Asphalt shingle warranties come in different types and lengths, often including manufacturing warranties and workmanship guarantees. A manufacturing warranty covers defects like premature cracking or granule loss and typically ranges from 20 to 50 years. These warranties vary in how they handle prorated coverage, meaning the value decreases as the shingles age. It's important to understand what the warranty covers, such as whether it’s limited to replacement shingles or includes labor costs. Many asphalt shingle warranties require that the roof be installed according to manufacturer instructions and building codes. This means keeping the roof properly ventilated, using recommended underlayment, and performing regular maintenance like clearing debris. Small issues like missing granules or curling edges can often be spotted by visual inspections every year or after storms, which help catch problems early without involving a professional immediately.
When evaluating warranty options or potential issues, a safe DIY check involves scanning the roof for granule loss in gutters, shingle damage, and ensuring flashings remain intact. If you notice serious problems such as curling shingles over a wide area, large cracks, or water stains inside your home, it's time to call a roofer. A qualified contractor can inspect whether these issues are covered under warranty or if repair is needed due to installation or aging. When talking to a roofing professional, ask, “Is this shingle brand’s warranty fully transferable if I sell my home?” and “What conditions could void my warranty?” These questions clarify long-term coverage and help protect your investment. Always keep receipts, photos, and documentation handy to support any warranty claims.