Roofs in East County take a beating that west-side roofs do not: sustained east wind, ice loading, and moss that grows back every winter. Post your roof once — age, symptoms, photos if you have them — and licensed Gresham roofers come back with scope and price you can actually compare.
A few lifted shingles after a windstorm is a repair. Widespread granule loss, curling edges, and daylight in the attic is a replacement. Overlays — a second layer over the first — cost less today and cost more later, because the next roofer has to remove both and cannot inspect the sheathing underneath. Most Gresham homes on their original 1980s roof are past the repair conversation.
Winter east wind coming down the Gorge hits Gresham, Troutdale, and Corbett harder than anywhere else in the metro, and it finds the edges first. Starter strip at eaves and rakes, correct nail placement and count, and properly fastened ridge caps are where a roof survives or peels. Ask a bidder how many nails per shingle they use and whether starter runs up the rakes.
Under the firs common in Powell Valley and around Gresham Butte, north slopes stay damp from October to June and moss takes hold. Pressure washing strips granules and shortens roof life. Gentle removal, zinc or copper strips at the ridge, and trimming overhanging limbs is the durable approach. Any roofer who leads with a pressure washer should be a no.
Compare underlayment type, ice and water shield at valleys and eaves, ventilation plan, flashing replacement versus reuse, and how sheathing repair is priced if rot turns up. Also compare warranties: manufacturer coverage on materials and the contractor's own workmanship term. A bid that is a single number with no line items is not really a bid.
Describe the project once and we match it with vetted local pros who actually do this work — you choose who to hire, or nobody at all.
Full replacements generally require a permit through City of Gresham Development Services; unincorporated addresses east of the city go through Multnomah County. Your roofer should pull it and schedule the inspection. Confirm active Oregon CCB registration and ask whether the crew doing the work is employed or subcontracted.
The higher ground around Gresham Butte and out toward Pleasant Valley picks up snow and freezing rain that never reaches the valley floor. Ice damming at cold eaves is the recurring result, and it is usually an attic ventilation and insulation problem as much as a roofing one. A roofer who only quotes shingles is solving half of it.
Gresham grew heavily through the 1970s, 80s, and 90s, and architectural asphalt in this climate commonly runs 20 to 30 years. That means whole streets reach end of life within a few years of each other, which tightens roofer availability every summer. Booking in late winter usually gets better scheduling and sometimes better pricing.
Architectural asphalt tear-off and replacement commonly runs about $6.50–$11 per square foot installed, so a typical 1,800 square foot roof surface often lands somewhere between $12,000 and $22,000. Steep pitch, multiple valleys, two-layer tear-off, skylight reflashing, and rotten sheathing all push that up. Repairs for isolated wind damage frequently run $400–$1,500. Ask specifically how per-sheet plywood replacement is priced, because that is where a low bid quietly grows.
Three bids, and only one explained the ventilation problem causing our ice damming. That crew got the job and the eaves have been dry since.
Lost a strip of ridge cap in an east wind event. Repaired within the week and they refastened the rest of the ridge while they were up there.
Full tear-off, four sheets of bad decking replaced at exactly the rate written in the bid, and they cut back the branches shading the north slope while they were here. No moss coming back so far.
Stains near chimneys, skylights, or where a wall meets the roof usually point to flashing rather than the field of the roof. A roofer can often confirm from the attic side. Flashing repairs are far cheaper than replacement, so it is worth diagnosing properly.
Sometimes, when a single storm event caused identifiable damage. Gradual wear and moss deterioration are not covered. Photograph the damage and the debris before anything gets cleaned up, and get an independent bid rather than relying on one adjuster estimate.
June through September gives the driest window and the best conditions for sealing. Crews will work in dry spells other months, but scheduling gets weather-dependent. Booking in February or March usually secures a good early-summer slot.
No. It comes off with the old roof. What matters is preventing regrowth afterward: ridge-line zinc, trimming branches back, and keeping gutters and valleys clear of needles so water and debris are not sitting on the shingles.
A standard Gresham single-family roof is usually two to three working days with a full crew, longer for complex rooflines or if sheathing repairs turn up. Expect a dumpster in your driveway and plan to move vehicles for the duration.
Share the roof's age, what you are seeing, and photos if you have them. Licensed Gresham-area roofers will send scoped estimates. Free to request, never any obligation.
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