What kind of shingles R these???

[Jonathan Cartwright]

These shingles appear to be some type of particle board. They are weathered on top but the underneath surface looks exactly like the bottom surface of the drawers in my dresser. No evidence of leaking was found.

I saw a recent post about Woodruf shingles - could this be them. These don't appear as if they ever were made to look like shakes.

Thanks much.

Jonathan

[David Banks]

Jonathan. Looks like it could be woodruf.
Identifying Woodruf Roofing (http://www.kinsella.com/masonite/pictureswood.shtml)
Masonite Woodruf (http://www.masoniteclaims.com/woodruf2/index.htm)

[Jerry Peck]

Shouldn't those plumbing vent stack flashings be underneath those shingles?

In fact, those are not proper flashings for that use anyway.