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Shingle warranties usually range from 20 to 40 years, but problems caused by defects or workmanship usually occur in the few years following application. • AA Roofing's Guarantee of Performance is 5 years. We will stand behind our workmanship and service any valid complaint in a reasonable time. Your satisfaction is our highest priority. • Since we install products from several manufactures, it is important to carefully review the manufacturer’s warranty stipulations about proration. (Proration is the reduction of the manufacturer’s contribution to the homeowner for repairing or replacing defective shingles during the warranty period. Some products carrying a warranty that does not prorate during the first three to five years after installation.) • Make sure the warranty prorates on the current market cost of the replacement shingles (as opposed to the original cost of the defective shingles). • Examine the manufacturer’s stipulations on ventilation and warranty validation. Shingle roof system failure as the result of inadequate ventilation may cause the shingle warranty to become invalid. |