The list of approved products is provided in the building materials listing bml under the following.
California state fire marshal wui approved siding.
California building code chapter 7a requires building construction used in the exterior of buildings within wildland urban interface wui fire areas to be fire resistive construction.
Fire retardant treated wood shingles and shakes shall be approved and listed by the state fire marshal in accordance with section 208 c title 19 california code of regulations.
To date the california office of the state fire marshal has approved and listed multiple applications of lp s products for use in wui areas proving that wood based building materials can be part of a wui compliant solution.
The wui standards apply to new buildings of all occupancy types in sra areas in addition to the following.
All products published in this handbook have been reviewed and verified their compliance in accordance with the new 2007 cbc by sfm staff.
If the siding is made from timbers that are large enough to comply with the definition heavy timber then that siding complies.
The listing of wildland urban interface wui approved products was created to provide a directory of wui products that are in compliance with chapter 7a of the california building code and chapter r327 of the california residential code.
703a 5 3 surface treatment protection.
Lp smartside siding helps meet cal fire wui codes when paired with either gypsum board or lp flameblock fire rated.
Santa cruz county has amended the ca codes in regards to projects subject to wui additions and exterior alterations of existing buildings in all sra areas must comply with the exception of replacement siding not exceeding 100 sq.
Ft replacement of a broken window or glass door.
Building officials a readily list of compliance wui products the state fire marshal is publishing this wui products handbook.
Lumber products used as siding decking or soffits in exteriors must pass state mandated fire tests.
Building officials a readily list of compliance wui products the state fire marshal is publishing this wui products handbook.
The third way to comply is to pass the office of the state fire marshal standard sfm 12 7a 1 for exterior wall siding and sheathing.
A listing of most of the decking products that comply with the california requirements is maintained in a free online database called the building material listing bml formerly known as the wui product handbook and is maintained on the office of the state fire marshal osfm web site.
All products published in this book are approved by the sfm.
Only products submitted to the sfm and in compliance will be published.
For products to be used in the wildland urban interface wui there are some regulations that required building products to comply with specific standards.
