New Chapter 7A Building Code Changes – Effective 7/1/21
Old WUI Code: Allowed non-combustible 1/8” mesh in the Gables, Foundation, Through Roof Vents.
NEW WUI CODE CHANGE: Must use ASTM E2886 Tested and Listed Vents for attic/roof ventilation, including Soffits, Eave, Gable, Foundation, and Through Roof Vents.
ASTM Tested vents resist 3 Elements: 1) Embers 2) Flames and 3) Radiant Heat. All three are critical during a wildfire. Traditional 1/8” mesh/louvered vents cannot pass the ASTM E2886 three-part test.
CAL FIRE/BML Vent Approved Listings can be found here:
- Make sure that the vents are actually listed on CAL Fire website
- Make sure the listing states “Rated to ASTM E2886”
- Make sure the vent is approved in all positions (Horizontal and Vertical)
- Make sure the vents are installed by qualified contractors
Brandguard Vents (patented design) offers 26 CAL Fire listed skus, that have been fully tested to all 3 parts of ASTM E2886 in both horizontal AND vertical positions. You can check them out at www.brandguardvents.com.