On Jun 23, 7:12*am, Ben wrote:
I moved into my house not too long ago and had the first occasion to
want to go up to the roof yesterday. *It looks like there are three
layers of shingles. *I've read that you should never have more than
two layers of shingles because of the weight. *How much should I worry
about this?

Thanks for your input,
-Ben

I'd go check with the local code officials and see what the code
says. In most places you are permitted to have 2 layers, but no
more. Also, in most places you need a building permit to put on new
shingles. Find out if one was taken out. If the answers to both of
those questions are no, then depending on the rest of the facts, like
the age of the roof, I'd seriously consider going after the seller ad
you could have a slam dunk case.