High-grade protective coatings and membrane barrier systems engineered for Pacific Northwest rainfall.
With an average of over 150 rainy days a year in King County, roofs that lose their water-shedding oils or granulated barrier become vulnerable to micro-leaks and rot. Specialized waterproofing treatments rejuvenate aging shingles, seal seams, and create a resilient barrier against standing moisture.
Whether you have a residential low-slope roof, cedar shake requiring breathable preservative oils, or flat torch-down membranes, our waterproofing treatments add 5 to 10+ years to your roof's working life at a fraction of full replacement cost.
Creates a continuous, seamless waterproof membrane over flat and low-slope roofs that resists ponding water and thermal expansion.
Reinforcing high-wear valleys, chimney aprons, and pipe boots with industrial-grade polyurethane waterproofing polymers.
Eco-friendly bio-oil treatments that penetrate dried asphalt shingles, restoring granule adhesion and flexibility.
Securing vulnerable transitional seams where roof planes meet siding or masonry walls.
Depending on the coating system and roof pitch, professional waterproofing typically lasts 5 to 10 years in the Pacific Northwest before recoating is recommended.
Waterproofing seals minor porous areas and micro-cracks, but structural punctures or damaged flashing should first be physically repaired before applying protective coatings.
Contact K-Roofing & Repair today for expert recommendations and estimates.
(000) 543-6546