Short Description

FR RU110

Synthetic Roofing Underlayment

FR RU110 Synthetic Roofing Underlayment 
FR RU110 is a highly engineered, mechanically attached, coated woven synthetic roofing underlayment for sloped roofs. Our durable and high strength design along with its fiber grip walking surface provides a considerable improvement over asphalt saturated felt. The fiber grip textured walking surface can also be chalked just like felt.

Homeowner’s Best Choice

No oil leaching – no hazardous material content

Lays flat and does not absorb water and wrinkle

Low temperature flexibility

Gone are the days of blow-offs and call backs! FR RU110 is 6 times stronger than #30 felt and therefore offers superior wind resistance and durability through heavy roof traffic and adverse weather conditions. Stay on track, take on more jobs and sleep assured your RU110 projects will remain intact and dried-in. FR RU110 will save you time and money with less material damage and fewer post-install repairs.
Unlike traditional asphalt saturated felts, FR RU110 can be used in extremely low temperatures without becoming stiff and difficult to unroll. It also does not dry out, crack, or leach oils in the heat like felt. FR RU110 is 100% synthetic and will not absorb water and wrinkle like felt. It lays flat and will remain 100% impervious to mold.
FR RU110 will continue to protect your long life primary roofing long after felt has turned to dust! Unlike felt, FR RU110 is also backed by a 20 year manufacturer’s limited warranty.
Professional’s Best Choice
- Safer for Installers… 
Specially designed surface helps provide excellent walkability for installers versus conventional felts or typical synthetic underlayments. 
- Deck-Side Coating…
Anti-skid back coating helps improve walkability, while also helping to keep the roll stationary during installation. 
- Stronger… 
Synthetic, non-woven construction provides at least 600% (i.e. 7 times) greater tear strength than standard #30 felt. (Trapezoidal tear strength testing per ASTM D4533)
- Faster Installation… 
42” wide roll provides 17% more coverage per course than traditional 36” wide felts 
- Lightweight… 
At 23.4 lbs / (10.6 kg) it’s approximately 60% lighter than a roll of #30 felt. 
- Flexible Application… 
Recommended for use with asphaltic shingle roof systems. May also be used with non-asphaltic systems, such as slate, wood, metal, or tile.
Product Specifications 
-Roll length: 286’ / 87 m
- Roll width: 42 in. (1.07 m)
-Roll weight: 23.4 lbs / 10.6 kg
- Approx. coverage: 10 squares (1,000 sq. ft. [92.9 m2]) per roll (Excludes laps)