The document provides definitions and descriptions of various construction materials and components. It describes what front end loaders, gypsum board, heat pumps, insulation types, lintels, mortar joints, oriented strand board, plumbing fixtures, plywood, radiant barriers, rebar, roof drainage components, roof materials, roof shapes, roof terms, stone types, vapor retarders, waterproofing, weep holes, welded wire fabric, and window types are and how they are used in construction.