Commercial Roof Replacement

We are one of the most experienced roofing contractors in the Spokane Metropolitan area and an active member of the Better Business Bureau for over a decade.

Spokane Roofing Company®’s commercial roofing services are unmatched for reliability and workmanship.

We use only the top quality single-ply roofing and metal roofing systems for commercial roof installation, recover and repair.


Watch as Spokane Roofing Company installs a 60-mil, thermoplastic polyolefin (TPO) single-ply, membrane roofing system on the new Spokane Tribe Casino in Airway Heights, WA.

Single-Ply Roofing Systems

Single-ply roofing systems typically appear on commercial flat roofs. Roofing materials include thermoplastic polyolefin (TPO), polyvinyl chloride (PVC), ethylene propylene diene monomer (EPDM) and ketone ethylene ester (KEE).

TPO Single Ply Roofing Systems (Manufacturer warranted)

TPO membrane roofing is the most prominent type of commercial flat roofing system. A 60 mil, single-ply, TPO membrane roofing system is the recommended replacement for hot tar, hot mop, built-up roofing (BUR) and torch down commercial roofs. Learn more about fiberglass-reinforced TPO in our Buyer’s Guide for building owners, managers, public works administrators and architects.

PVC Membrane Roofing Systems

PVC’s installation process is similar to TPO, although, PVC roofing holds up better to chemical abuse than does TPO on low-slope roofs.


The popularity of EPDM for new construction has declined with the rise of TPO and PVC roofs. We still encounter it on public works and EPDM rubber roof recover projects.


FiberTite® sets the performance standard with its use of Elvaloy® KEE in roofing membranes. KEE is a solid, flexible, durable ingredient ideal in the manufacture of high-quality, long-lasting single-ply roofing. A recent KEE roofing project and our FiberTite Roofing Approved Applicator announcement are:

Metal Roofing Systems

Metal roofs are a unique alternative to single-ply roofing systems. Options include standing seam metal roof systems in a variety of colors and finishes.

Modified BITUMEN & Built-Up Roofing

While Spokane Roofing does not install Modified Bitumen & Built-up Roofing, our technicians are experts at servicing these longstanding roof systems. Modified Bitumen is an asphalt-based system with two layers; a base sheet that is self-adhered to the substrate and a cap sheet that is torched down, self-adhered, or cold-adhered. Built-up roofing, also called BUR roof systems or tar and gravel, are one of the oldest in the roofing industry. They are made up of layers of felt and bitumen that provide ample protection. They are often covered with gravel, coatings, or a sheet cap. The golden rule of roofing is that more is better, although it is far more expensive than the industry leader single-ply roof systems.

Roof Coatings

Spokane Roofing uses roof coatings to extend the lives of existing metal roof systems. To seal leaks around grommets, SRC applies Henry® and Karnak® aluminum roof coatings, or GAF Topcoat, a fluid-based rubber system. When sealants are not enough, retrofitting a commercial metal roof with TPO is a cost-effective alternative to replacing the entire metal roof.

Steep Slope

Steep slope roofing usually refers to anything with a slope of 3:12 or more. The most popular, cost effective, and aesthetically pleasing steep sloped roof systems in the Pacific Northwest (PNW) are asphalt shingles and metal roof systems. Thanks to gravity, debris and water on a sloped roof tend to roll into gutters creating a low maintenance asset for building owners. We pride ourselves on our attention to detail and workmanship while using the utmost safety precautions to protect our roofers.

Existing Roof Recover, Replacement (Commercial ReRoof), Demolition and Asbestos Abatement

Recovering your roof often is the best option, because it leaves the existing roof in place, saving time and money. When your roof must be replaced, Spokane Roofing has the experience and expertise to do the job right. If asbestos were found, SRC is fully certified in Asbestos Abatement during the roof demolition process.

Insurance Work

Spokane Roofing Company works with local emergency response crews, typically Servpro® and ServiceMaster®, when same-day response is necessary. Insurance claims adjustors join with SRC and business owners in this process.

When routine maintenance and repairs are no longer an option to keep your roof watertight, a commercial reroof is the best way to get your roof back to excellent condition.

— Jeff Sitton

Spokane Roofing Company

Versico Roofing Systems
GAF Master Select Commercial Roofing Contractor

Commercial Roof Replacement Project Timeline

Spokane Roofing Company Commercial Roof Replacement Project Timeline – Often 4 To 6 Weeks

Blog Posts About Spokane Commercial Roof Replacement Services

Commercial Roof Replacement Frequently Asked Questions (FAQ)

Commercial Roof Replacement Frequently Asked Questions (FAQ)

How Long Will My Roof Last? Your commercial flat roof should last 15-20 years in our climate, with proper maintenance and preventative care. Some commercial roofing companies offer what they describe as 30-year and even 50-year commercial roofs. The fact is that roofs...

Homestead Townhouses HOA Roof Replacements

Homestead Townhouses HOA Roof Replacements

Nicole Sitton guest authors this article about a recently completed commercial reroofing project for Homestead Townhouses HOA in Liberty Lake, WA, a job with lots of moving parts. Spokane Roofing Company®, LLC did a complete roof tear off and replacement on all...

Newport Hospital Roof Replacement Overcomes

Newport Hospital Roof Replacement Overcomes

Obstacles to success are many in the commercial roofing business. The only way to overcome those obstacles is to do whatever it takes to make a job successful. The Newport Hospital roof replacement project in Newport, Washington illustrates this point. Spokane Roofing...

Our goal is to

maintain your roofing system to achieve maximum life

Our maintenance program we will help reduce the costs for roof repairs that will arise without proper upkeep.

Schedule a Free Commercial Roof Inspection

Make Spokane Roofing Company your first choice to repair, recover or replace your commercial roof.