Great system, and a great team. Victor, Daniel, and Patrick were very professional and thorough during the installation. The roof looks and performs great.
— Jason F., Portland, OR
Clatsop County, OR
Clatsop County's towns are Oregon's oldest and its most weather-beaten — Astoria's Victorian hillsides, Seaside and Cannon Beach in the salt spray, Warrenton on the flats where north-coast storms arrive first. Recorded gusts here are the strongest on the Oregon coast. Steel roofing corrodes in this air; asphalt loses granules to it every winter. Aluminum does neither — no iron to oxidize, and panels locked on all four edges.
★ 4.8 average from 600 Oregon homeowner reviews
Oregon line: (503) 966-2948 · Toll-free 1-866-733-5811
Our job book records 63 completed Interlock® roofs in the Clatsop County towns listed on this page, the first in 1998, the most in Astoria, Seaside and Warrenton. We serve the county from our Portland office.
Ten-year averages for Clatsop County: about 72 inches of rain and 15 inches of snow a year, a mean temperature near 52°F, gusts recorded to 91 mph, and roughly 10 freeze-thaw days. The last two decide how long a roof covering lasts here, and they are the two figures almost nobody quotes a homeowner.
Clatsop County sits in the marine corrosion zone, and salt-laden air is relentless in a way a storm is not — it works on fasteners, flashings and any exposed steel every day of the year. Aluminum does not rust the way steel does. That is a property of the metal, not a coating that wears off, and on this coast it is the difference that matters most.
Wind damage is a covering problem, not a structural one — which is why it shows up as missing shingles rather than a failed roof. Asphalt depends on an adhesive strip holding a free tab edge down, and once one lifts its neighbors are exposed in turn. Every Interlock panel locks to its neighbors on all four sides with concealed fasteners, so there is no free edge for a gust to get under and no fastener head sitting out in the weather. Wind resistance is warranted to 120 mph installed to manufacturer specification.
That much annual rain keeps a north slope damp for most of the year, and damp is what moss needs. Asphalt granules give it something to root into; smooth interlocked aluminum does not. No granules to shed, no zinc strip to keep replacing, no wash-and-treat cycle to schedule.
Gallery
Real homes, photographed after completion, Clatsop County towns first.

Seaside, OR
Tudor Brown

Seaside, OR
Tudor Brown

Astoria, OR
Colonial Brown

Turner, OR
Deep Charcoal

Turner, OR
Deep Charcoal

Turner, OR
Deep Charcoal

Turner, OR
Deep Charcoal

Turner, OR
Deep Charcoal
Reviews
Great system, and a great team. Victor, Daniel, and Patrick were very professional and thorough during the installation. The roof looks and performs great.
— Jason F., Portland, OR
Worked with Patrick and his team to replace my roof, rain gutters & skylights. Couldn’t be happier with the results. Love the new roof.
— Ben Y., Portland, OR
Awesome! Professional crew from start to finish! Thank you Victor, Daniel, Anna, and Patrick! We love the results and the lifetime warranty!
— Constance J., Portland, OR
Our new Interlock Roof is beautiful. And our neighbors have noticed. The whole process was very professional from beginning to finish. Victor, Daniel and Patrick were incredibly efficient, courteous, knowledgeable, and hard-working. Would recommend highly.
— Connie A., Oregon City, OR
Our new Interlock Roof is beautiful. And our neighbors have noticed. The whole process was very professional from beginning to finish. Victor, Daniel and Patrick were incredibly efficient, courteous, knowledgeable, and hard-working. Would recommend highly.
— Connie A., Oregon City, OR
Crew was amazing, we had one main house roof and two porch roofs that needed to be done fast and before the rain and they handled it well! Our metal roof got finished in two days and they came back out again to clean up on the third day and wrap up everything. We highly recommend them and their service as everything turned out great! Edit: I forgot to mention, we worked with a few different people but I believe it was Patrick and his crew whom helped us
— Erika C., Wilsonville, OR
Oregon contractors must be licensed by the Construction Contractors Board. Interlock Metal Roofing (PNW) Inc. holds Oregon Construction Contractors Board (CCB) License #130826. Look up any roofer before you sign: Oregon CCB contractor search.
Older homes can have lead paint on trim, fascia and soffits, which roofing work can disturb. We hold the Oregon Lead-Based Paint Renovation (LBPR) Contractor License, LBPR-130826. What lead-safe roofing involves.
The manufacturer's Guardian Lifetime Limited Material Warranty covers the material and finish for the original purchaser while they own the home, transferable once. Workmanship is not part of it.
The consultation is free, on Zoom or at your home. We measure the roof, go through profiles and colors with you, and you get a written price. Call (503) 966-2948 or book a time.
Arch Cape, Astoria, Blind Slough, Burnside, Cannon Beach, Clatsop Plains, Elsie, Fort Stevens, Gearhart, Hammond, Jewell, Knappa, Lewis and Clark, Miles Crossing, Nehalem Junction, Olney, Seaside, Svensen, Tolovana Park, Walluski, Warrenton, Westport, Wickiup, Youngs River
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