About Master Flow Lead Roof Flashing

The GAF Master Flow™ Lead Roof Flashing is used as a boot flashing around pipes existing through the roof.  Designed to adjust to roof pitches 3:12 and below, this versatile roof boot flashing can be molded to fit on shingle, clay or metal roofs. 2.5 lb, Federal Specifications QQ-L-171E Grade B and QQ-L-201F Grade B.

  Weight Carton Quantity Base Size Fits Pipe Diameters Overall Heights
LRF1.5 36 lb. (16.3 kg) 12 8.5" x 10.5" (216 mm x 267 mm) 1.5" (38 mm) 10.5" (267 mm)
LRF2 25 lb. (11.34 kg) 12 8.5" x 10.5" (216 mm x 267 mm)  2" (51 mm) 10.5" (267 mm)
LRF3 27 lb. (12.25 kg) 6 10.5" x 12" (267 mm x 305 mm) 3" (76 mm) 10.5" (267 mm)
LRF4 31 lb. (14.1 kg) 6 10.5" x 12" (267 mm x 305 mm) 4" (102 mm) 10.5" (267 mm)


Features & Benefits

Product availability is subject to change without notice. Not all products are available from all facilities.