A flat roof that ponds water is a flat roof with a problem. Standing water degrades membrane material, compresses insulation, and finds every weak point in the system. Gresham Roofing & Maintenance solves ponding with tapered insulation that creates positive drainage, minimum quarter-inch per foot slope to drains, scuppers, or roof edges.
Our Flat Roofing Process
Membrane Assessment
Before recommending repair, coating, or replacement, we inspect the entire flat roof system. Membrane condition, insulation integrity, and drainage patterns all factor into our recommendation.
System Recommendation
Your proposal includes membrane type, insulation R-value, drainage design, and warranty coverage. If multiple options make sense, we price all of them so you can compare and choose what fits your budget and goals.
Membrane Installation
Our flat roof crew installs per manufacturer specifications and NRCA guidelines. TPO seams hot-air welded and probe-tested. Modified bitumen torch-applied in two plies. EPDM fully adhered with proper lap adhesive. Tapered insulation installed to create positive drainage.
Completion & Warranty
Your flat roof gets a completion package: installation documentation, warranty certificates, drainage verification, and maintenance recommendations. We stand behind every flat roof we install in Gresham.
What Gresham Customers Say
"After getting several quotes, these guys stood out with their honesty and knowledge. No pressure, just straightforward advice and excellent workmanship."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
"Our neighbors recommended them and now we understand why. Meticulous attention to detail and they treated our home like it was their own."
Why Choose Gresham Roofing & Maintenance for Flat Roofing?
Specialized Flat Roof Crew
Flat roofing requires different skills and equipment than sloped roofing. Our flat roof crew does this work every week, hot-air welders, torch kits, and adhesive systems are their daily tools.
23+ Years Flat Roof Experience
Gresham Roofing & Maintenance has been installing and repairing flat roofs in Gresham for 23 years. Residential flat sections, commercial buildings, and everything in between.
Drainage Solutions
We solve ponding water with tapered insulation systems. Minimum quarter-inch per foot slope to drains or edges. Ponding is the number one flat roof killer. We eliminate it.
Maintenance Programs
Semi-annual flat roof inspections keep your warranty valid and catch problems early. Drain clearing, seam checks, and flashing inspection, all documented.
About Our Gresham Flat Roofing Services
TPO is our most-installed flat roof membrane. White reflective surface reduces cooling costs, hot-air welded seams create a watertight bond stronger than the membrane itself, and manufacturer warranties run 15-20 years. We install 60-mil and 80-mil TPO, fully adhered or mechanically attached over polyiso insulation.
Call (877) 349-1553 for a free flat roof assessment. We inspect the membrane, seams, flashings, drains, and overall condition. Core samples check the insulation for moisture. You get an honest recommendation and a written estimate.