★★★★★
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
Multnomah County, OR
Metal Roofing in Multnomah County, Oregon
Multnomah County is where we live and work — our office is at 1355 NW Everett St in Portland, and the county's 96 communities from St. Johns to Troutdale hold more of our installs than anywhere else in Oregon. Portland's housing stock is exactly what aluminum interlocking shingles were made for: Craftsman bungalows and foursquares whose composition roofs grow moss on the north slope every winter. Smooth interlocked aluminum gives moss nothing to grip, sheds the valley's rain, and never needs the wash-and-treat cycle — under a warranty that outlives the mortgage.
★ 4.8 average from 602 verified Oregon reviews
Call our Portland office: (503) 966-2948 · Toll-free 1-866-733-5811
THE NUMBERS THIS ROOF HAS TO SURVIVE
Ten-year averages for Multnomah County: about 58 inches of rain and 19 inches of snow a year, a mean temperature near 53°F, gusts recorded to 72 mph, and roughly 36 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.
MOSS IS THE FAILURE MODE HERE, AND IT IS SLOW
58 inches of rain a year keeps a north slope damp from October to May, and that is all moss needs. It roots between asphalt granules, holds water against the mat, and lifts the edge of each tab as it grows. The roof does not fail in a storm — it fails quietly over fifteen years while somebody pays for washing and treatment every few seasons. Smooth interlocked aluminum gives moss nothing to grip.
THE HOUSING STOCK IS THE OTHER HALF
Multnomah County's older neighborhoods are Craftsman bungalows, foursquares and mid-century ranches — steep north slopes, deep eaves, dormers and valleys, and often a second layer of asphalt already up there. Profile matters on those rooflines: shingle, cedar shake and slate pressed in aluminum keep the character the architecture expects, in Alunar-coated colors warranted for 30 years.
FREEZE-THAW — 36 DAYS A YEAR, AND WHY CONCEALED FASTENERS MATTER
Freezing on its own does not damage a roof. Freezing and thawing does, and Multnomah County crosses that line roughly 36 times a year. Every cycle drives water into a seam, expands it, and reopens it slightly wider. Interlock carries no sealant beads doing the waterproofing and no exposed gaskets to age, so there is nothing for that cycle to work on.
Our work
Completed Interlock® roofs across Oregon
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
Interlock roofs installed across Oregon
Real homes, real installations — photographed after completion.
Portland, OR
Black
Portland, OR
Black
Portland, OR
Deep Charcoal
Portland, OR
Hunter Green
Portland, OR
Black
Portland, OR
Deep Charcoal
Gresham, OR
Deep Charcoal
Portland, OR
Copper Penny
Reviews
What Oregon homeowners say
★★★★★
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
Towns we serve in Multnomah County, OR
Alameda, Arbor Lodge, Ardenwald-Johnson Creek, Argay Terrace, Arlington Heights, Arnold Creek, Ashcreek, Beaumont-Wilshire, Boise, Brentwood-Darlington, Bridal Veil, Bridgeton, Bridlemile, Brooklyn, Buckman, Cathedral Park, Centennial, Collins View, Concordia, Corbett, Creston-Kenilworth, Crestwood, Cully, Dunthorpe, East Columbia, Eliot, Fairview, Far Southwest, Forest Park, Foster-Powell, Glenfair, Goose Hollow, Grant Park, Gresham, Hayden Island, Hayhurst, Hazelwood, Hillsdale, Homestead, Humboldt, Irvington, Kenton, Kerns, King, Larch Mountain, Laurelhurst, Lents, Linnton, Lloyd District, Madison South, Maplewood, Markham, Marshall Park, Maywood Park, Mill Park, Montavilla, Mt. Scott-Arleta, Mt. Tabor, Multnomah, North Tabor, Northwest District, Old Town Chinatown, Overlook, Parkrose, Parkrose Heights, Pearl District, Piedmont, Pleasant Valley, Portland, Portsmouth, Powellhurst-Gilbert, Reed, Richmond, Rose City Park, Roseway, Russell, Sabin, Sauvie Island, Sellwood-Moreland, South Burlingame, South Portland, South Tabor, Southwest Hills, St. Johns, Sullivan’s Gulch, Sunderland, Sunnyside, Sylvan-Highlands, Troutdale, University Park, Vernon, West Haven-Sylvan, Wood Village, Woodland Park, Woodlawn, Woodstock