Green Asbestos Siding
Asbestos cement siding is very brittle and can be easily chipped cracked or broken.
Green asbestos siding. Asbestos siding is composed of asbestos fibers mixed with portland cement. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. These two chemically similar minerals can be brown white green gray or transparent. When house siding begins to turn green it diminishes the exterior appearance of the home.
That cement was then pressed into siding shingles that came in a wide variety of sizes profiles and textures. And see asbestos cement siding for details about cement asbestos building siding its repair removal demolition or cover over. Weatherside fiber cement siding is the 1 and weatherside fiber cement siding is the 1 and only solution for replacing or repairing old asbestos siding shingles. The resulting product was very durable fire resistant and absorbed paint well.
The use of a pressure washer for maintenance can crack the siding and lead to moisture intrusion if the pressure setting is high enough. Asbestos cement can be dangerous if pulverized by sawing sanding breaking etc. Tremolite and actinolite are not used commercially but they can be found as contaminants in chrysotile asbestos vermiculite and talc. The epa asbestos web site contains general information on asbestos sources exposure and health effects what to do if you suspect asbestos training and laws and regulations.
Exposure to and breathing asbestos fibers can result in lung problems and cancer. It may have a grey dull green or white color. It s available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. It is very brittle and has a tendency to crack and break when nailed which can release asbestos fibers into both the air and ground.
Asbestos shingles are relatively strong but. It also occurs as a contaminant in chrysotile asbestos vermiculite and talc. Effective january 10 2019 inquiries and correspondence regarding new permit applications reporting and compliance matters related to sites in armstrong and indiana counties should be directed to dep s northwest regional office questions on permit applications under review as of january 9 2019 and pending enforcement matters for armstrong and indiana counties should. These stains occur naturally over time.
Let the siding dry then prime and paint with the best exterior latex you can find. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. Fortunately siding can be cleaned to remove not only green stains but other dirt and stains that may be taking over the homes exterior. Green stains on siding are usually the result of mold mildew algae or moss.