Composition Roof Replacement | Portland, Tigard & Lake Oswego
Composition Roof Replacement
Malarkey Shingles / SBS Modified Asphalt and Smog-Eating Granules Serving Portland, Tigard, Lake Oswego & surrounding areas

Do you need a certified Portland roofing contractor to evaluate your composition roof?
At Pacific West Roofing, we’ve been installing composition roof replacements the right way since 1980. Our crews are certified in Owens Corning, Malarkey and CertainTeed systems and trained to deliver long-lasting results using SBS-modified shingles, upgraded ventilation, and best practices.
Not sure if you need a full replacement? Contact us for a no-pressure evaluation—we’re here to help.
Composite Roof Replacement Benefits

Durability
Modern composition shingles are engineered to last 20–35 years. New SBS-modified technology rubberizes the asphalt, helping it hold onto granules longer and resist UV cracking.

Wind Resistance
Properly nailed and ventilated composition shingles can withstand winds up to 130 MPH—ideal for homes in exposed Portland-area locations.

Impact resistance
SBS-modified shingles can achieve Class 4 impact resistance—helping protect your roof from hail, tree limbs, and other debris.

Eco-Friendly
Many composite shingles are recyclable, though Portland’s local asphalt shingle recycling center is currently unavailable. Still, these roofs remain a greener choice than many alternatives.

Cost
Compared to slate or shake roofing, composition shingles offer excellent performance at a lower cost. Lightweight materials and easier installation also help reduce labor charges.
Why Pacific West Roofing?
- Certified installers for Malarkey & CertainTeed shingles
- BBB Accredited | WSRCA & ARC Board Members
- Safety-first teams trained in 21-point install protocol
- Over 45 years reroofing homes in Tigard, Beaverton, Oregon City & beyond
- Office staff ready to answer every question from start to finish

A new roof is one of the best investments you can make in your home.
Pacific West Roofing Blog

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