Asphalt shingles have a top layer of granules that protect them from UV damage. These granules can shed for a variety of reasons and signal problems with your roof. When they shed, you may see granules around the foundation of your home or in your gutters. Here are some reasons for granule loss and what can be done about it.
Granule Loss On A New Roof
It can be normal to find granules in your gutters when you've had a new roof installed. This can be from natural shedding of the new roof or from shingles shedding from the old roof when the workers walked on the surface. Clean the granules out of the gutters and monitor the situation. The shedding should slow down significantly once the roof has settled, but if it doesn't, you'll want to let the roofer, someone from a place like Ray's Accurate Roofing, know. It's always possible that granule loss on a new roof could be due to a manufacturing defect or the way the roofing material was treated in storage. If the shingles are defective, you'll want them replaced as soon as possible.
Granule Loss From Storm Damage
Storms can accelerate granule loss, especially when hail is involved. If you see small dents in the asphalt along with a lot of granules in your gutters, it could be due to hail damage. Hail damage repairs will likely require a new roof since the shingles could be cracked or damaged on back of the dented areas.
Granule Loss From Walking On The Roof
When you walk on your roof, you knock granules off the shingles. Just walking around occasionally shouldn't do much harm, but if you have kids that climb out of an upper level window to hang out on the roof or if workers doing repair on a chimney or plumbing vents aren't careful, then there can be significant granule loss. The best way to repair patches of granule loss is by replacing the shingles in the affected area.
Granule Loss Due To Age
Your roof loses granules over its life due to weather exposure and age. This usually happens in a uniform manner, although one side of your house may have more granule loss than another due to orientation to the sun and wind. When large areas of granules disappear, your roof looks like it has bald spots. The best solution for this problem is to have a new roof installed.
While granule loss isn't always a sign of serious problems, it's never a good thing for your roof. Your roof ages faster and has an increased risk of leaking when it doesn't have a layer of granules to protect it. If your gutters are full of granules when you inspect or clean them, or if your roof looks bald in places, it's time to call a roofing contractor for an inspection and repairs.