How We Roof on the Hill
Our approach for South Hill starts with wind and water and works backward:
- Architectural shingles rated for 110–130 mph winds, with a six-nail fastening pattern as standard rather than an upgrade
- Ice and water membrane in every valley and around every chimney and skylight — the places bay-driven rain actually finds
- Full tear-off and deck inspection, because century-old skip sheathing and past patch jobs need eyes on them before new material goes down
- Zinc or copper ridge treatment to suppress the moss that thrives under the neighborhood's mature maples and cedars
Moss deserves its own mention. Shaded north slopes on South Hill grow it like a crop, and moss holds water against shingles, pries up their edges, and shortens roof life by years. We can treat and maintain an existing roof, or build moss resistance into a replacement with algae-resistant shingles and sacrificial metal at the ridges.
We also work clean on tight hillside lots. Steep driveways, terraced gardens, and close neighbors are normal conditions here, so we tarp thoroughly, magnet-sweep for nails daily, and keep the street passable — small things that matter a great deal on a narrow South Hill block.
A Quarter Century on Northwest Roofs
Alpine Exteriors has spent 25 years roofing in Whatcom County's weather, with over 2,000 completed exterior projects from Bellingham to the King County line. That track record is why we can put a 25-year workmanship warranty behind every roof we install: our flashing details, our fastening, our sealant work — covered, in writing, for as long as the shingles themselves are expected to last.
If your roof is pushing twenty years old, shedding granules into the gutters, or showing lifted tabs after the last big blow off the bay, get ahead of it before water finds the plaster in a 1912 living room. We provide free on-site estimates anywhere on South Hill — a full walk of the roof, photos of what we find, and an honest verdict on whether you need a repair, a tune-up, or a replacement.
