This document provides information on various construction materials and components. It includes definitions and descriptions of items like air barrier paper, attic ventilation components, backhoes, batterboards, brick bonds and sizes, bulldozers, cladding types, concrete joints, concrete masonry units, decorative concrete blocks, doors and door components, electrical components, framing elements, front end loaders, heat pumps, insulation types, mortar joints, oriented strand board, plumbing fixtures, plywood, rebar, roof drainage components, roof materials, roof shapes, roof terminology, stone masonry, vapor retarders, weep holes, and window types.