Gravel On Top Of Tpo Of Roof

We mechanically fastened thick expanded polystyrene insulation over the roof substrate.

Gravel on top of tpo of roof.

I really wanted to stay away from the torch down roof and was thus looking at tpo roof. The light gray shade provides reflective properties that will keep the roof and structure cooler in summer months but also warm in the winter due to the. Water damaged tar gravel roof. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.

Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope roofing system. Rain was pooling in areas resulting in leaks rotted wood and damaged insulation. The gravel embedded on the top coat of asphalt the flood coat protects the underlying layers from the elements including ultraviolet rays and natural threats like roof hail damage or heavy rains. Leaks happen where things penetrate the roof surface on flat areas where water ponds and when blisters crack open.

Various types of burs require a different type and weight of gravel depending on the underlying layers the structure of the building and the. Common tpo roofing problems like this see those materials pushed into the rubber membrane breaking or tearing it by creating holes in the rubber and insulation. Tpo is extremely resilient and flexible which allows it to be used successfully on many different roof types even residential flat roofs. The gravel also acts as a protective measure to prevent natural debris such as leaves from flowing towards and clogging the drains of the flat roof instead trapping them in place.

A built up roof of layers of paper and tar topped with gravel can last 10 20 years on flat roofs. I am looking to replace my old tar and gravel roof on a low slope 2 storey semi detach house. Any advice input would be greatly appreciated. We stripped out the water damaged materials of the old tar and gravel roof and installed a tough waterproof tpo roof thermoplastic polyolefin.

If you strictly compare tar gravel vs tpo then tpo is a far better choice. First you have much better thermal properties tpo being a cool roof which is essential in climate like new mexico. Modified bitumen roofs are a mix of asphalt and rubber with a layer of gravel embedded in the top layer of material during manufacture to provide uv protection. Heat welded seams provide superior strength.

Tpo also has several colour options dark and light. A flat roof still has an almost imperceptible slope to it to handle drainage of rain and snow. We installed tpo flashing to a tpo metal strip on the top center of the parapets. Then you have repairability finding and fixing a leak in tpo is much easier faster and cheaper than on t g roof.

Tar gravel to tpo re roof. We mechanically fastened tpo and weld ed the seams together.