Tyvek HomeWrap is a weatherization membrane that provides a protective layer under a home's siding and over the sheathing. The product is literally wrapped around a home — over the wood or foam sheathing. Then it is cut out around windows and doors, and finally taped at the seams. The unique, nonwoven-fiber structure of Tyvek HomeWrap resists air infiltration and water intrusion. But the product is engineered to readily allow moisture vapor to diffuse through the sheet, helping prevent mold and mildew buildup as well as wood rot. Circle
102In My Own Words
"When strong winds come up, you don't see Tyvek HomeWrap blowing off the house if it has been applied correctly. Tyvek is a competitive, quality product that lets the house breathe, but keeps out the wind. It also helps the R-value of products you're using in your house."