CSLB C-39 Roofing ContractorLow-Slope RoofingEasy
A sheet metal worker is installing edge metal at the perimeter of a low-slope built-up roof, designed to cover the felt plies at the roof edge and direct water away from the fascia. What is this component commonly called?
- ACant strip
- BGravel stop
- CReglet
- DTermination bar
Show answer & explanationAnswer & explanation
Correct answer: B. Gravel stop
A gravel stop is metal edge flashing installed at the perimeter of a BUR roof to retain aggregate surfacing, terminate the roofing felts, and direct water off the roof edge away from the building face.
Why the other options are wrong
- A. A cant strip is a triangular transition piece at vertical-to-horizontal junctions, not an edge component.
- C. A reglet is a slot cut into masonry to receive counterflashing, unrelated to the roof edge.
- D. A termination bar secures single-ply membrane edges, not BUR gravel surfacing.
Gravel Stop
Metal edge flashing at the perimeter of a built-up roof that retains gravel surfacing and terminates roofing felts while directing water away from the building.
- Installed at roof perimeter, not at walls
- Retains loose aggregate ballast
- Different from a fascia or drip edge on steep roofs
Memory trick: Stop the gravel, guide the water — gravel stop at the edge.