve the footing and foundation plans to permit construction of the footings and foundations for a relocated qualified historic building. The department or its authorized representative shall review and make a determination on an application for footing and foundation approval within fifteen (15) business days of receipt of the application and all forms, fees, plans and documents required to complete the review.

 

C. Evidence Of Plan Approval: The architect, engineer, designer, builder, or owner shall keep at the building site one set of plans bearing the stamp of conditional approval and a copy of the specifications. The plans shall be open to inspection by the department.

 

D. Expiration Of Plan Approval: Plan approval by the department or its authorized representative shall expire one hundred eighty (180) days after the date indicated on the approved plans if construction has not commenced within that one hundred eighty (180) day period or if there has been a break in significant construction activity of more than one hundred eighty (180) days.

 

E. Inspections: Inspections shall be conducted by the department to ascertain whether the construction or installations conform to the conditionally approved plans, the conditional approval letter, and provisions of this chapter.

 

F. Fees: Fees for plan examination and inspection shall be submitted to the department after the plans are approved and a plan review fee can be determined, based on the hours spent reviewing. Fees for plan examination and permits shall be as adopted for the prevailing code.

 

G. Petition For Variance: The department shall consider and may grant a variance to a provision of this chapter in accordance with procedures adopted by the department. The petition for variance shall include a position statement from the fire department.

 

H. Penalties: Penalties for violations of this chapter shall be assessed in accordance with section 1-4-2 of this code. (2007 Code § 11-71)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507920

14-5-3: DEFINITIONS:linklink


As used in this chapter, the following terms shall have the meanings ascribed to them:

ALTERED OR ALTERATIONS: To modify a qualified historic building which affects the structural strength, fire hazard, access for the disabled, energy conservation, heating and ventilating, or electrical systems, yet retains some original or restored architectural elements or features.

BUILDING: Any structure used or intended for supporting or sheltering any use or occupancy.

CERTIFIED MUNICIPAL REGISTER OF HISTORIC PROPERTY: A register of historic property that is part of a historic preservation ordinance promulgated by the city of Dubuque.

CHANGE IN USE: The process of adapting a building to accomplish a use other than that for which it was originally designed, but does not mean a change of use within an occupancy chapter.

DEPARTMENT: The building services department.

HISTORIC ASPECT: The particular features of the historic site, building or structure that gives it its historic significance.

HISTORIC FABRIC: The original materials, and portions of the building still intact when exposed or as they appeared and were used in the past.

NATIONAL REGISTER OF HISTORIC PLACES IN IOWA: The places in Dubuque that are listed on the National Register of Historic Places maintained by the U.S. department of the interior.

OCCUPANCY: The purpose for which a building or structure is used or intended to be used as regulated in the prevailing code.

OCCUPANCY CHAPTER: A classification of similar uses designated under a chapter heading in the prevailing code.

ORIGINAL MATERIAL: Those features or elements of a qualified historic building or structure that have some historic significance.

PRESERVED: Maintaining a qualified historic building in its present condition or as originally constructed.

PREVAILING CODE: The most current editions of the international building code, the locally adopted fire code, international plumbing code, international mechanical code and national electrical code.

QUALIFIED HISTORIC BUILDING: A building that is:

A. Listed on, or nominated by the State Historical Society for listing on, the National Register of Historic Places in Dubuque;

B. Included in a district which is listed on, or has been nominated by the State Historical Society for listing on, the National Register of Historic Places in Dubuque, and has been determined by the State Historical Society to contribute to the historic significance of the district;

C. Listed on a certified municipal register of historic property; or

D. Included in a designated historic district and has been determined by the city of Dubuque to contribute to the historic significance of the district.

RECONSTITUTED: A qualified historic building that is reassembled piece by piece on the same site or new site.

RELOCATED: Any qualified historic building or a portion of a qualified historic building that will be moved to a new location.

REMODELED: To substantially change the structure of a qualified historic building, including load bearing and nonload bearing walls or partitions or both; change the location of exits; or change the toilet facilities; but shall not include maintenance, redecoration, reroofing or alteration of mechanical or electrical systems.

RENOVATED: To make sound again any structure by cleanup and replacement of deteriorated detail or structure.

REPAIRED: To replace, clean up, rebuild or renew any portion of a qualified historic building for the purpose of its maintenance.

REPRODUCED: The process of rebuilding an entirely nonexistent structure to its original appearance through archival and archeological investigation.

RESTORED: The process of accurately recovering, by the removal of later work or the replacement of missing earlier work, as it appeared at a particular period of time.

STRUCTURAL DETERIORATION: A decline in the original strength of a structural element caused by fire, water, wind, snow, insects, age or excessive loading, which result in cracks, distortions, deflections, misalignments, abrasion, erosion or corrosion to the structure.

TEST OF TIME: A structure that has over a period of time withstood the combined service loads and environmental stresses imposed upon it and shows no sign of serious deterioration. (2007 Code § 11-72)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507921

14-5-4: BUILDING EVALUATION METHOD:linklink

 

A. Scope: This section provides an alternative method for determining code compliance for a qualified historic building being remodeled, altered or changed in use.

 

B. Building Evaluation Method: This building evaluation method section provides a method for evaluating the degree of life safety of a qualified historic building by comparing seventeen (17) building safety parameters with the requirements of the prevailing code.

