Vinyl over white Polystyrene foam

[Stephen P. Shockley]

I inspected a home today where the siding was originally asbestos cement shingle siding with what looks like white Polystyrene foam and vinyl over top. A couple of questions I have are as follows:

1 - Shouldn't there have been a house wrap between the foam board and the vinyl?

2 - With all of the concern today over asbestos exposure, I've read up on the risk of asbestos shingle siding. From what I can tell, there is no health threat with it being covered up with the vinyl and foam board. Can someone confirm this for me?

Thanks,

Steve

[Peter C. Russell]

Steve, the foam board is perforated and acts as a moisture barrier as well as a leveling plane to help with the installation of the vinyl siding.
As far as the asbestos siding there is no health hazard as long as it's not friable and encapsulated

[Stephen P. Shockley]

Peter,

Thank you for the answer.


Regards,

Steve