Appendix 1306

NEW BUILDINGS ONLY

1306.0100 SPECIAL FIRE SUPPRESSION SYSTEMS (OPTIONAL).

Subpart 1. General. This part authorizes optional provisions which are adopted by a municipality in addition to the state building code, for the installation of on-premises fire suppression systems in new buildings and buildings additions to existing buildings which have the occupancy classification changed.

Subp. 2. Municipal option. The sprinkler system requirements of this chapter when adopted with the selection of either item "5a", " 5b", or "5c", become part of the state building code. When adopted, the requirements are applicable throughout the municipality without future change for new buildings additions to existing buildings and buildings which will have the occupancy classification changed.

Subp. 3. Requirements. Automatic sprinkler systems must be installed and maintained operational within the structures of the occupancy classifications listed in items 1 through 5. For purposes of this chapter separation walls do not establish separate buildings. The square footage requirements stated in the following items are based on the gross square footage of the entire building and establish the threshold where the provisions apply. Basement areas less than required under items 1 – 5 are exempt as stated in the state building code.

1. Group A-1, A-2, A-2.1, and A-3 occupancies.

2. Groups B, F, H-4, M and S occupancies with 2,000 or more square feet of floor area or three or more stories in height and all basements in these occupancies exceeding 2,000 square feet in size.

3. Group E-1 and E-2 occupancies with 2,000 or more square feet of floor area or two or more stories in height.

4. Group E-3 occupancies with an occupant load of 30 or more.

5a. Group R occupancies.

5b. All R occupancies except 1 and 2 family dwellings.

5c. All R occupancies except 1 – 4 family dwellings less than 8,500 square feet of floor area including attached garages.

Exception to 51, 5b, or 5c.

Regardless of which option (5a, 5b, or 5c) that a municipality adopts, additions to "R" occupancy buildings are not required to be sprinklered.

Subp. 4. Standard Automatic sprinkler systems must comply with the applicable standard referenced in the state building code. When a public water supply is not available, an alternate on-site source of water can be used if it meets the approval of the building official and fire chief. When an adequate alternate water supply for hose stream requirements is provided or available, the building official and fire chief may permit the water supply requirements for the hose stream demands to be modified.

Subp. 5. Substitute construction. The installation of an automatic sprinkler system, as required by this chapter, does not preclude the substitution of one-hour fire-resistive construction as permitted in UBC Section 508.

Subp. 6. Exemption. The building official, with the concurrence of the fire official, is allowed to waive the requirements of this section when the application of water has been demonstrated to constitute a serious life, fire or environmental hazard, or the building does not have an adequate water supply and the building is surrounded by public ways or yards not less than 60 feet in width on all sides.

Subp. 7. Reporting. All municipalities shall submit a copy of the adopted ordinance to the Building Codes and Standards Division within 15 days of adoption.

Subpart 1. General. This part authorizes optional provisions which are adopted by a municipality in addition to the state building code, for the installation of on-premises fire suppression systems in new buildings, buildings increased in floor area, and buildings which have the occupancy classification changed.

Subp. 2. Municipal option. The sprinkler system requirements of this chapter when adopted with the selection of either item " 5a", " 5b" or "5c", become part of the state building code. When adopted, the requirements are applicable throughout the municipality without future change for new buildings, buildings increased in floor area including the existing building, and buildings which will have the occupancy classification changed.

Subp. 3. Requirements. Automatic sprinkler systems must be installed and maintained operational within the structures of the occupancy classifications listed in items 1 through 5. For purposes of this chapter separation walls do not establish separate buildings. The square footage requirements stated in the following items are based on the gross square footage of the entire building and establish the threshold where the provisions apply, except for minor additions that do not increase the occupant load or significantly increase the fire load. Basements areas less than required under items 1 – 5 are exempt as stated in the state building code.

1. Group A-1, A-2, A-2.1, and A-3 occupancies.

2. Groups B, F, H-4, M and S occupancies with 2,000 or more square feet of floor area or three or more stories in height and all basements in these occupancies exceeding 2,000 square feet in size.

3. Group E-1 and E-2 occupancies with 2,000 or more square feet of floor area or two or more stories in height.

4. Group E-3 occupancies with an occupant load of 30 or more.

5a. Group R occupancies.

5b. All R occupancies except 1and 2 family dwellings.

5c. All R occupancies except 1 – 4 family dwellings less than 8,500 square feet of floor area including attached garages.

Exception to 5a, 5b, or 5c.

Regardless of which option (5a, 5b, or 5c) that a municipality adopts, additions to "R" occupancy buildings are not required to be sprinklered.

Subp. 4. Standard Automatic sprinkler systems must comply with the applicable standard referenced in the state building code. When a public water supply is not available, an alternate on-site source of water can be used if it meets the approval of the building official and fire chief. When an adequate alternate water supply for hose stream requirements is provided or available, the building official and fire chief may permit the water supply requirements for the hose stream demands to be modified.

Subp. 5. Substitute construction. The installation of an automatic sprinkler system, as required by this chapter, does not preclude the substitution of one-hour fire-resistive construction as permitted in UBC Section 508.

Subp. 6. Exemption. The building official, with the concurrence of the fire official, is allowed to waive the requirements of this section when the application of water has been demonstrated to constitute a serious life, fire or environmental hazard or the building does not have an adequate water supply and the building is surrounded by public ways or yards not less than 60 feet in width on all sides.

Subp. 7. Reporting. All municipalities shall submit a copy of the adopted ordinance to the Building Codes and Standards Division within 15 days of adoption.