What is this stuff?

[AHI in AR]

Low-slope roofs are very rare around here, so I don't see too many different materials. This mess greeted me today. The white layer was a thin plastic which was peeling up around the edges in several places. Underneath that was a black plastic-y layer, and there was an aluminized layer underneath that.

Sooooo...what is it?

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[Jim Morrison]

What is that? It's somebody's best shot at keeping water out of the house. Unfortunately, that somebody wasn't a decent roofer.

[kurt]

It looks like some strange blend of mod bit, aluminized 40 mil peel and stick, and a white acrylic top coating.

Regardless, it's crap, but you knew that.

[Charlie R]

See stuff like that all the time on the Baltimore row homes. They take every kind of roofing known (mod bit, roll goods) and tar it down, go over it every two years or so with aluminum paint-on or another tar (flood) coat. Use real caution walking on this kind of roof, you never know where they just went over a hole.

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