As a Rainier, OR homeowner with Metal Shingles from Interlock Metal Roofing (PNW) Inc., I would flag the installation issues I’ve seen and recommend corrective work—especially since a supervisor never visited the worksite during work hours. Rainier’s long wet season and heavy fall/winter rainfall increase the risk of water intrusion, and the Pacific Northwest’s moist conditions encourage roof moss, so proper flashing, sealants, and on-site supervision are essential to protect metal shingles and fasteners.
— Howard B., Rainier, OR







