It s capable of resisting dirt bacteria algae and even debris build up.
Tpo vs built up roof.
The flexibility of the membrane makes it highly resistant to tears punctures and impact damage.
This flexibility also allows for a building s movement and setting without compromising the roof s performance.
Each system is designed to waterproof the roof and protect it from sun rain snow and more.
It s made up of 3 to 5 laminated layers hot tar and roofing felt.
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.
Single ply membrane vs built up roofing infographic.
These roof systems are commonly referred to.
The typical installation setup is on a fully adhered or mechanically attached system.
For over 100 years.
Dean logan january 4 2018.
Two of the commercial flat roof systems commonly found in the northeast are modified bitumen and thermoplastic polyolefin tpo.
This is due in part to the fact that the top layer of the material is laminated.
Built up roofing systems have been in use in the u s.
Built up roofing bur better known by their street name of tar gravel roofs bur is just that.
Some commercial and residential roofs use tar gravel or built up roof bur as a roofing solution.
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.
Tpo roofs are durable.
Modified bitumen roof vs tpo.
Tpo roofing is best known for its durability.
This prevent leaks mold and rot all of which can weaken the roofing structure and cause costly damage.
Resisting dirt bacteria algae and debris build up.
There are 3 main types of flat roofing systems.
Modified bitumen roofing has been around since the 1970s when it was developed to.
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.
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.
A built up roofing system is installed by alternating layers of bitumen and reinforced fabric.
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.
Let s look at both solutions.
If needed a base sheet can be fastened to the roof to create a flat and safe work space.
Pros and cons of built up roofing and single ply roofing system.
Built up roofing can last for more than 40 years if properly installed and maintained well.
