Maximum Ventilation Most windows are operable and positioned to facilitate cross breezes. Most rooms have windows on two walls. High, centrally-located, operable windows enable hot air to move up and vent to the outside. The Right Exterior A Cool Shell and Attic A light colored paint, siding and roofing are used. A continuous vent strip runs underneath the roof overhang to let air into the attic.
Roof ridge has a continuous strip of venting or several passive vents close to the ridge.
Attic insulation does not block air flow path between roof overhang vents and ridge vents. Radiant barrier is especially effective when ductwork is in the attic. The insulation is at least 10 inches deep and evenly distributed. The wall insulation is a type that fills every nook and cranny, such as wet-blown cellulose. No skylights except solar tubes.