Spring is the best time for commercial roof maintenance. Cleaning and repairing a roof twice a year — March and November are ideal — will help prevent premature roof failure.

Caring for a commercial building roof is more involved than simply cleaning a pitched residential roof. Flat membrane roofs typically require more maintenance than cleaning, although improved technology has transformed the industry for Spokane Roofing Company.

Previously, hot-tar built-up roofing needed a coating of reflective paint to prevent sun damage to the tar. Silvercoating every two years was the industry norm.

Commercial Roof Maintenance Has Changed

New membrane materials such as TPO and PVC roofing systems do not require a coating, resulting in significant cost savings for business owners.

Hot tar roofs (also known as hot mop roofs) is still out there, but not much in the Inland Northwest. We made a huge change in commercial applications about 20 years ago, when we began shifting from using EPDM rubber roofing membranes to using TPO.

There are still quite a few older hot-tar roofs, but we’re not installing new ones anymore. They’re not cost-effective, and liability is a big issue. Tar is flammable and might contain asbestos, requiring expensive removal and disposal procedures. – SRC owner Jeff Sitton

EPDM seams are glued together with adhesive, which can fail. Now, heat-welded TPO seams are both stronger and watertight.

Manufacturers have increasingly taken a scientific approach to the development of new roofing materials, says Sitton. Both commercial and residential customers are the winners.

Commercial Building Owners Call Now

Prevent big problems later by being proactive now. Call Spokane Roofing Company at (509) 838-8633 and save on a commercial roof maintenance program.

Last Modified: June 20, 2016