Health safety concerns related to the removal of asbestos containing roofs.
Non asbestos roof slates.
New homes built prior to 1970 s with asbestos roofs were lauded for the longevity of their roof systems as the roofs had a life expectancy of 30 50 years.
Cembrit fibercement slates are manufactured using portland cement together with a non asbestos formulation of superior blended synthetic and cellulose fibres.
When the use of asbestos became forbidden manufacturers rushed to replace asbestos containing products with cement based products reinforced with non asbestos materials.
Their color ranges between grey light green peachy orange and even purple.
The slates are pigmented during production and are fully compressed.
Asbestos and its hazards asbestos is a naturally occurring substance.
When you use slate hooks you don t have to drill the tiles or caulk anything.
Slate hooks work well for fastening replacement tiles in place.
The asbestos fibers inside slates can only be released when they are broken and this roofing material does not necessarily require removal although many people choose to do it.
A number of these products promising a life of 50 years or longer were found to fail early in their life in the 1990s.
Before the 1980s most artificial roofing slate was made from asbestos cement a material that had a long track record of successful performance.