Skip to main content

Roofing Membranes and Primer

Reinforcing membrane rolls in polyester, fiberglass and cotton for built-up and cold-process roofing, in widths from 4 to 36 inches by 300 feet, with the asphalt primer that goes down first and the emergency roof patch for the leak that cannot wait. Width and material are in the name; rolls are sold by the case.

In this category

3 products from C&R.

Brands in this category: C&R (3)

Guides for roofing membranes and primer

What is the difference between roof cement and roof sealant, and is asphalt primer necessary? Plastic roof cement (ASTM D4586), wet-surface cement, asphalt primer (ASTM D41), how long cement lasts, patching a leak, and getting tar off tools and hands · What is a roofing torch, and how does torch-down roofing work? Propane roofing torches and weed burners, yellow vs blue flame, the hottest point, modified bitumen cap and base sheets, how torch-down is removed, and the hot-work rules

Roofing Membranes and Primer questions

What is the difference between roof sealant and roof cement? Cement is a thick trowel-grade asphalt mastic for bedding, filling and fabric patches; sealant is a gun-grade bead for seams and fastener heads. More in the guide: What is the difference between roof cement and roof sealant, and is asphalt primer necessary? Plastic roof cement (ASTM D4586), wet-surface cement, asphalt primer (ASTM D41), how long cement lasts, patching a leak, and getting tar off tools and hands

Is asphalt primer necessary? On concrete, masonry, old roofing and weathered metal, yes; on clean new asphalt, no. More in the guide: What is the difference between roof cement and roof sealant, and is asphalt primer necessary? Plastic roof cement (ASTM D4586), wet-surface cement, asphalt primer (ASTM D41), how long cement lasts, patching a leak, and getting tar off tools and hands

C&R series

How to buyCard, purchase order or invoice terms; quotes on request; agencies and institutions welcome.
Live Service & SupportReal people who know the products, Monday to Friday 7:30am to 4pm Pacific. 925-215-7337
We DeliverWe ship nationwide. Parcel and LTL freight to job sites and businesses across the U.S.