What Is Granule Loss & What Does It Have to Do with Shingle Health?

Finding sandy grit in your gutters, along the roof line, or under downspouts? Your roof may be shedding the protective layer of ceramic-coated stone and slag on the surface of your shingles. While it is normal to lose some grit in the first few months after a new roof is installed, protracted or extensive granule loss is never normal and must be addressed right away to prevent further damage.
Dangers of High Attic Humidity: Roof Rot, Mold & More

High attic humidity rots out wooden decking, corrodes fasteners, and creates a breeding ground for mold. Once the wood and other materials get wet, they can swell and warp enough to push the shingles up away from your roof. Improving your ventilation and making attic checks a regular part of your maintenance plan can help you avoid disaster.