Plys On Built Up Roof

Built up roofing also called bur is the most common roofing material used on low slope roofs.

Plys on built up roof.

Components of a bur system include the roof deck a vapor retarder insulation membrane and surfacing material. Built up roofing or bur is the most popular choice of roofing used on commercial industrial and institutional buildings. The reinforcing fabrics also are called roofing felts or ply sheets. These roofs have been used for well over a century and are made from multiple layers of reinforced fabric joined by a binding agent or bitumen each layer of fabric is known as a ply and higher numbers of plies are associated with more long lasting and durable roofs.

Whether you re an experienced commercial roofer a steep slope roofer thinking of adding low slope services or just like to learn from the best you ll want to join gaf senior commercial training specialists dave scott and wally brown dave amp. There are 3 main types of flat roofing systems. Meets the requirements of astm d 3909. Gentech roofing provides free roof inspection services.

Felts are produced in a standard width of 36 inches and metric width of about one meter. Book your free inspection now. Wally for the project kick off segment of the roofing it right miniseries on installing a commercial roof from start to finish. Glaskap is used as a cap sheet in a variety of built up roofing systems.

Built up roofing for an average commercial roof it will usually cost between per 5 50 8 50 square foot in materials and labor to install a typical built up roofing system. Built up roofs generally are considered to be fully adhered if applied directly to roof decks or insulation. This price range can change depending on the materials you choose. Call us at 905 270 6799 or complete this online form.

What is a 4 ply roofing system. This prevent leaks mold and rot all of which can weaken the roofing structure and cause costly damage. B u r roof membranes tar and gravel a 4 ply roofing system involves roofing felts that are typically four plies composed of layers of. Each system is designed to waterproof the roof and protect it from sun rain snow and more.

Bur is used on flat or low sloped roofs and consists of multiple layers of bitumen and ply sheets. Provide protection to the underlying bitumen and membrane and have a low maintenance cost. Roofing felts are reinforced with either glass fiber mats or organic mats. Asphalt coated fiber glass reinforcement mat.

Bur is preferred for low slope or flat roofs because it creates a continuous sealed surface. Low moisture excellent dimensional stability and resistance to rot make it an ideal replacement for organic cap sheets.