Tar And Gravel Roof Repair Lethbridge

Their use has decreased with the more effective modern materials.

Tar and gravel roof repair lethbridge.

Many residences are covered with a traditional tar and gravel roof system that has a life span of 15 25 years after which the stress of the heat and cold causes the tar to blister and crack allowing water to travel under the asphalt surface and leak through the roof deck below. After the tar and. Residential tar and gravel roofs. This ponded water also accelerates the deterioration of the asphalt roofing under the gravel.

Tar gravel roofs have been around for centuries. The gravel hides the surface of the roof and often creates a water dam that allows water to pond for long periods of time. The old system included layers of tar paper and hot asphalt with multiple applications to keep the water out. Flat and low slope gravel roofs are some of the most difficult roof systems to detect the location of roof leaks and then repair.

However with new technologies sbs or torch on roofs are now becoming more popular. They are composed of layers of perforated felt or fiberglass material with asphalt in between flooding the top with asphalt and applying gravel to the hot asphalt. Sbs roofs are more pliable and flexible they are resistent to the cold. Ten years ago the most commonly used roofing system in lethbridge on a low slope to flat roof was the tar and gravel system.

Tar gravel roof repair. Tar and gravel had a lifespan of approximately 20 years but warranties were very limited. Repairing a tar and gravel is of course best left to the professionals and since a properly maintained bur roofing system can last for decades chances are you will have to repair your roofing system at some point during its existence. Tar and gravel roofs are a proven roof system and were at one time the most popular way of doing flat roofs.