1. Life Safety: The degree of life safety is measured in terms of:

a. Fire Safety: The category of fire safety includes the building safety parameters affecting the structural fire resistance, detection, alarm and extinguishing features of a qualified historic building.

b. Means Of Egress: The category of means of egress includes those building safety parameters of a qualified historic building affecting safe evacuation.

c. General Safety: The category of general safety includes all the safety building parameters under fire safety and means of egress.

2. Seventeen Building Parameters: A qualified historic building shall be evaluated using the seventeen (17) building safety parameters indicated in table 1 of this subsection.

TABLE 1

1.  

Number of stories  

2.  

Building area  

3.  

Building setback  

4.  

Attic compartmentalization  

5.  

Fire stopping  

6.  

Mixed occupancies  

7.  

Vertical openings  

8.  

HVAC systems  

9.  

Smoke detection  

10.  

Fire alarms  

11.  

Smoke control  

12.  

Exit capacity  

13.  

Dead ends  

14.  

Maximum travel distance  

15.  

Emergency power  

16.  

Elevator control  

17.  

Sprinklers  

3. Determining Numerical Value: Each building safety parameter shall be evaluated using the criteria specified under that particular building safety parameter (tables 2 through 18 of this section) in order to determine the degree of life safety provided by the qualified historic building and the numerical value assigned for the degree of life safety.

a. Numerical values may not be interpolated and shall be listed according to value and positive (+) or negative (-) sign.

b. Numerical values may not be assigned to those spaces on the summary sheet identified with "n/a".

c. Where a building parameter does not apply, a value of zero shall be assigned.

4. Building Evaluation Form: After the numerical value has been determined for each building safety parameter, the same numerical value shall be entered on the building evaluation form in subsection D of this section under each of the life safety categories titled, "fire safety", "means of egress" and "general safety" for each building parameter.

5. Total Building Safety Score: After each building parameter of the building is evaluated, the numerical values shall be algebraically summed or totaled according to value and sign for each column on the evaluation form in subsection D of this section for fire safety, means of egress and general safety to determine a total building safety score.

a. If the total building safety score under each column is equal to or greater than zero, the qualified historic building is considered to be a code complying building and may be used for the proposed use.

b. If the total building safety score of any one of the columns related to fire safety, means of egress or general safety is less than zero, additional safety measures shall be provided to bring the total numerical score of that column to a value which is equal to or greater than zero.

6. Filing Of Building Evaluation Form: A copy of the building evaluation form shall be submitted with the plans and specifications.

a. Single Use: One building evaluation form shall be completed for a qualified historic building containing a single use or a similar use within the same occupancy classification or where an occupancy separation is not provided.

b. Mixed Uses: One building evaluation form for each use shall be completed for a qualified historic building containing uses not within the same occupancy classifications, separated by an occupancy separation.

 

C. Building Evaluation Procedures: When the building evaluation method is used, the process specified in this section shall be used in its entirety. The building evaluation method analyzes a qualified historic building in accordance with the building safety parameters specified in this section and compares them against the prevailing code to determine a numerical value of safety provided in the qualified historic building.

1. Number Of Stories:

a. Class Of Construction:

(1) The class of construction of the qualified historic building shall be determined by comparing the actual building elements to those specified in the prevailing code.

(2) Buildings with different classes of construction shall be separated with a separation specified in the prevailing code unless the lowest class of construction is used as the basis for the evaluation.

b. Allowable Number: The allowable number of stories for the class of construction of the qualified historic building shall be determined in accordance with the prevailing code and the class of construction or height requirements or both as specified in the applicable occupancy chapters.

c. Numerical Value: A single numerical value from table 2 of this subsection shall be determined and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, number of stories, for fire safety, means of egress and general safety.

TABLE 2

Safety Parameter/Number Of Stories  

Numerical Value  

Each story above the maximum number of stories allowed  

-5  

Complies with prevailing code  

0  

Each story below the maximum number of stories (maximum value, +10)  

+5  

2. Building Area:

a. The allowable building area of a qualified historic building shall be determined using the allowable area requirements for the class of construction and use as specified in the prevailing code and the allowable area requirements specified in the applicable occupancy chapter.

b. If the qualified historic building has more stories than permitted by the prevailing code, the maximum number of stories allowed for that class of construction in the prevailing code shall be used to determine the maximum allowable area requirements for the building.

c. When the entire building is protected by an approved automatic sprinkler system complying with the prevailing code, the allowable building area may be increased as specified in the prevailing code.

d. Where an assembly hall is located in a building with other uses, the building shall comply with the class of construction requirements as specified in the prevailing code.

e. A single numerical value shall be determined from table 3 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, building area, for fire safety, means of egress and general safety.

TABLE 3

Building Area  

Numerical Value  

More than 150 percent of the allowed area  

-5  

131 percent - 150 percent of allowed area  

-4  

121 percent - 130 percent of allowed area  

-3  

111 percent - 120 percent of allowed area  

-2  

90 percent - 110 percent of allowed area  

0  

Where code does not have area limitations  

0  

80 percent - 89 percent of allowed area  

+2  

70 percent - 79 percent of allowed area  

+3  

50 percent - 69 percent of allowed area  

+4  

Less than 50 percent of the area allowed  

+5  

3. Building Setbacks:

a. The building setback shall be compared with those specified in the class of construction requirements in the prevailing code and the class of construction requirements in the applicable occupancy chapter.

b. A single numerical value shall be determined from table 4 of this subsection using the worst case condition and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, building setback, for fire safety and general safety.

