UnderlaymentsRKW has two decades experience in manufacturing roof underlayments. RKW underlayment is a four-layer laminate comprising of an upper layer of low density polyethylene (LDPE), a second layer of high density polyethylene (HDPE) fabric, a third layer of LDPE and a base layer of a non-woven fabric which absorbs any condensation water. RKW underlayment is excellent for use with metal roofs and with roofs made of concrete and tile. The product is UV-stabilized and contains anti-ageing compounds and is guaranteed for 10 years. The universal properties for RKW underlayment are:
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