Wildland-Urban Interface Code - FEMA.gov
1 – Wildland/Urban Interface Construction. Prioritizing fire-resistant. Construction Techniques. The risk of wildfire varies greatly and depends on local fuels, weather, and topography. The risk at a building site must be determined before the Figure 5. Concrete pavers over membrane (FEMA 55). Mortar-faced extruded polystyrene. Roof parapet. extruded polystyrene. Concrete pavers. Membrane. Polyisocyanurate insulation. Roof membrane. 5/8-inch gypsum board. Roof deck.