Gravel On Top Of Tpo Of Roof

We have been installing rubber roofs over gravel for over 20 years. The gravel is embedded into the top coat of asphalt known as a flood coat which helps the gravel stay in place. There are two main types of burs or tar and gravel roofing systems modified bitumen roofs which are a mix of asphalt and rubber with a layer of gravel on top and ballast roofing which is a different style of larger gravel applied on top of a single ply roofing system.

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Their current built up roof or tar and gravel roof had sustained water damage.

Gravel on top of tpo of roof. This acts as an adhesive when it cools. On top of this was spread roofing tar and then about 7 tons of gravel as ballast. Smooth tpo fleece back tpo self adhered tpo tpo colors extreme tpo. Tpo roofing systems 101.

Water damaged tar gravel roof. All other roofing systems as in epdm rubber or tpo vinyl have to have a fiberboard base to protect against punctures. This means that a tpo roof is as uv resistant and as heat resistant as epdm and as heat weldable. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.

Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. Gravel is an excellent fire. The roof is 21 years old and we have experienced a slow leak that has caused damage and so we are trying to decide between repair and replacement. Some commercial single ply roofs are ballasted with gravel this report does not apply to these gravel roof advantages.

If you are looking to install a single ply roofing membrane that will be energy efficient and are evaluating your options consider tpo thermoplastic olefin roofing. Pea gravel crushed rock and decorative rock white quartz are often dispersed into a flood coat of hot asphalt and applied over the top of the roof membrane. Heat welded seams provide superior strength. A layer of gravel or small stones is applied on top of the final coating of asphalt to protect the roof from the elements including ultraviolet uv rays and hail.

Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes. Gaf tpo roofing membranes include. Rubber roof installation over a gravel roof video showing how we do it.

We live in the mid atlantic region outside of washington dc. Tpo is touted to have the benefits of two of its direct competitors epdm and pvc roofs but without the drawbacks and extra costs. Rain was pooling in areas resulting in leaks rotted wood and damaged insulation. Every modified bitumen torch down roof comes with a 40 year warranty.

We stripped out the water damaged materials of the old tar and gravel roof and installed a tough waterproof tpo roof thermoplastic polyolefin.