TABLE 4

Building Setbacks  

Numerical Value  

Closer than allowed under the prevailing code  

-2  

Complies with prevailing code  

0  

Greater than the prevailing code  

+2  

4. Attic Compartmentalization:

a. The attic area of a qualified historic building shall be evaluated against the compartmentalization standards specified in the prevailing code.

b. A single numerical value shall be determined from table 5 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, attic compartmentalization, for fire safety and general safety.

c. If the total attic area is less than three thousand two hundred (3,200) square feet, the numerical value is zero.

d. All existing or proposed building features used or considered under this subsection C shall be shown or indicated on the plans submitted for review.

TABLE 5

Attic Compartmentalization  

Numerical Value  

Attic compartmentalized into areas >3,200 square feet  

-3  

Complies with prevailing code (=3,200 square feet)  

0  

Attic compartmentalized into areas <2,000 square feet  

+3  

5. Fire Stopping:

a. The fire stopping characteristics of a qualified historic building shall be evaluated in accordance with the fire stopping requirements specified in the prevailing code.

b. If the existing wall material is removed and the wall cavity is exposed, fire stopping shall be provided in accordance with the prevailing code.

c. A single numerical value shall be determined from table 6 of this subsection for the entire building based on the worst case condition and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, fire stopping, for fire safety and general safety.

TABLE 6

Fire Stopping  

Numerical Value  

No fire stopping or no verification of fire stopping  

-5  

Fire stopping provided at basement and attic levels and wherever accessible  

-3  

Complies with prevailing code (or verified)  

0  

6. Mixed Occupancies:

a. Occupancy separations in a qualified historic building shall be evaluated as required under the occupancy chapters of the prevailing code and the occupancy separation requirements in the applicable occupancy chapters.

b. A single numerical value shall be determined from table 7 of this subsection based on the worst case condition and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, mixed occupancies, for fire safety and general safety.

TABLE 7

Occupancy Separations  

Numerical Value  

No separation provided, but required  

-5  

Provided, but 2 hours less than required  

-4  

Provided, but 1 hour less than required  

-2  

Complies with prevailing code for fire resistive ratings  

0  

No separation is required  

0  

Provided, and 1 or more hours greater than required1  

+2  


Note:
 1.Where a 3 hour is required and a 4 hour is provided, the value shall be 0.

7. Vertical Openings:

a. The fire resistive rating of enclosures of stairway exits, hoistways, escalator openings and other shafts within a qualified historic building or openings between two (2) or more floors shall be evaluated in accordance with the prevailing code.

b. Atriums more than three (3) levels shall not be considered in the evaluation of vertical openings, but shall comply with subsection 14-5-5B of this chapter.

c. Where assembly halls are located in buildings with other uses, the required exits shall comply with the prevailing code.

d. A single numerical value shall be determined in accordance with table 8 of this subsection based on the worst case condition and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, vertical openings, for fire safety, means of egress and general safety.

TABLE 8

Vertical Openings  

Numerical Value
(Per Shaft
Or Opening)  

No enclosure  

-3  

Enclosure with no rating  

-2  

Enclosure provided, but 1 hour less than the required protection level  

-1  

Complies with prevailing code  

0  

1 hour required, but 2 hour provided  

+1  

8. Heating, Ventilating, And Air Conditioning:

a. The number of floors in a qualified historic building served by an individual heating, ventilating, and air conditioning (HVAC) system shall be evaluated in accordance with the prevailing code.

b. A single numerical value shall be determined from table 9 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, HVAC system, for fire safety, means of egress and general safety.

TABLE 9

HVAC Systems  

Numerical Value  

Greater than 5 floor levels served by undampered duct system, combustibles in air plenums, or corridors used as air plenums  

-5  

3 to 5 floor levels served by undampered duct system  

-2  

2 floor levels served by undampered duct system  

-1  

Complies with prevailing code or provided with fire dampers  

0  

Multilevel buildings having 1 floor level HVAC system or central system with no ducts serving other floor levels  

+5  

9. Smoke Detection:

a. A qualified historic building shall be evaluated for the building's ability to detect smoke from a fire, based on the location and operation of smoke detectors that are in addition to the smoke detectors required by the applicable occupancy chapters of the prevailing code.

b. A single numerical value shall be determined from table 10 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, smoke detection, for fire safety, means of egress and general safety.

TABLE 10

Smoke Detection  

Numerical Value  

Complies with prevailing code  

0  

Elevator lobby only and not required by the prevailing code  

+1  

HVAC supply only and not required by the prevailing code  

+2  

HVAC supply and elevator lobby and not required by the prevailing code  

+3  

All corridors, in addition to those required by the code, including elevator lobbies1  

+4  

Total space with interconnection of smoke detectors and building fire alarm system and not required by the prevailing code  

+5  


Note:
 1.If required detectors meet the requirements for corridor protection, enter 0.

