According to Ching Book moisture and thermal protection roofing materials provide the water resistant covering for a roof system. They range in form virtually continuous, impervious membranes to overlapping or interlocking pieces of shingles and tiles. They apply it or provide it to prevent water from leaking into a roof assembly and eventually the interior of a building. Also flashing must be installed along roof edges where roofs change slop. So wall flashing is installed to collect any moisture that may penetrate a wall and divert it to the outside through weep holes.  There is 5 basic types of flashing such as parapet , spandrel head sill and base course flashing. Refers to Ching’s Masonry veneer construction consists of a single wythe of masonry serving as a weather barrier and anchored but not bonded to a supporting structural frame. And the we have the thermal insulation which is the primary purpose of thermal insulation is to control the flow or trasfer of heat through the exterior assembliew of a building and thereby prevent excessive heat loss in cold seasons and heat gain in hot weather. As ching says we have 4 types of ventilation: one for the whole house, other for energy recovery, roof and attic and crawl space.