Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.
Asbestos siding insulation.
Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials.
However removing the asbestos siding first though more expensive is the best alternative in the long run.
Asbestos is an excellent electrical insulator and is highly heat.
Asbestos siding is very fragile in nature.
This type of siding should to be painted every 5 to 7 years so it s not a maintenance free material like vinyl siding.
If you suspect that your siding may contain asbestos there is no need for alarm.
Asbestos is a mineral fiber that in the past was used as a flame retardant strengthening agent that provided heat insulation.
Asbestos cement is a mixture of portland cement reinforced with asbestos fibers.
Asbestos siding was very popular product back in the 1950s and 1960s.
Interim method of the determination of asbestos in bulk insulation samples appendix e to subpart e of 40 cfr part 763 epa asbestos worker protection rule through the authority of section 6 of the toxic substances control act tsca the epa extended worker protection requirements to state and local government employees involved in asbestos.
If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you generally don t have to be concerned about asbestos.
The portland cement binds asbestos fibers into a hard mass.
The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation.
Loose fill insulation comes in a variety of materials.
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.
A brief history of asbestos cement siding.
Many houses still have asbestos siding on their exteriors.
While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.
But be sure to check your local building codes first to see if it is allowed in your area.
The average cost for asbestos removal is 20 to 65 per square foot with most homeowners spending between 1 212 and 2 821 complete whole home abatement for siding tile insulation ceilings attic roof and pipes can run anywhere from 15 000 to 48 000 setup and sealing off the area makes up about 60 of your final cost.
Applying a layer of sheathing or sheets of foam insulation over the asbestos then covering it with vinyl siding is a common practice.
