Limited 15 Year Warranty   Cantar/Polyair Corporation guarantees this insulation is manufactured to strict quality specifications and will withstand normal wear and tear. This warranty shall be effective for as long as you reside in your home and is made to the original residential insulation purchaser (warranty is not transferable.) The 15 YEAR warranty is limited solely to the repair of or the replacement of the insulation that proves to be defective either in materials or workmanship, at Cantar’s option. In order for the warranty to be effective, the product must be installed according to label instructions.