10. Fire Alarms:

a. The fire alarm system shall be evaluated in accordance with the prevailing code and the fire alarm requirements in the applicable occupancy chapter.

b. A single numerical value shall be determined from table 11 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, fire alarms, for fire safety, means of egress and general safety.

TABLE 11

Fire Alarms  

Numerical Value  

Manual fire alarm system required, but not provided  

-5  

Manual fire alarm system required and provided, but does not comply with the prevailing code  

-2  

Complies with the prevailing code  

0  

Manual fire alarm system provided but not required1  

+1  

Manual fire alarm and voice alarm or manual fire alarm with public address system provided, but not required2  

+3  

Central control station3,4  

+4  

Central control station and interconnected to a remote control station which is permanently monitored3,4  

+5  


Notes:
 1.If a numerical value of +5 is taken under subsection C9, "Smoke Detection", of this section, the numerical value for this section is 0.
 2.Voice alarm and public address system shall be activated from a location which is occupied by an employee during all periods of building occupancy.
 3.The central control station must comply with the prevailing code.
 4.Fire department may require systems to be interconnected with the fire department.

11. Smoke Control:

a. The ability to control the movement of smoke from a fire by natural or mechanical venting, exhaust or pressurization systems in a qualified historic building shall be evaluated in accordance with the prevailing code for the entire building based on the worst case condition.

b. A single numerical value shall be determined from table 12 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, smoke control, for fire safety, means of egress and general safety.

c. If a building is two (2) stories or less in height, the numerical value is zero.

TABLE 12

Smoke Control  

Numerical Value  

Operable windows, that are operable without special keys or tools, are provided throughout the entire building, but not required  

+2  

Automatic smoke vents provided throughout entire building, but not required  

+3  

1 smokeproof stair enclosure provided and building has operable windows, but neither required  

+5  

Pressurized stairs (all stairs) provided, but not required  

+7  

Engineered smoke control and removal system provided that covers the entire building, but not required  

+10  

12. Exit Capacity:

a. The means of egress by number of exits, location of exits, occupant load and capacity of exits in a qualified historic building shall be evaluated in accordance with the prevailing code for the entire building based on the worst case condition.

b. The minimum number of exits shall be provided as specified in the prevailing code for the applicable occupancy chapter.

c. A single numerical value shall be determined from table 13 of this section and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, exit capacity, for means of egress and general safety.

d. If exiting differs on various floor levels, the worst case floor shall be evaluated.

TABLE 13

Exit Capacity  

Number Value
(Per Exit)  

Complies with prevailing code  

0  

Horizontal exits are provided in addition to the required exits1  

+2  

Exits to grade or enclosed stairs exceed the minimum number of exits2  

+3  

Eliminate a fire escape exit and provide a code complying enclosed stairway exit serving 3 or more levels  

+5  


Notes:
 1.No more than
1/2 the exits may be horizontal exits.
 2.Exits shall be at least 20 feet apart.

13. Dead Ends:

a. The length of the travel path in which the building occupants are confined to a single direction of egress shall be evaluated in accordance with table 14 of this section for the entire building based on the worst case condition.

b. Dead ends greater than thirty feet (30') are not permitted.

c. The creation of new dead end corridors is prohibited.

d. A single numerical value shall be determined from table 14 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, dead ends, for means of egress and general safety.

TABLE 14

Dead Ends  

Numerical Value
(Per Dead End)  

Dead ends more than 20 feet  

-5  

Complies with prevailing code or dead ends less than 20 feet  

0  

14. Maximum Travel Distance To An Exit:

a. The length of travel to a required exit in a qualified historic building shall be evaluated in accordance with the prevailing code.

b. When the entire building is protected by an approved automatic sprinkler system, complying with the prevailing code, the travel distances may be increased as specified in the prevailing code.

c. Travel distances that exceed twenty five percent (25%) above the required limitations are not permitted.

d. A single numerical value shall be determined from table 15 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, maximum travel distance, for means of egress and general safety.

TABLE 15

Maximum Travel Distance  

Numerical Value  

111 percent - 125 percent of limit allowed  

-5  

90 percent - 110 percent of prevailing code limit  

0  

50 percent - 89 percent of limit allowed1  

+3  

Less than 50 percent of limit allowed1  

+5  


Note:
 1.For residential occupancies, no credit may be taken for reduced exit distance.

15. Emergency Power:

a. The availability of emergency power for emergency lighting in a qualified historic building shall be evaluated in accordance with the prevailing code.

b. A single numerical value shall be determined from table 16 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this subsection under the safety parameter, emergency power, for means of egress and general safety.

TABLE 16

Emergency Power  

Numerical Value  

Emergency power required, but not provided  

-5  

Complies with prevailing code  

0  

Emergency power provided, but not required1  

+2  


Note:
 1.Does not apply to buildings 2 stories or less in height.

16. Elevator Control:

a. The elevator equipment and controls that can be used by the fire department in a qualified historic building to rescue building occupants from upper floors during a fire when installed shall be evaluated in accordance with the prevailing code.

b. A single numerical value shall be determined from table 17 of this subsection and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, elevator control, for fire safety, means of egress and general safety.

