2. Plywood Plywood is board formed through gluing together thin layers of wood, with the grains at right angles to each other. Veneer is a material formed from the gluing of a layer of finely grained wood on top of layers of inferior wood.
3. Radiant Barrier Radiant barrier is a reflective material that inhibits the transfer of heat by radiation, installed at the roof line/ceiling.
4. Rebar This is ½” rebar, thus called #4 rebar. The deformation pattern is rolled onto the rebar so that the concrete can grip the rebar.
5. Steep Roof Drainage Gutters catch rain water and lead it to a down spout which leads the water away from the building, preventing soil erosion and foundation damage. Both are usually made from vinyl or aluminum. The gutter is U-shaped while the downspout is tube-shaped. The splashblock is a concrete block that catches the water from the downspout to prevent erosion. Gutter Downspout Splashblock
6. Steep Roof Materials Underlayment is tar/asphalt-impregnated paper used as temporary weatherproofing and to block the infiltration of moisture through the roof. Clay Tile
7. Steep Roof Materials Cont. Stamped-Metal Shingles Shingles are small, light-weight units applied in overlapping layers; metal, wood, or asphalt.
8. Steep Roof Materials Cont. Metal Roofing Can be made of tin, aluminum, steel, copper, and alloys.
10. Steep Roof Terms Eave: The edge of the roof that runs horizontally across the façade, comprised of the rafter ends used to construct the roof. Fascia: Flat, horizontal band that runs the roof’s perimeter Soffit: The horizontal underside of a roof overhang. Rake: The pitched edge of a gable roof. Rakes may be close, or extend from the building to allow for an overhang.
11. Steep Roof Terms Cont. Ridge: The apex of a pitched roof Valley: A change in roof direction, where two planes meet at the bottom of their pitch to make a valley with two steep slopes running up and away from it No fascia
14. Vapor Retarder Vapor retarder is placed on the interior side of insulation in order to control the passage of moisture through the walls of a structure.
16. Weep Hole Weep holes are cavities in brick walls, created by rope laid in a joint during construction and later removed, or by leaving the mortar out of a head joint. They allow moisture that accumulates through the brick and mortar to flow out from behind the wall.
17. Windows Casement: This is a casement window as it is hinged on a vertical jamb. It is opened by a crank system This is a Double-Hung Window because both sashes are movable.
18. Windows Cont. This is an Awning Window as the sashes swing outward, hinged on the head jamb.
