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ourzoo 08-17-2006 08:11 PM

Masonry Asbestos Shingles, how do I know?
I have a cape cod style house that was built in the 1950's. The house is mostly brick but has two shingle sided dormers as well as the shingle sided walls on the raised shed roof on the back of the house. The shingles are about 1' x 2' in size, are looking pretty shabby and out of alignment after 50 years, and don't hold paint well for those that are closest to the fiberglass roofing shingles. I'd like to pull these shingles off, Tyvek the area, and install foam backed vinyl siding. The total sided area is about 600 square feet. Is there some easy, inexpensive way of learning if these shingles are masonry asbestos? If they are, do I need to call in the asbestos abatement folks to have them removed?

Thanks for your comments.

r/Tom Beltsville, Md.

redline 08-18-2006 08:51 PM

Have them tested or just go over top with the new material.

ourzoo 08-20-2006 10:07 AM

Thanks Redline.

I sent a note to one local asbestos abatement shop and they have not yet replied.

I'd prefer not to leave the tiles up on the walls under the new siding. The previous owner had foam insulation injected in the walls from the outside, and over the years the foam has degraded and loosened. The foam installers removed tiles/shingles every 16", punched 5" holes in the 1" fiber board sheathing, filled the cavity then reinstalled the tile. As the insulation has aged, it's pulled away from the holes leaving a big old drafty house. I'l like to get the walls somewhat sealed with Tyvek then have the foam backed siding installed to bump up the insulation a bit and stop the draftiness.

Thanks, again.


Donedat 08-20-2006 03:56 PM

You should be able to have them tested yourself. There should be at least one chem lab near you that can test your stuff. Just clip of a nice sample and take it in. You should have results back fairly quick.

PS...I just looked through my major phone directory under "Laboratories-Testing" and found 13 possibilities meeting your need. You should have at least one lab that can help you.

the roofing god 08-26-2007 10:15 PM

In the 50`s they were asbesto`s,as the homeowner you`re actually allowed to remove them using the proper precautions,wear a good mask,wet the tiles,remove the nails w/out breaking the tiles,put them into a small tarp immediately and carry them down in manageable wrapped loads,you can probably dispose of them at your local hazardous waste collection center,you`re better to be rid of them!

Tscarborough 08-26-2007 10:32 PM

It doesn't matter if they are asbestos or not. Don't saw them, beat upon them or otherwise break them into dust. You can remove them using minimal protection and stack them for hazardous waste disposal. They are considered encapsulated asbestos, not free asbestos.

the roofing god 08-26-2007 10:37 PM

if installed in the 50`s,they can kick up a lot of dust anyway,usually we refer to encapsulated asbestos as asbestos closed into an area by foam insulation for example

the roofing god 08-27-2007 08:38 AM

I think you meant it`s not a friable form of asbestos

Big Bob 08-27-2007 08:57 AM

sounds like Asbestos siding. Check with local code folks for required removal procedure. As mentioned above this is non-friable ( ok as long as you wet down.. garden sprayer.. old cover alls toss them when your done..don't saw them and remove with care. Double bag 6 mil and label.. buy labels from asbestos guy or internet.

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