This topic includes information related to built-up bituminous roofing installed during construction. Built-up bituminous roofing is the most common type of roofing material used on commercial roofs to keep rain water from entering a structure. Built-up bituminous roofing is an assembly of hot-applied or cold-applied waterproof coatings and layered sheets.

This topic includes information related to metal roof panels installed during construction. Metal roof panels are a manufactured product used in a variety of residential and commercial roofing applications. Metal roof panels are interlocking panels made from aluminum, copper, stainless steel or zinc coated steel material. They are available in a variety of styles; corrugated, standing seam, flat seamed, batten seam or V-beam. Depending on the quality of material used, metal roof panels may last 20 to more than 100 years.

This topic includes information related to water repellents used during construction. Water repellents resist moisture from penetrating exterior building surfaces such as masonry, concrete, stucco and other exterior siding materials. Water repellents are a fluid substance made from acrylic, silane, silicone, siloxane and stearate.

This topic includes information related to roof tiles installed during construction. Roof tiles are available in a variety of materials; clay, concrete, metal, mineral-fiber cement, plastic, and rubber. Roof tiles are available in a variety of colors and profiles. They are fastened to a roofs structure and depending on the manufacturer, may have a 50 year to lifetime warranty.

This topic includes information related to expansion control installed during construction. Expansion control assemblies are designed joints between similar or differing construction materials, that allow movement and absorb vibrations. Assemblies are a manufactured product that contains an expansion control frame, cover and gaskets.

This topic includes information related to roof pavers installed during construction. Roof pavers are installed over a low-slope or flat roofs. They are used to ballast a roof and provide a roof surface which able to be traversed by building occupants. Pavers are either pedestal mounted concrete tiles or rubber tiles with integral legs.

This topic includes information related to ridge vents installed during construction. Ridge vents are located at the peak of a steeped sloped roof. They are non-mechanical, baffled openings that when used in conjunction with soffit vents provide a path for rising warm, hot air to escape an attic.

This topic includes information related to hardboard siding installed during construction. Hardboard siding is an exterior cladding material, manufactured from wood fibers, wax and resins. Hardboard siding is available as either a board or sheet product in a variety of colors, with a smooth surface or wood grained texture. Care should be taken to properly prepare and install hardboard siding material in order to prevent potential moisture problems.

This topic includes information related to asphalt shingles installed during construction. Asphalt shingles are the most common type of roofing material used on residential roofs to keep rain water from entering a structure. Asphalt shingles with either organic or fiberglass material are available as a 3-tab or laminated layer shingle. They are fastened to a roof deck or sheathing and range in durability, depending on a manufacturers warranty, 20 to 50 years.