DURA♦SKRIM® R20WW consists of outer layers of white high-strength virgin polyethylene film laminated together with a black layer of molten polyethylene. Both outer layers contain UV inhibitors and thermal stabilizers to assure long outdoor life. The white layers are designed to reduce heat buildup and condensation, and to provide excellent dimensional stability. A layer of polyester scrim reinforcement placed between these plies greatly enhances tear resistance and increases service life. DURA♦SKRIM® R20WWK is reinforced with a high strength scrim reinforcement laid in a diagonal pattern spaced 3/8” apart for uniform tear resistance in both machine and transverse directions with an additional machine direction scrim every 3” across the width for increased stability.