This prevent leaks mold and rot all of which can weaken the roofing structure and cause costly damage.
Tpo vs built up roof.
Dean logan january 4 2018.
These roof systems are commonly referred to.
Modified bitumen roof vs tpo.
There are 3 main types of flat roofing systems.
Tpo roofing is best known for its durability.
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.
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.
Tpo roofs are durable.
Built up roofing systems have been in use in the u s.
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.
For over 100 years.
This is due in part to the fact that the top layer of the material is laminated.
A built up roofing system is installed by alternating layers of bitumen and reinforced fabric.
Built up roofing can last for more than 40 years if properly installed and maintained well.
Modified bitumen roofing has been around since the 1970s when it was developed to.
Built up roof bur modified bitumen and single ply.
The flexibility of the membrane makes it highly resistant to tears punctures and impact damage.
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.
Two of the commercial flat roof systems commonly found in the northeast are modified bitumen and thermoplastic polyolefin tpo.
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.
Each system is designed to waterproof the roof and protect it from sun rain snow and more.
Resisting dirt bacteria algae and debris build up.
Pros and cons of built up roofing and single ply roofing system.
First let s define what a tar gravel or built up roof bur is.
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.
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 roofs have been in use for over.
Single ply membrane vs built up roofing infographic.
This flexibility also allows for a building s movement and setting without compromising the roof s performance.
The typical installation setup is on a fully adhered or mechanically attached system.