TABLE 17

Elevator Control  

Numerical Value  

No elevators in buildings 3 stories or more in height  

-3  

No elevator in buildings 2 stories or less in height  

0  

Elevator with fire department control in buildings 3 stories or less in height  

+1  

Elevator with automatic recall in buildings 3 stories or more in height  

+4  

Elevator with fire department control and automatic recall in buildings 3 stories or more in height  

+5  

17. Sprinklers:

a. The sprinkler system provided in a qualified historic building shall be evaluated in accordance with the prevailing code and the applicable occupancy chapters.

b. A single numerical value shall be determined from table 18 of this section and the numerical value and its sign, either positive or negative, shall be entered on the evaluation form in subsection D of this section under the safety parameter, sprinklers, for fire safety, means of egress and general safety.

c. If the building area evaluation was based on sprinkler protection as allowed by subsection C2 of this section, the numerical value under this subsection is zero.

TABLE 18

Sprinklers  

Numerical Value  

System required but not provided1  

-5  

Existing sprinkler system is required but does not meet prevailing code2  

-1  

Sprinkler system is not required and not provided  

0  

Sprinkler system required and provided in accordance with the prevailing code  

0  

Existing sprinkler system is not required and does not meet prevailing code1  

+1  

Sprinklers provided in unseparated hazardous areas and exit passageways, but not required  

+3  

Partial sprinkler system is provided throughout at least 75 percent of the building, but not required  

+5  

If sprinkler system is required, and regular sprinkler heads are replaced with quick response heads  

+5  

Complete sprinkler system provided throughout entire building, but not required  

+7  

Complete sprinkler system complying with NFPA 13 for quick response heads is provided throughout the entire building, but not required3  

+10  


Notes:
1.If -5 was entered under subsection C2 of this section, numerical value is 0.
2.Does not apply to partial systems.
3.If -5 was entered under subsection C2 of this section, numerical value is +5.

 

D. Building Evaluation Form: The numerical values determined in subsection C of this section shall be entered in table 19 of this subsection.

TABLE 19

Safety Parameters  

Fire Safety  

Means Of Egress  

General Safety  

Comments  

1.  

Number of stories  

 

 

 

 

2.  

Building area  

 

 

 

 

3.  

Building setback  

 

n/a  

 

 

4.  

Attic compartmentalization  

 

 

 

n/a  

5.  

Fire stopping  

 

n/a  

 

 

6.  

Mixed occupancies  

 

n/a  

 

 

7.  

Vertical openings  

 

 

 

 

8.  

HVAC systems  

 

 

 

 

9.  

Smoke detection  

 

 

 

 

10.  

Fire alarms  

 

 

 

 

11.  

Smoke control  

n/a  

 

 

 

12.  

Exit capacity  

n/a  

 

 

 

13.  

Dead ends  

n/a  

 

 

 

14.  

Maximum travel distance  

n/a  

 

 

 

15.  

Emergency power  

n/a  

 

 

 

16.  

Elevator control  

 

 

 

 

17.  

Sprinklers  

 

 

 

 

Total Safety Score  

 

 

 

 


(2007 Code § 11-73)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507922

14-5-5: MISCELLANEOUS BUILDING REQUIREMENTS:linklink

 

A. Purpose: The purpose of this section is to provide alternative building standards for qualified historic buildings.

 

B. Atriums: Where the use of a qualified historic building is changed to a new use and an atrium exists, the atrium may remain subject to the following:

1. Three Levels Or Less: Except as provided in subsection B3 of this section, atriums in a qualified historic building serving three (3) levels or less may remain as constructed; however, the atrium will be considered an unenclosed shaft under subsection 14-5-4C7 of this chapter.

2. More Than Three Levels: Atriums in a qualified historic building serving more than three (3) levels, but not exceeding eight (8) levels, may be permitted subject to the requirements in the prevailing code or the alternate atrium standards specified in subsection B3 of this section.

3. Alternate Atrium Standards:

a. Separations: The atrium opening shall be separated at each floor by nonrated partitions or glazing.

b. Doors: Doors shall be provided in the openings separating the atrium from the floor.

(1) Existing doors may be nonrated.

(2) New doors shall be of a solid wood core type or particleboard core type door and may have glazing. Doorframes may be of wood.

(3) All doors shall be automatic self-closing in accordance with the prevailing code. The hold open device shall be activated by a product of combustion detector which responds to products of combustion other than heat.

c. Smoke Detection: A smoke detection system, interconnected to a building fire alarm system, shall be provided on each floor at the atrium perimeter.

d. Smoke Removal: A mechanical smoke removal system shall be provided at the top of the atrium to exhaust smoke to the outside.

(1) The smoke removal system shall be activated by activation of two (2) or more of the detectors required by subsection B3c of this section.

(2) The smoke removal system shall exhaust six (6) air changes per hour based on the volume of the atrium and spaces open to the atrium but not less than forty thousand (40,000) CFM.

(3) The smoke removal system shall be subject to the prevailing mechanical code.

e. Exiting: At least one exit shall be provided from each space on each floor level that is independent of any exit located in or through the atrium.

4. New Atriums: Atriums constructed on or after January 1, 1986, shall comply with the requirement of the prevailing code.

