NFPA 1144-2002 Standard for Protection of Life and Property from Wildfire

NFPA 1144-2002 Standard for Protection of Life and Property from Wildfire. Chapter 6 Fuel Modification Area 6.1 General. When the Wildland Fire Risk and Hazard Mitiga- tion Plan requires establishment of a fuel modification area, the modifications shall extend at least 9.14 m (30 ft) from structures. 6.2 Fuels Modification/Treatment. 6.2.1* Ground fuels within the defined defensible space shall be treated or removed. 6.2.2 Live vegetation within the defensible space shall have dead material removed and shall be thinned and pruned. 6.2.3 Dead and/or downed fuels within the defensible space of buildings shall be removed or treated to maintain the fuel modification area. 6.2.4 Vegetation under trees within the fuel modification area shall be maintained at a height that will preclude ground fire from spreading in the tree crown. 6.2.5 The fuel modification plan shall include a maintenance element with the responsibility for maintenance defined. 6.3 Combustible Materials. 6.3.1 Propane tanks and other combustible liquids storage shall conform to NFPA 30, Flammable and Combustible Liquids Code, NFPA 58, Liquefied Petroleum Gas Code, and the Wildland Fire Risk and Hazard Mitigation Plan required in Section 4.4. 6.3.2 Other combustible materials shall be removed from the defensible space or stored in conformance with the fire pro- tection plan as approved by the AHJ (see4.4.1). 8.1 Construction in Wildland Areas. 8.1.1 General. 8.1.1.1 All buildings potentially threatened by wildland fire shall be designed, located, and constructed to comply with this standard and/or one ofthe model building standards. 8.1.1.2 In case ofconflict between the local building standard and this standard, the more stringent fire protection require- ments shall be utilized to mitigate the combustibility ofstruc- tures exposed to potential wildland fire. 8.1.2* Location. Buildings located closer than 9.14 m (30 ft) to a vegetated slope shall require special mitigation measures as determined by the AHJ. 8.2* Roof Design and Materials. 8.2.1 The requirements for roof covering assemblies shall be as follows: (1) Only roofcovering assemblies rated Class A, B, or C shall be used. (2) The specific class shall be consistent with the wildland fire risk and hazard severity assessment as determined by the AHJ. (SeeA.4.2.) 8.2.2* Vents shall be screened with a corrosion-resistant, non- combustible wire mesh with the mesh opening not to exceed nominal 6.3 mm ( 1 ⁄ 4 in.) in size. 8.2.3 Eaves shall be boxed in with 15.8 mm ( 5 ⁄ 8 in.) nominal sheathing or noncombustible materials.NFPA...