Roof replacement built for heavy rainfall
Synthetic underlayment across the full deck, ice-and-water shield in every valley and around every penetration, and ridge-to-soffit ventilation so the attic dries between storms.
The south Sound is the wet end of our service area. Olympia and Tumwater roofs see more annual rainfall than Seattle, and moss growth to match — so ventilation and drainage details decide how long a roof lasts here.
Mon–Sat, 7am–6pm · 24/7 storm line
Thurston County collects roughly 50 inches of rain a year, noticeably more than the central Puget Sound.
Synthetic underlayment across the full deck, ice-and-water shield in every valley and around every penetration, and ridge-to-soffit ventilation so the attic dries between storms.
Under Douglas fir cover south of Olympia, moss is not cosmetic — it holds water against the shingle and rots the deck. We treat it, remove it by hand, and add zinc at the ridge.
Chimney and skylight flashing, pipe boots, valley failures, and gutter backups. We find the entry point rather than guessing and sealing.
We climb it, photograph it, and give you an itemized estimate — no pressure. Call (425) 783-9543 or email info@pacificcoastroofing.com.