Roofing Manufacturers

A manufacturer's specification is a document, and the roof is evidence of whether it was followed. On a Manhattan roof, the evidence is in the fastener spacing at the perimeter, the overlap at a seam, the termination height at a parapet and the cover board under the membrane. A core cut and a hand check of those details say more about the system than the label on the roll.

Manufacturers publish the system categories we install and repair in Manhattan, NY: single-ply sheets, modified bitumen, built-up assemblies, metal panels and liquid-applied coatings. The relationship that matters to an owner is the one between the specification and the installed roof, and the file that proves it.