 

C. Roof Coverings: Existing roof coverings not in conformance with the ratings specified in chapter 15 of the prevailing code may be allowed to remain on the building. Repairs may be made up to fifty percent (50%) of the entire roof surface with materials that match the existing roof coverings. If more than fifty percent (50%) of the entire roof surface needs to be repaired, the roof covering shall conform to the requirements of the prevailing code. Where wood shingles are utilized to preserve the historic features, the shingles shall be of a fire treated type and of a class C rating.

 

D. Illuminated Exit Signs: Exit signs shall be provided in accordance with the prevailing code.

 

E. Fire Escapes:

1. Permitted Uses: Existing fire escapes constructed in accordance with the prevailing code or the prevailing uniform code for building conservation may continue to be used as an exit unless the building use is changed to a use where fire escapes are not permitted.

2. Exits To Fire Escapes: Every fire escape shall be accessible from a public passageway, or shall be directly accessible from each occupied room. Exits to fire escapes shall be standard exit doors as specified in the prevailing code. Access to a required fire escape platform may be provided with an interior stairs complying with the prevailing code.

3. Structural Analysis: All existing fire escapes intended to be used as a required exit shall be inspected, structurally analyzed or load tested prior to use. A written report from the engineer or architect stating the results of the inspection and structural analysis or load test shall be submitted to the department. The report shall document the physical condition of the fire escape, condition of the attachment of the fire escape to the exterior wall and capacity of the fire escape to support imposed loads. The report shall outline what corrective action is necessary, if any, and shall be submitted to the department.

 

F. Stairway Requirements: Except for the following, existing required exit stairways shall comply with the prevailing code:

1. Width: Minimum stairway width shall be at least thirty six inches (36").

2. Riser And Treads:

a. Ten Or Less People: Existing stairways serving ten (10) or less people may have riser and tread dimensions not to exceed a forty five degree (45°) angle with the horizontal.

b. More Than Ten People: All required exit stairways shall have a uniform rise of not more than seven and three-fourths inches (73/4") and a uniform tread not less than nine and one-half inches (91/2"), measuring from riser to riser and tread to tread.

3. Handrails: Except for the following, handrails shall comply with the prevailing code:

a. Extensions: The twelve inch (12") handrail extension as specified in the prevailing code at the bottom and top of stairways does not apply to existing stairways.

b. Openings Below Top Rail: Existing handrails protecting the open sides of stairways and ramps may have an opening no larger than twelve inches (12") between the rails.

 

G. Guardrails: Except for the following, guardrails shall comply with the prevailing code:

1. Height: If the height of a guardrail is less than thirty six inches (36"), an additional rail shall be provided to the top of the rail to increase the overall height to forty two inches (42").

2. Openings Below Top Rail: Additional rails provided in accordance with subsection G1 of this section shall be installed such that the distance between the two (2) top rails does not allow the passage of an object with a diameter larger than twelve inches (12").

H. Doors: Exit door size and swing shall comply with the prevailing code. Double doors may be used with a door leaf less than thirty two inches (32") in width, provided the total door width measures at least thirty six inches (36").

I. Sanitary Facilities: Sanitary facilities shall be provided in accordance with the prevailing code. (2007 Code § 11-74)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507923

14-5-6: ALTERNATE STRUCTURAL REQUIREMENTS:linklink

A. Purpose: The purpose of this section is to ensure that qualified historic buildings are structurally sound, while allowing the significant historic fabric of the building to remain.

B. Scope: All qualified historic buildings shall meet the loading requirements specified in this section.

C. Application:

1. Alternate Structural Requirements: Except as provided in subsection C2 of this section, this section applies to historic buildings being:

a. Reconstituted;

b. Repaired;

c. Remodeled; or

d. Changed in use.

2. Nonhistoric Additions And Alterations:

a. Structurally Separated: New additions that are structurally separated from the existing qualified historic structure shall comply with the loading requirements of the prevailing code.

b. Affect Existing Structure: New additions or alterations which impose vertical or lateral loads on an existing qualified historic building are not permitted unless the supporting structure of the qualified historic building is capable of supporting the imposed load or unless the structure is augmented to meet the additional imposed loads.

 

D. Structural Report:

1. When Required: A structural report shall be prepared on historic structures in accordance with the following:

a. Less Than Twenty Five Percent: When a qualified historic building is remodeled or changed in use which affects less than twenty five percent (25%) of the total area of the building, a structural analysis shall be performed on that portion being remodeled.

b. Twenty Five Percent Or More: When a qualified historic building is remodeled or changed in use that affects twenty five percent (25%) or more of the total area of the building, a complete structural analysis shall be performed on the entire building.

c. Reconstituted Building: Prior to reconstituting any vacant qualified historic building, a structural analysis of the entire building shall be performed.

d. Repairs And Replacements: If any part of a historic building is repaired or replaced, a structural analysis shall be performed on that portion being repaired or replaced showing that the repair or replacement equals or exceeds the structural capability of the part being repaired or replaced.

2. Visual Examination: A visual examination shall be made by an engineer or architect to determine if the building structure has cracks, distortions, sagging, excessive deflections, significant misalignment, signs of leakage and peeling of finishes caused by fire, wind, water or snow.

