Multiple layers of roof

[David C. Macy]

Thanks for the replies,

I appreciate everyones professional opinions.

What is the proper method of installing asphalt over wood shake shingles?
Or did it need to be torn off?

[iniquette]

The painted cedar theory sells me a little more. I just can't imagine why anyone would put shingles over slate.

[Jeffrey R. Jonas]

Originally Posted by dmacy

Thanks for the replies,

I appreciate everyones professional opinions.

What is the proper method of installing asphalt over wood shake shingles?
Or did it need to be torn off?

Complete tear-off.

[David C. Macy]

Happens more than you would imagine, at least around here.

I will try to dig up a few pics later if I can find them.

[Jeffrey R. Jonas]

Originally Posted by iniquette

The painted cedar theory sells me a little more. I just can't imagine why anyone would put shingles over slate.

It's probably more work to try to attach to it, than it would be to just remove it.

[iniquette]

Originally Posted by jjonas

It's probably more work to try to attach to it, than it would be to just remove it.

That's how I see it. What a pain in the ***** that would be otherwise.

[Kenton H. Shepard, CMI]

David, in all these inspections, you're seeing the work of the same guy. During the time these homes were built, he was the guy who lived around there and who everyone hired to do their roofs.

It's not real good work whether it's slate or wood, and I can't tell which from the photos, but what you see in your photos is sidelaps. I'm betting its wood.

What you should be seeing in decent work with either wood or slate, in photographing them from the ground, is just the butt ends. You should not be seeing shingles overlapping shingles, which is what is visible in these photographs. In these photos, you see roofing materials graduating in size from right to left. If you were seeing the butt ends of slates or wood shingles, you'd see no taper. Poke 'em with your finger and you'll know whether they're stone or wood.