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Interstate Roofing proudly serving Portland, OR and Vancouver WA.

Why Is There Water in My Attic?

Sep 28, 2023

Why Is There Water in My Attic?

If there is a way for water to get into your attic, it will find its way in. Whether by seeping through attic roof vents or by dripping past a hole in the...

Can You Patch Roof Flashing?

Jul 28, 2023

Can You Patch Roof Flashing?

It may just be made up of a few strips of galvanized metal, but roof flashing is one of your home’s unsung heroes. It’s actually one of the most critical...

GAF One Roof

GAF One Roof Award

2015, 2017, 2019

This prestigious award recognizes our best contractors who support both GAF residential and commercial products and certification programs. They must be both a Master Elite® and a Master Select™ Contractor* and meet the annual program requirements for both certifications. These contractors certainly find GAF to be ”one source, one solution.”

GAF Well Roof

GAF Well Roof Award

2015, 2017, 2018, 2019

This is awarded contractors their for dedication to providing property owners with the best available warranty’s in the industry, specifically GAF’s WellRoof(R) Guarantee Extension, for customers to benefit from an annual inspection and preventative maintenance.

GAF Triple Excellence

GAF Triple Excellence Award

2015, 2017, 2018, 2019

The Triple Excellence Award recognizes Master Elite® Contractors that have distinguished themselves as the top performers in all three categories of warranty registrations, employee training, and quality installations. Recipients are considered to be among the best contractors in the roofing industry.

Presidents Club


2015, 2017, 2018, 2019

Winners of the prestigious Master Select™ Contractor President’s Club Award represent the best of the best and have distinguished themselves by meeting stringent requirements in the categories of Performance, Reliability, or Service.

Memberships & Accreditations