Eight months of rain a year is an unforgiving test for a roof, and the first sign of trouble is usually a ceiling stain that appears long after the failure started. Whether you need one flashing detail fixed or a full tear-off, describe the roof and licensed Hillsboro roofers will send you real numbers to compare.
Neighborhoods built through the late 1990s and early 2000s went up with 25- and 30-year architectural shingles, and the math has caught up. Granule loss in the gutters, curled edges on south and west exposures, and nail pops along the field are the signals. A roof at that age can often be nursed a few more winters, but a contractor should tell you honestly which side of the line yours is on rather than defaulting to replacement.
North-facing slopes shaded by the big firs and maples common in older Hillsboro yards grow moss that lifts shingle edges and holds moisture against the mat. Pressure washing destroys the shingle, so skip anyone who proposes it. The right treatment is gentle removal, a zinc or copper strip near the ridge, and a trimming plan for whatever is dropping shade and debris.
Open shingle field failures are rarer than people expect. What actually leaks is the penetrations: pipe boot gaskets that cracked around year twelve, step flashing at a wall-to-roof junction, skylight curbs, and the valleys where two planes dump water. A good inspection starts inside the attic looking for stain paths, then works out to the matching spot on the roof.
Architectural composition shingles cover the overwhelming majority of the housing stock and remain the sensible default. Standing seam metal costs meaningfully more but is a strong fit on the low-slope additions and shop buildings out on the acreage properties. Where a roof plane drops under a 2:12 pitch — common on porch covers and rear additions — shingles are not the answer and a membrane system is.
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.
Serious roofing in the Tualatin Valley happens between late spring and early fall, when there are enough consecutive dry days to open a roof safely. From November through March most crews are doing repairs and tarping rather than tear-offs. If you are planning a replacement, getting on a calendar in February for a July slot is how you avoid paying a rush premium in October.
Roof replacement requires a permit from the City of Hillsboro Building Division, or Washington County for addresses outside city limits, and the contractor must hold an active Oregon CCB registration. Many of the planned communities around Orenco Station and Witch Hazel also require HOA approval of shingle color and profile before work starts. Sorting that out first prevents a very expensive misunderstanding.
Tightly built modern homes here often have attics that were sealed well and vented poorly. The result is winter condensation on the underside of the sheathing that drips and stains exactly like a leak. Before agreeing to a replacement, ask whether the intake and exhaust ventilation was measured. Fixing airflow is far cheaper than a roof, and skipping it will shorten the new one.
Targeted repairs — a pipe boot, a section of step flashing, a handful of blown shingles — commonly run $350 to $1,200. Moss removal with treatment typically lands between $500 and $1,500 depending on pitch and access. Full tear-off and replacement in architectural composition on a typical Hillsboro two-story generally falls between $12,000 and $25,000, moving with square footage, pitch, number of planes, and how much sheathing turns out to be soft. Metal runs roughly double. Treat a bid far below that band as a warning: it usually means no permit, no underlayment upgrade, or a crew that will not be reachable in two years.
Stain on the bedroom ceiling turned out to be a cracked vent boot, not the whole roof. He fixed it for a few hundred dollars instead of selling me a tear-off.
Three bids in a week, all with the underlayment and ventilation spelled out. The crew tore off and dried in the same day and cleaned up better than I expected.
The shaded half of the roof was thick with moss and the attic had almost no intake venting. They cleaned it without a pressure washer, added vents at the eaves, and it has stayed clear through two winters.
Often, yes. If the shingles still lie flat, the granule loss is modest, and the leak traces to a single penetration or flashing, a repair buys real time. Once shingles are brittle enough to crack when lifted, patches stop holding and you are better off budgeting for replacement.
Composition roofs in this climate typically deliver 20 to 28 years. Constant damp shortens the low end, and shaded north slopes with moss age fastest. Roofs that get cleaned and have their flashing details maintained reliably reach the upper end of that range.
Wind and falling-limb damage is usually covered; wear, moss, and age are not. Photograph everything before any tarp goes up, get a written scope from the roofer, and file promptly. Be cautious with anyone who shows up uninvited after a storm offering to handle your claim.
Oregon code allows a second layer in limited situations, but it is rarely a good idea here. Layering hides rotten sheathing, adds weight, and shortens the life of the new shingles. Nearly every reputable Hillsboro roofer will quote a full tear-off.
Most single-family homes are done in two to four working days. Expect noise from early morning on, a dumpster in the driveway, and a magnet sweep for nails at the end. Move cars out of the garage and take anything fragile off the walls.
Describe the roof and what it is doing, and licensed Hillsboro roofers will respond with written scopes and pricing. No cost to post and no obligation to hire.
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