Skip to content 
If you are ready to talk through a Clayton TPO or flat roof project, we would love to walk your building, run a moisture scan, and put a real membrane spec and number in front of you. There is no charge for the inspection, and no pressure after.
Downtown Clayton’s office towers, condo blocks, and mid-rise low-slope buildings along Forsyth Boulevard and Central Avenue live or die on the strength of a TPO membrane’s heat-welded seams. When a 2024 hailstone bruises the field membrane, or the May 2025 EF3 tornado peels back parapet flashing, water finds the deck within hours and starts working on insulation. Top Quality Exteriors installs, restores, and maintains TPO and flat roofing systems for Clayton property managers, condo boards, and owner-occupants who need the roof to hold for twenty years, not five.
Every Clayton flat roof gets scoped to the building — 45, 60, or 80 mil membrane, mechanically fastened or fully adhered, with heat-welded seams probe-tested before the crew signs off. We fabricate custom parapet flashing, tie in scuppers and interior drains, and install walkway pads where HVAC crews service rooftop units on downtown Clayton mid-rises. If the flat section is only part of a mixed-slope job, our commercial roofing in Clayton team handles the transition to shingle or metal cleanly.
A downtown Clayton flat roof takes the same 81 hail reports and 2.25-inch stones the county logged in 2024 — plus the May 2025 EF3 tornado that damaged 5,000-plus Clayton buildings and lifted parapet flashing off condos along Forsyth Boulevard. Membrane choice matters, but installation detail matters more: mechanically fastened 60 mil TPO with three-inch heat-welded seams, six-inch termination bar at every parapet, and target-patch reinforcement at every scupper and drain. We tape the deck seams where fasteners tell the story, insulate to code with polyiso, and add walkway pads on every path from a hatch to a rooftop HVAC unit so service techs don’t wear the field membrane out early. Copper counterflashing on older brick parapets — common on the pre-war blocks near Wydown and Central — beats plain caulk for decades. When a storm chews through a section overnight, our storm damage roofing in Clayton crew dries it in before the next front rolls through.
Every Clayton TPO or flat roof project follows the same five checkpoints, so you always know who is on the roof, what is being heat-welded, and how the warranty and permit paperwork line up before we open a first roll of TPO membrane.
We walk your Clayton roof, sound the deck, and check every parapet, scupper, and welded seam. Moisture scans identify wet insulation below. A written report follows the same day.
We spec 45, 60, or 80 mil TPO to your building, plus insulation R-value and attachment method. Your itemized quote details tear-off, decking, and flashing. No lumped line items.
We pull the Clayton building permit and any architectural review needed. Rooftop equipment gets isolated and interior drains protected. Dumpster placement matches your block rules.
Old membrane is stripped, wet insulation removed, and polyiso relaid to code. TPO rolls out, seams get heat-welded, and parapets receive custom flashing. Walkway pads finish it.
Every heat-welded seam is probe-tested end to end before we pack up. You walk the roof with the foreman and get photo docs of the finished field. Warranty paperwork is handed over.
Top Quality Exteriors was founded in 2022 by Mario A. Granados, and the ownership team brings 7+ years of industry experience to every Clayton flat roof project. We are a BBB Accredited Business with an A+ rating, licensed in both Missouri and Illinois, and we carry full general liability and workers’ compensation coverage on every crew that steps onto a downtown Clayton rooftop. Our 52-plus person team lets us keep dedicated commercial TPO crews out.
On the material side, we are an Owens Corning Preferred Contractor for underlayment and accessory systems, and a James Hardie Alliance Program Member for the trim and gable work that ties into a mixed-slope Clayton building. Every flat roof carries a 36-month workmanship warranty as the firm baseline, with extended options up to Lifetime on selected product lines. When the May 2025 tornado hit, we ran emergency tarps on Clayton mid-rises the same night.
A Clayton TPO or flat roof project is priced by square footage, membrane thickness, insulation R-value, and attachment method. A typical downtown Clayton job runs $7,000 to $15,000, with 45 mil systems on the lower end and 80 mil fully adhered systems on the upper end. Add-ons like ballasted membranes, tapered polyiso for pond correction, and walkway pad networks factor in. Hearth and GreenSky financing is available for qualified building owners.
If your building took damage in the 2024 hail season or the May 2025 EF3 tornado, we meet the insurance adjuster on the roof with a moisture scan report and translate the scope into claim line items. Missouri gives building owners 12 months from the date of loss to file, and our documented scope is what turns partial payouts into a full roof replacement in Clayton. The city permit fee and any architectural review paperwork are handled in-house by our team.
Every credential we carry is a commitment to quality, safety, and your peace of mind — on every project, in every state we serve.
