Flat Roofing Systems
TPO, PVC, and Modified Bitumen flat roof installations and repairs with seam-heat welding for zero leak vulnerability in PNW weather.
Request Quote →We're putting the finishing touches on athroofing.com. In the meantime, our team is still available for emergency repairs, roof inspections, and free quotes β just give us a call.
From high-performance commercial & residential flat roof membranes (TPO/PVC/Torch-Down) to full tear-off roof replacements in Redmond, Bellevue & King County. Guaranteed craftsmanship & manufacturer warranties.
Get an official roof assessment & estimate within hours.
Flat roofs in Redmond and King County require specialized, zero-compromise waterproofing due to heavy rain accumulation and standing water risks. At ATH Roofing, we design and install engineered single-ply membrane and multi-ply modified bitumen systems designed to handle 30+ years of PNW downpours.
Energy Star white reflective single-ply membrane. Superior heat-welded seams prevent leaks and lower energy bills.
Chemical and grease resistant membrane perfect for commercial kitchens, modern flat homes, and low-slope roofs.
Dual-layer rubberized asphalt torch-welded for indestructible protection against water ponding.
Expert crickets and tapered insulation system installation to eliminate standing water on existing flat roofs.
100% leak-proof heat-welded installation with manufacturer NDL warranty.
From same-day emergency leak calls to gated community roof restorations and full commercial installations, ATH Roofing provides certified guaranteed solutions.
TPO, PVC, and Modified Bitumen flat roof installations and repairs with seam-heat welding for zero leak vulnerability in PNW weather.
Request Quote →Guaranteed same-day emergency leak response, active storm tarping, structural stabilization, and immediate crew callout.
Call Dispatch Now →Complete tear-off and replacement using premium CertainTeed, Malarkey, or GAF architectural shingles and standing seam metal roofing.
Learn More →Custom roofing design and engineering for new residential custom home builds, additions, and modern structures.
Learn More →Same-day high-resolution drone imaging and thermal infrared leak detection to identify trapped moisture before wood rot spreads.
Schedule Inspection →Same-day precision repair of active ceiling drips, compromised step flashing, missing shingles, and flat roof membrane punctures.
Fix A Leak →Severe wind damage restoration, tree limb puncture fixes, and step-by-step insurance adjuster representation and claim approval.
Insurance Assistance →Eco-friendly soft-wash moss treatment, pressure-free roof debris clearing, gutter flow clearing, and preventive seal coatings.
Schedule Clean →Replacing dry-rotted pipe collar boots, exhaust fans, ridge vents, and plumbing flashings to eliminate hidden attic leaks.
Replace Boots →Velux certified leak-proof skylight replacements, glass seal repairs, and energy-efficient natural light solar tube fittings.
Skylight Quote →Custom soldered lead and copper counter-flashing, step-flashing, cricket installation, and chimney mortar sealing.
Repair Chimney →Complete roof maintenance, single-ply re-roofs, and preventative inspections for retail malls, warehouses, and offices.
Commercial Quote →Specialized multi-unit residential roofing, architectural color matching, HOA compliance management, and private estate access care.
HOA Community Quote →Select your square footage and material to get instant rough budgeting figures for Redmond homes.
Includes complete tear-off, high-temperature ice & water shield, flashings, underlayment, site cleanup, and ATH quality guarantee.
Clear, verified answers regarding roof maintenance and local Redmond code standards.
Direct Answer: TPO (Thermoplastic Polyolefin) is ideal for Redmond WA homes and businesses because its seams are hot-air welded together, creating a monolithic seal stronger than the membrane itself. This eliminates standing water leaks caused by Redmond's ~38 inches of annual rain and moss growth.
Direct Answer: Our 24/7 rapid storm crew guarantees dispatch within 60 minutes anywhere in Redmond, Bellevue, Kirkland, Sammamish, and Woodinville. We immediately apply heavy-duty synthetic tarps to stop ceiling damage and protect property.
Direct Answer: In Western Washington, roofs should be inspected twice per yearβonce before fall rains begin and once after winter storms. Regular inspections spot tree-debris blockages, moss root intrusion, and cracked vent pipe boots early.
Serving Redmond, Bellevue, Kirkland, Sammamish, Woodinville, Mercer Island, Bothell, and Greater Seattle.
16612 NE 128th St, Redmond, WA 98052
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