Residential roofing FAQs

Gutters and downspouts carry roof runoff away from eaves, siding and the foundation. Learn how the drainage system works, which warning signs matter and when an inspection may be needed.

Roof flashing directs water away from chimneys, walls, valleys, vents and other vulnerable transitions. Learn how it works, common failure points and when repair may be needed.

Black streaks on an asphalt roof are commonly caused by blue-green algae, but stains can also resemble moss, lichen or material damage. Learn how to identify the likely cause and choose a roof-safe response.

Ice dams form when snow melts on a warmer section of the roof and refreezes near a colder edge. Learn what causes this cycle, the damage it can create and the steps that help reduce the risk.

Hail and high winds can dent, crack, lift or remove shingles and damage flashing, vents and gutters. Learn which signs to document safely and when a professional roof inspection should determine the next step.