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
Oregon
Oregon asks more of a roof than almost anywhere in America — and asks differently depending on where you live. West of the Cascades, forty-plus inches of winter rain feed the moss that shortens the life of asphalt and cedar. On the coast, salt air corrodes steel at every cut edge. In the Columbia Gorge, sustained wind works loose anything that isn't mechanically locked down. Interlock's four-way interlocking aluminum answers all three climates with one system — no rust, nothing for moss to root into, wind uplift documented to 177.5 psf — and we've been installing it for Oregon homeowners from our Portland office since 1997. Interlock Metal Roofing (PNW) Inc. is the official and exclusive certified Interlock® installer across three states — Oregon, Washington and Idaho — licensed as Oregon CCB #130826, Washington #INTERMR75406 and Idaho General Contractor Registration #6181938. Find your county below: each page lists every community we serve.
★ 4.8 average from 602 verified Oregon reviews
Call our Portland office: (503) 966-2948 · Toll-free 1-866-733-5811
Service areas
15 counties, each with its own page: the communities we serve there, the ten-year climate figures for that area, and completed Interlock roofs nearby.
Cities where we have documented installs, photos and homeowner reviews to show you.
Oregon does not ask one thing of a roof. West of the Cascades the wet season runs long enough to keep a north slope damp most of the year, and moss — not weather — is what ends an asphalt roof. On the coast, salt-laden air works on fasteners and flashings every day, and gusts reach 91 mph in Clatsop County. Through the Columbia River Gorge, wind is the defining fact and Hood River crosses freezing and back 55 times a year. East of the mountains in Wasco County, annual rainfall drops to 18 inches and the moss argument stops applying altogether.
A contractor who gives you the same pitch in Astoria and The Dalles is not describing your roof. The county pages below carry the ten-year figures for each area — rain, snow, wind gusts and freeze-thaw days — because those are the numbers that decide how long a covering lasts, and they are the ones almost nobody puts in front of a homeowner.
Interlocking aluminum panels lock on all four sides with concealed fasteners, carry a 120 mph wind rating installed to manufacturer specification and a UL 2218 Class 4 impact rating verified via Intertek, and add about 0.7 lb per square foot. Class A Fire Rated Available as a complete assembly. The Guardian lifetime limited warranty covers you for as long as you own the home and transfers once.
Our work
Every pin is a real installed Interlock roof — location, system and install year. Browse the Oregon directory of completed projects, or explore the map below.
Gallery
Real homes, real installations — photographed after completion.

Eugene, OR
Musket Grey

St. Helens, OR
Black

Canby, OR
Deep Charcoal

Manzanita, OR
Black

Portland, OR
Black

Portland, OR
Black

Portland, OR
Deep Charcoal

Salem, OR
Copper Penny
Reviews
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
Maybe the best decision we’ve ever made. Looks incredible ! The roofers (Victor and Daniel) were pleasant and did an amazing job. They were kind and courteous and very tidy. Totally worth the expense. I would recommend them to anyone.
— Amy B., Myrtle Point, OR
I had a very good experience with Interlock. From the initial presentation to the installation, I was very impressed with the knowledge and thorough nature of each step. The finished product looks beautiful too! To know that I have a lifetime warranty on my 'forever home' is incredibly peace giving. If a company offers you a lifetime warranty on everything but the color (that warranty expires after 30 years), you know they will do all they can to make the finished product perfect! My ONLY reason for not giving 5 stars was that during the estimate, we were told we'd need to replace plywood due to mold. When it came time to actually install the plywood, they needed to double the amount required which increased our bid by over $2K. Obviously I wish the original estimate had been more accurate. That said, our attic now has the correct amount of ventilation, fresh plywood with no mold, protected skylights and solar tubes and a beautiful finished product. I'm very happy! If I could give 4.5 stars, I would!
— Shannon C., Salem, OR
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