synthetic roofing underlayment is one kind of better underlayment with 4 layers construction. firm waterproof

Synthetic underlayment takes advantage of the latest fiber technology for tough construciton conditions, utilizing polypropylene in a four layer construcitons. Polypropylene is one of the strongest synthetic fibers. It is light weight, very strong and UV resistent. Ulike felt, Synthetic underlayment is recyclable polyolefin construciton doesn't expand or contract and is inert to mold growth. With walking surface, 6 month UV exposure and all temperature performance rating.

( function(){ var aBigImageSrc = [ 'http://i00.i.aliimg.com/photo/v0/341689104_1/roofing_synthetic_underlayment_with_high_quality.jpg' , 'http://i00.i.aliimg.com/photo/v0/341689104_2/roofing_synthetic_underlayment_with_high_quality.jpg' , 'http://i00.i.aliimg.com/photo/v0/341689104_3/roofing_synthetic_underlayment_with_high_quality.jpg' , 'http://i00.i.aliimg.com/photo/v0/341689104_4/roofing_synthetic_underlayment_with_high_quality.jpg' , 'http://i00.i.aliimg.com/photo/v0/341689104_5/roofing_synthetic_underlayment_with_high_quality.jpg' , 'http://i00.i.aliimg.com/photo/v0/341689104_6/roofing_synthetic_underlayment_with_high_quality.jpg' ]; var oProductShow = new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); roofing synthetic underlayment with high quality