A HIGH-STRENGTH Insulating Moisture Barrier for use below Heated Concrete Floors. An absolute moisture barrier, it keeps heat-robbing ground moisture away from the concrete.

Reduces downward heat loss by over 50%. Exceeds the requirements of most HVAC load calculation programs. Super-Strong 338 PSI Puncture Resistance. Will support over 6" of concrete plus floor loads indefinitely.

Total of Over 16 mil Extruded Polyethylene Film. Withstands rough handling by installers and finishers. Air-Encapsulating Vacuum Formed Bubbles. Results in a structure that will not delaminate. Laminated With 99% Pure Polished Aluminum. Adds a reflective benefit to the intrinsic R-value.

PET Coating Strengthens and Protects Foil Against Chemical Erosion. Tuff-Stuff can be laid with the foil side up or down, whichever is most convenient. 4' x 125' Roll.