TECHNICAL DATA • Weight...............................................................3 lbs. per Roll • Thickness.......................................................................1mm • Density...............................................................8# (+/-10%) • WVTR............................. 0.18 lbs/1000sqft/day per ASTM E96 • Compression Resistance@25%................................. 11.5 psi • Compression Resistance@50%................................. 23.5 psi • Compression Set@25%......