CertainTeed Diamond Deck Synthetic Underlayment

Description

The CertainTeed Diamond Deck Synthetic Underlayment is a high performance, polymer-based layer that is reinforced with gauze and is water-resistant. This underlayment layer is meant to be placed beneath asphalt roofing shingles, wood shingles and shakes, metal shingles and panels, concrete tile or slate. Compared to standard asphalt felt underlayment, Diamond Deck has remarkable dimensional stability that eliminates the possibility of hygro-expansion wrinkles. The standard asphalt felt underlayment can cause distasteful wrinkles on the finished roof, because it can become very wrinkled when it picks up moisture. Diamond Deck has an extra-large length and width for a speedy application, and it has a special top surface treatment that provides superb slip resistance, even when it is wet.
Features
Tested to a maximum UV resistance exposure duration of 180 days
Based on a tough woven polyolefin reinforcement laminated between layers of specially formulated UV-stabilized polymer films
Classified by UL to be a suitable underlayment for use in any UL Class A, B, or C fire rated shingle system
Provide a clean, dry and smooth deck surface by eliminating dust, dirt, loose nails and other objects
Excellent tear resistance - Durability, reduced puncture risk
Superior wet/dry traction - Work faster and safer
Cool gray surface color - More comfortable working environment
Specifications
Roll Length: 250 ft.
Roll Width: 4 ft.
Roll Coverage: 937.5 typical net sq. ft.
Roll Weight: 38 approx. lbs per roll
Roll Thickness: 12 mils