Flat Roof Gravel Stop Detail

It is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat.

Flat roof gravel stop detail.

The lapped joint on the horizontal flange is set in mastic or elastic sealant. The gravel stop system incorporates a standard 3 deep 90 roof flange that easily accepts stripped in membrane roofing products. Its main function is keep water and gravel from washing away from the edge of a building structure. This type of edge metal is designed for installation on flat rubber roofs with gravel.

Gravel stops are in general about 3 4 high and formed from copper sheet 8 to 10 feet long. Gravel stop the gravel stop provides an architectural visually attractive termination with a canted edge. Gravel stop edge metal is custom fabricated to any measurements and it usually measures 10 in length but can also be bent in 12 lengths. Membrane coated roof flange enables welding a separate skirt to both the flange and the installed roof membrane to provide a watertight seal.

The copper apron extends 4 onto the roof deck. The gravel stop system includes a continuous 22 ga steel cleat with roof flange for easier installation and proper location and is pre punched with slotted fastener holes. A version utilizing uncoated metal roof flanges is available for use in an epdm roofing system. The sheets are fastened to the roof deck by nails spaced 3 o c.

The ends are lapped 3 minimum. What is a gravel stop. A gravel stop is a metal edge that features an angled bend at the top. It features an angled bend at the top known as the gravel stop.

They combine to make a long lasting sturdy roofing system 1. This system easily incorporates sump and spill outs as required.