Gravel On Top Of Tpo Of Roof

Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes.

Gravel on top of tpo of roof.

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. 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. This acts as an adhesive when it cools. Rain was pooling in areas resulting in leaks rotted wood and damaged insulation.

This means that a tpo roof is as uv resistant and as heat resistant as epdm and as heat weldable. 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. On top of this was spread roofing tar and then about 7 tons of gravel as ballast.

We have been installing rubber roofs over gravel for over 20 years. Water damaged tar gravel roof. 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. Heat welded seams provide superior strength.

Gravel is an excellent fire. Some commercial single ply roofs are ballasted with gravel this report does not apply to these gravel roof advantages. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope. Smooth tpo fleece back tpo self adhered tpo tpo colors extreme tpo.

Every modified bitumen torch down roof comes with a 40 year warranty. Rubber roof installation over a gravel roof video showing how we do it. Tpo is touted to have the benefits of two of its direct competitors epdm and pvc roofs but without the drawbacks and extra costs. Their current built up roof or tar and gravel roof had sustained water damage.

Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. Tpo roofing systems 101. 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. We live in the mid atlantic region outside of washington dc.

Gaf tpo roofing membranes include.