At a glance: Completed September 16, 2026: a full tear-off and replacement on Ascot Terrace, Florissant, MO. Shingle: OC Supreme. Size: 20.00 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
On Ascot Terrace in Florissant, MO (one of the largest cities in North County, with neighborhood after neighborhood of 1950s and 1960s ranch homes), the crew tore off and replaced a 20.00-square roof, right around the size of a typical single-story ranch. It was one of 5 roof replacements our crews completed in Florissant in September 2026. OC Supreme went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project record
| Location | Ascot Terrace (Florissant, MO 63033) |
|---|---|
| Completed | Wednesday, September 16, 2026 |
| Opened to completed | 82 days |
| Roof size | 20.00 squares (about 2,000 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Supreme |
| Underlayment | JBI Synthetic |
| Ice & water | Alco Ice & Water |
| Starter course | OC Starter |
| Hip & ridge | OC ProEdge Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL062626051 |
Choosing a color for your own roof? Browse every Owens Corning Supreme color on a whole-house preview in our OC Supreme color selector.
The roofing system on this house
Owens Corning Supreme is a traditional three-tab shingle, a flat, uniform look that suits smaller sections, outbuildings and homes that were originally built with three-tab. The shingle is only the top layer. Here’s the full system that went on this house:
- Synthetic underlayment over the whole deck. It’s stronger and more tear-resistant than felt, and it lies flat if weather rolls in during the tear-off.
- Self-sealing ice and water membrane where water concentrates. It seals around every nail driven through it, which matters in valleys and at the eaves.
- OC Starter strip along every edge. The first course is where wind gets under a roof. A factory starter with its own sealant line locks it down.
- OC ProEdge Hip & Ridge on the hips and peak. Matching cap shingles made for the job, not field shingles cut into pieces.
- Lomanco Omni Roll ridge vent. It runs along the peak and lets hot, damp attic air escape. That protects the decking and keeps shingles from baking from below.
The crew behind this roof
This was a St. Louis office job, installed by our own crew, not subcontracted out. The job was opened in our system on June 26, 2026 and the crew finished on September 16, 2026, 82 days later. Family-owned since 1947, we back every replacement with a lifetime workmanship warranty. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in Florissant?
Free inspection, documented slope by slope, no obligation. St. Louis office: 314-429-6000
Questions homeowners ask about this project
What shingle was installed on this Florissant roof?
Owens Corning OC Supreme, over synthetic underlayment across the full deck. The full system is in the project details table above.
Does John Beal Roofing work in Florissant, MO?
Yes. Florissant is served by our St. Louis office, and we've completed 21 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
How big was the roof on Ascot Terrace?
20.00 squares, or about 2,000 square feet of roof surface. A roofing square is 100 square feet. Roofs are measured and priced that way, not by the square footage of the floor plan.
What kind of ventilation went on this roof?
A Lomanco Omni Roll ridge vent along the peak. Paired with soffit intake, it lets hot, moist attic air escape.
Who do I call about a roof in Florissant?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.