Home > Building > Hardening Homes Against Wildfire Building Posted on: February 11, 2013 Hardening Homes Against Wildfire By Ted Cushman 1. Protected Vents Unvented roofs are best. If vents are used, protect them with 1/8-inch metal hardware cloth to hold out windblown firebrands.2. Heatproof Windows Install dual-pane glazing. The outer pane may shatter from heat, but the inner pane will stay intact to keep embers out.3. Defensible Space Keep the area near the house clear of shrubbery, weeds, or litter. Clip, prune, and thin trees or plants in the yard. In the “wildland-urban interface,” houses need protection against wildfire’s triple threat: flying embers, flame spread, and radiant heat.