It's this roofer's attempt at building something called a pitch pocket. Properly done, you construct a flashing well (or curb) around the awkwardly shaped penetration, then fill it with pourable sealant. This roofer's version is a nightmarish mockery of a pitch pocket though. If this roofer was dumb enough to do all the stupid stuff you can see, you can bet that he did other stupid stuff that you can't see. I wouldn't bet a dollar against that thing leaking tomorrow. - Jim Katen, Oregon A pitch pocket should not have several items penetrating that are so close together that the pitch or material used to seal cannot properly seal around each penetrating items. Pitch pocket's should be filled to overflowing. Wires or cables should not be tied around plumbing penetration. Patches applied are covering what appears to be the anchor points for the gutter straps (installed after the fact). Flat roof has some sloped it when a sloped is present. The runs of Sheet should be in a shingle like manner which are reversed in this case. I would ask the developers supervisor, what brand of roof this is and who the inspector was that issued the 10 year guarantee. It would be interesting to look at the inspector's report utilized to authorize a 10 year guarantee.
