How Long Will An Asbestos Roof Last

There are at least three types of asbestos shingles.

How long will an asbestos roof last.

Asbestos cement in roofing. Asbestos cement roof tiles are usually square shaped and their color is a combination of grey and black. There is more information about asbestos roofs in the slate roof bible. The use of asbestos cement roof shingles was growing at a steady rate in the united states.

æ s ˈ b ɛ s t ə s or æ s ˈ b ɛ s t ɒ s is a term used to refer to six naturally occurring silicate minerals all are composed of long and thin fibrous crystals each fibre being composed of many microscopic fibrils that can be released into the atmosphere by abrasion and other processes. Let s break it down. How long do asbestos roofs last. They can last for more than 40 years and if undamaged they pose little risk of exposure.

Manufacturers used to make shingles that would last 40 years but those shingles were made using asbestos which is not used any longer. Contemporary roofing product manufacturers make reinforced fiber cement roofing shingles and other roofing products which look like perform similarly to and need to be installed similarly to the original corrugated asbestos cement sheet roofing but these new products are free of asbestos. Due to its fantastic thermal qualities and being extremely fire retardant it is not surprising that asbestos was extensively used in roofing and insulation in the 20 th century. The house is 60 years old could this be original.

This is one of the most common questions we get asked by clients as well as how much does it cost to replace a roof. Cement sheets are one of the most commonly used roofing products that the mineral is found in and there are still a large number of. Asbestos is an excellent electrical insulator and is highly heat. Neither question has an easy answer because both depend on a number of variables.

This type of roofing material can have various colors from different shades of grey to red green and even blue. How long do they last. It is not unreasonable to expect 100 years from a properly maintained asbestos roof. Do they need maintenance.

Hi the first floor of my house has large portion of it covered by asbestos cement it has been so for a few decades now. In the early 1920s american roofing material manufacturers johns mansville carey eternit and century were all offering at least one asbestos cement roofing shingle to their customers. The roof was in excellent condition for long but over the past few months there were a few incidents of tree branches falling on the roof during heavy winds causing small portions of the roof on the edges to break off.