ESP Low-E™ Housewrap is just what builders have been looking for. A housewrap that does more than simply stop drafts. A pure aluminum facing is heat bonded to one or both sides of closed cell polyethylene foam, then the product is pin perforated. This results in a housewrap that acts not only as a superior air infiltration barrier, effectively sealing up cracks or gaps in the external sheathing, but it also adds insulation to the exterior of the home blocking up to 97% of radiant heat. This results in better year round efficiency and comfort levels. Also unlike other housewraps or insulating products that are traditionally used, Low-E™ Housewrap is totally non-toxic, and its performance is not affected by initial exposure to the elements. This product is available in 4' x 125' rolls that weigh only about 20lbs, 5’ product is available through special order. Installation is a breeze, using only a staple gun and razor knife.