CertainTeed's Flintlastic® Base 20 Sheet is manufactured on a durable, high quality fiber glass mat which receives a heavy coating of weathering grade, rubberized asphalt.
- Support Mat: Wet process fiber glass mat
- Surfacing: Mineral release agent
- Weight: 90 lbs. per roll
- Dimensions: 39 - 3/8" x 49' 6"
- Coverage: One and a half squares
- Thickness: 2.3mm (92 mils)
For additional technical resources please refer to the CertainTeed Commercial Roof Systems Manual or click on the Technical Information link located on the left navigation area.