Questions about roof care

Asphalt shingles commonly last 20 to 30 years, cedar 25 to 50 and metal 40 to 70. Shade, moss and care change those numbers.

Age near the end of its life, curling or missing shingles, a lot of granules in the gutters, a sagging deck, daylight or stains in the attic, failing flashing and heavy moss.

Black streaks are mostly algae and cosmetic. Moss lifts shingle edges and holds water. Clean gently, never with a pressure washer, and a zinc or copper strip slows regrowth.

Yes. A real inspection includes the underside of the deck, the insulation, any moisture and the airflow.

Balanced intake and exhaust keeps an attic cooler and drier. Poor ventilation causes moisture problems and can void some warranties.

It depends on the squares, the pitch, the material, the layers and the deck. The estimate page lists what moves the price, and you get the number in writing.

A full replacement usually does, and we ask the city for it when it applies. Repairs and care visits usually do not need one.

Most homes take one to three days. Large, steep, cedar or metal roofs take longer, and a wet week stretches any of them.

We take off only what we can dry in that day and cover what is open. If the weather turns, we make the roof watertight and come back.

Two or three, kept apart: the maker’s on the material, ours on the work, and the no-moss warranty on what we treat. The warranty page has the terms.

For a shingle maker, usually the maker’s life of the shingle for manufacturing defects, for as long as you own the home, and prorated after a first period. We do not use the word for our own work.

Check the registration number on the state’s contractor page, and ask for a local address and proof of insurance. Do not sign over any rights to a claim. You can call us, and we will look without pressure.