3. Analysis: A structural analysis shall be prepared by an Iowa registered engineer or architect that describes the structural condition of the building.

a. The analysis shall demonstrate that the building structure can support the imposed live loads.

b. An analysis shall be made of the floors to determine the actual load carrying capacity.

c. An analysis shall be made of the roof to determine the actual load carrying capacity or, the architect or engineer shall submit a statement, signed and sealed that the roof structure has stood the test of time described in subsection E2 of this section.

d. An analysis shall be made to determine if the structural frame can carry all combined loads.

 

E. Alternative Standards: The alternative standards for loading and materials may be used in lieu of those in the prevailing code.

1. Floor Live Loads:

a. Reductions: Except for storage areas and assembly occupancies, the following floor live loads may be used in all occupancies in lieu of augmenting the structure to accommodate the required loading specified in the prevailing code:

(1) The live load specified in the prevailing code may be reduced by fifteen percent (15%) for flexure if three (3) or more wood structural members are spaced less than twenty four inches (24") on center and are joined by a load distributing element. This live load reduction may not be applied to the supports or if the original design used repetitive allowable stresses.

(2) The reductions specified in the prevailing code for large tributary areas which comply with the prevailing code may be used.

(3) The live load specified in the prevailing code may be reduced by ten percent (10%) if the existing structure provides a two (2) hour fire resistive rating. This reduction may be applied to steel and concrete systems only.

(4) The permitted reductions specified in subsections E1a(1) through E1a(3) of this section are not to be used cumulatively.

b. Posting: If the actual live load capability is less than the required live load specified in the prevailing code, the actual live capability load shall be conspicuously posted and no greater load may be imposed upon the building.

2. Test Of Time Standard: The test of time standard may be applied in lieu of meeting the design load requirements for roof dead load, live load and wind load specified in the prevailing code where no change of loading will occur, provided:

a. The historic building has been determined to support the imposed floor loads; and

b. The building has stood for more than twenty (20) years with no visible signs of deterioration.

 

F. Use Of Archaic Materials: This section establishes alternative standards that may be used to evaluate the performance of archaic materials and assemblies in qualified historic buildings.

1. Allowable Stresses And Construction Requirements: Allowable stresses and construction requirements for archaic materials may be assigned on the basis of comparison with similar conventional codified materials or tests or both.

a. Archaic Codes: Whenever possible, allowable stresses and construction requirements shall be assigned on the basis of the code in effect at the time of construction.

b. Determination: The allowable stresses may be determined as follows:

(1) Wood: Unless wood is laboratory tested, the allowable stress shall not exceed the lowest allowable stress for that particular species and grade. If the grade and species cannot be determined, the allowable stress for the lowest grade and species may be used.

(2) Masonry: Allowable stresses for masonry may be determined by laboratory results.

(3) Steel: The allowable stresses for steel may be determined using earlier editions of steel design manuals for the period when the steel was fabricated.

(4) Concrete: The allowable stresses for concrete may be determined using earlier editions of concrete design manuals.

2. Structural Changes: Structural changes to buildings that are restored, altered or repaired may be made with the same materials of which the existing building or structure was constructed in order to maintain historical integrity.

3. Fire Resistant Properties:

a. Archaic Building: The fire resistance of an archaic building element may be determined from tables on fire ratings of archaic materials and assemblies recognized by the department and in accordance with the following conditions:

(1) The building element shall be constructed of materials with the same dimensions and properties as indicated in the tables;

(2) The thickness shall be at least equal to, or greater than, that specified in the tables;

(3) All penetrations in the building element, or assembly, for electrical, plumbing and heating, ventilating and air conditioning systems shall be packed with noncombustible cementitious materials and so fixed that the packing material will not fall out when it loses its water of hydration; and

(4) Any effect of age, wear and tear shall be repaired so that the building element is sound, and the original thickness of all components is maintained.

b. Ratings: Fire resistance ratings for a building element may be determined by:

(1) An actual test by an approved testing laboratory as specified in prevailing code;

(2) Typical examples as listed in the prevailing code; or

(3) An approved calculation method that utilizes the principles and theories of heat flow, mechanical properties, deflection, capacity and as outlined in the prevailing code.

c. New Materials: The fire resistance of any new assembly or materials shall conform to the provisions of the prevailing code. (2007 Code § 11-75)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507924

14-5-7: ALTERNATE ACCESSIBILITY REQUIREMENTS:linklink

 

A. Purpose: The purpose of this section is to ensure that qualified historic buildings provide access for people with physical disabilities, while maintaining the significant historic fabric or historic aspects of such buildings.

 

B. Accessibility Requirements: All qualified historic buildings being altered or remodeled, added to or changed in use shall comply with the requirements of the prevailing code or the prevailing uniform code for building conservation and ADAAG 4.1.7. (2007 Code § 11-76)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507925

14-5-8: ALTERNATE MECHANICAL REQUIREMENTS:linklink

 

A. Purpose: The purpose of this section is to ensure that qualified historic buildings are properly heated, ventilated and air conditioned, while allowing the significant historic fabric of the building to remain.

