Asbestos Siding And Asphalt Siding House

Asbestos house siding was used in many homes until the epa banned its use in new products in 1989.

Asbestos siding and asphalt siding house.

Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. If you suspect that your siding may contain asbestos there is no need for alarm. Installing vinyl siding will require disturbing the asbestos by nailing into it. Asbestos siding was essentially a cement siding product that asbestos fibers had been added to.

A brief history of asbestos cement siding. Unless asbestos siding is disturbed it doesn t pose a significant health hazard and does not need to be removed. The portland cement binds asbestos fibers into a hard mass. Both the epa and the vinyl siding institute recommend not disturbing asbestos if at all possible.

This article provides photographs of asphalt based siding products and discusses common defects observed in asphalt exterior building siding such as buckling splitting cracks odors and questions about the need for a vapor barrier behind asphalt siding and over building sheathing. Let the siding dry then prime and paint with the best exterior latex you can find. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.

This was done in order to add fireproofing and stability to cement siding so that it wouldn t crack or break as easily. While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding. Removing asbestos is often cost prohibitive for most people. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials.

Asbestos shingles are relatively strong but. This old house has asphalt siding the type that comes in panels that measure about 18 x 28 inches designed to look like several courses of brick. Some asphalt siding may contain asbestos in the asphalt impregnated felt backer or asbestos may also be in the asphalt impregnated paper tar paper or felt used as a house wrap under the siding. Alternatively if you leave the asbestos on your home you can safely seal the old siding underneath the new siding and because asbestos is an excellent insulator you will actually be adding to the energy efficiency of your home by leaving it on.

Nonfriable means they cannot be broken up by hand pressure.