Tpo Vs Built Up Roof

A built up roofing system is installed by alternating layers of bitumen and reinforced fabric.

Tpo vs built up roof.

There are 3 main types of flat roofing systems. Built up roofing can include up to four plies or more consisting of alternating layers of bitumen asphalt coal tar or other adhesive with a topping aggregate layer of gravel or other materials. Note that tpo roofing employs a hot air gun to melt the membrane seams and stick them while epdm uses a seam tape for the purpose. Built up roofing the first layer can be adhered directly to the roof substrate.

Modified bitumen roofing has been around since the 1970s when it was developed to. Some commercial and residential roofs use tar gravel or built up roof bur as a roofing solution. This setup allows the white membrane to stay exposed throughout the roof s lifespan. The flexibility of the membrane makes it highly resistant to tears punctures and impact damage.

Modified bitumen roof vs tpo. For over 100 years. Let s look at both solutions. Built up roof bur modified bitumen and single ply.

Both solutions work on a little to no slope type of roof. It s capable of resisting dirt bacteria algae and even debris build up. Dean logan january 4 2018. Single ply membrane vs built up roofing infographic.

Tpo roofing is best known for its durability. First let s define what a tar gravel or built up roof bur is. This is due in part to the fact that the top layer of the material is laminated. It will usually cost between 3 50 to 7 50 per square foot for epdm and 3 50 to 6 50 per square foot for tpo including materials and labor warranty.

These roof systems are commonly referred to. Built up roofs have been in use for over. Tpo compounds have changed in recent years so it is impossible to say how long current roofs will last but a general estimate puts a tpo roof between 10 and 20 years. The typical installation setup is on a fully adhered or mechanically attached system.

Built up roofing systems have been in use in the u s. This flexibility also allows for a building s movement and setting without compromising the roof s performance. It s made up of 3 to 5 laminated layers hot tar and roofing felt. Built up roofing bur better known by their street name of tar gravel roofs bur is just that.

Each system is designed to waterproof the roof and protect it from sun rain snow and more. If needed a base sheet can be fastened to the roof to create a flat and safe work space. Two of the commercial flat roof systems commonly found in the northeast are modified bitumen and thermoplastic polyolefin tpo. Pros and cons of built up roofing and single ply roofing system.

This prevent leaks mold and rot all of which can weaken the roofing structure and cause costly damage.