 

B. Application:

1. Alternate Mechanical Requirements: Except for historic exhibits and seasonal use buildings, used during the period of May 15 through September 15, all qualified historic buildings shall be provided with a heating system.

a. The building shall be equipped with heating equipment that equals or exceeds the transmission losses and ventilation of infiltration losses, whichever are greater. The heat loss shall be based on the design criteria for outside temperatures and interior design temperatures for the specific use specified in the prevailing code.

b. If the existing heating equipment output equals or exceeds the heat loss, the heating equipment may be used, provided all the safety devices are in working order or the defective safety devices are replaced.

c. If room sizes are increased and the heating equipment serving the room has sufficient capacity to meet the increased heat loss, the equipment may be used, provided:

(1) The equipment has sufficient capacity to meet the new heat loss and the equipment can operate safely at the increased temperature or pressure; and

(2) Safety devices are repaired or replaced to operate at the increased temperature or pressure.

d. If room sizes are increased and the heating equipment serving the room does not have sufficient capacity to meet the increased heat loss:

(1) Additional equipment shall be added to meet the new heat loss; or

(2) New heating equipment shall be provided to offset the additional heat loss.

e. If rooms are reduced in size such that the resulting heat loss is less than that provided to the space, the existing equipment may be altered by reducing the heat to that space if reducing the heat does not affect the safety devices regulating the system.

f. Any alteration or remodeling of existing heating equipment or systems shall conform to the prevailing code for that portion being remodeled or altered. Unless replaced with a like kind, the replacement shall conform to the prevailing code.

2. Light And Ventilation: Except for historic exhibits, all qualified historic buildings shall be provided with natural light and ventilation as specified in the prevailing code.

3. Air Conditioning: Existing air conditioning systems may be allowed to remain. Any alteration made to an existing air conditioning system shall conform to the prevailing code. (2007 Code § 11-77)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507926

14-5-9: ALTERNATE ELECTRICAL REQUIREMENTS:linklink

 

A. Purpose: The purpose of this section is to ensure that qualified historic buildings are properly wired while allowing the significant historic fabric of the building to remain.

 

B. Application:

1. Qualified Historic Buildings: Except for historic buildings complying with subsection B2 of this section, all other qualified historic buildings shall be serviced with electricity as follows:

a. Change Of Use: If a qualified historic building is changed in use, a load calculation of the building shall be performed for the proposed use. If the load calculation exceeds the actual service provided, the service shall be upgraded to meet the new load.

b. Reconstituted: If a qualified historic building is without electrical service and is going to be reconnected to electrical service, the existing wiring shall be inspected at the service panels, outlets, switches and where exposed to determine the physical condition of the wire and equipment.

c. Alterations And Repairs: Any alterations, repair or replacement to an existing conductor, outlet, switch and equipment in a qualified historic building shall be made in accordance with the prevailing electrical code for that portion being altered, repaired or replaced.

d. Existing Building: Existing qualified historic buildings may use the existing electrical system without upgrading the electrical system to the prevailing code.

2. Historic Exhibits: Qualified historic buildings used as historic exhibits do not require electrical service. (2007 Code § 11-78)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507927

14-5-10: TOTALLY PRESERVED BUILDINGS USED AS HISTORICAL EXHIBITS:linklink

 

A. Scope: This section establishes alternative standards for a qualified historic building that is open to the public and used solely as a historic exhibit. Repairs may be made without conformity to the prevailing code to restore the building to the original condition.

 

B. Historic Exhibits:

1. Exempt: Except as specified in subsection B2 of this section, a qualified historic building used as a historic exhibit is exempt from complying with the requirements of the prevailing code or other sections of this chapter.

2. Minimum Safety Requirements: The following minimum safety requirements shall be complied with:

a. The historic building is open to the public only under the supervision of a tour guide;

b. The historic building is not lived in, slept in or worked in except for the purpose of demonstrating to the public how people lived in a particular era;

c. No smoking is allowed in the building;

d. No open flame equipment is installed in the building, other than fireplaces and original equipment;

e. Fire extinguishers are provided, but may be located in a nonconspicuous location on the premises;

f. At least one smoke detector is provided for each one thousand two hundred (1,200) square feet of area with a minimum of one detector per floor level. Where electricity is available, the smoke detectors shall be connected to the electrical power. Where no electrical power is available, the smoke detector may be of a battery type. Smoke detectors shall be tested weekly;

g. Access for the disabled is provided in accordance with section 14-5-7 of this chapter;

h. The capacity of the floor system shall be determined by a registered architect or engineer and any changes that are necessary shall be made prior to the building being open to the public;

i. Historic buildings provided with only one exit shall be restricted to a capacity of ten (10) persons located above the first floor at any one time;

j. Signs shall be posted in the building identifying and warning of stairs and headroom clearance that do not conform to the prevailing code; and

k. Exit signs shall be provided in accordance with the prevailing code in buildings occupied prior to one-half (1/2) hour before sunrise and one-half (1/2) hour after sunset and in all areas not provided with natural lighting.

 

C. Sanitary Requirements: Toilet facilities shall be made available in accordance with the prevailing code. The facilities may be located on the site and serve more than one historic exhibit. (2007 Code § 11-79)

http://sterlingcodifiers.com/codebook/index.php?book_id=803&section_id=507928






 

Press Ctrl-C to copy this link and then paste into your favorites to create a bookmark to this location.

http://sterlingcodifiers.com/codebook/index.php?book_id=803&chapter_id=54876

 


Enter content here

Enter content here

Enter content here

Enter supporting content here