At a glance: Completed June 2, 2026: a full tear-off and replacement on Wethersfield Drive, O'Fallon, MO. Shingle: OC Duration, color Storm Cloud. Size: 32.33 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
On Wethersfield Drive in O'Fallon, MO (a fast-growing St. Charles County city along I-70 and Highway K), the crew tore off and replaced a mid-size 32.33-square roof, roughly 3,233 square feet. It was one of 3 roof replacements our crews completed in O'Fallon in June 2026. OC Duration in Storm Cloud went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project details
| Location | Wethersfield Drive (O'Fallon, MO 63368) |
|---|---|
| Completed | Tuesday, June 2, 2026 |
| Opened to completed | 350 days |
| Roof size | 32.33 squares (about 3,233 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle color | Storm Cloud (as recorded on the work order) |
| Shingle | Owens Corning — OC Duration |
| 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 | STL061725003 |
The color on this roof
The work order lists the color as Storm Cloud. That name isn’t in our Owens Corning TruDefinition Duration color gallery, so we’re not showing a swatch that might be the wrong one. The image above is the shingle line itself. Your project manager can bring a full-size sample of any color out to your house. You can also browse every OC Duration color here.
The roofing system on this house
Duration is Owens Corning's best-known architectural shingle. The engineered, woven SureNail strip across the nailing line is what sets it apart: it gives nails a defined target and grip. Every one of our replacements is a system, not just shingles. On this roof, from the deck up:
- 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.
- Ice and water membrane at the eaves and in the valleys. This self-adhering layer goes where water backs up: behind ice dams at the eaves and where two slopes meet.
- 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. Continuous exhaust at the peak. Together with the soffit intake, it moves heat and moisture out of the attic.
The crew behind this roof
John Beal Roofing crews out of our St. Louis office installed this roof. The job was opened in our system on June 17, 2025 and the crew finished on June 2, 2026, 350 days later. We’ve been family-owned since 1947. We run our own crews, and every roof comes with our lifetime workmanship warranty on top of the manufacturer’s material coverage. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in O'Fallon?
Free inspection, documented slope by slope, no obligation. St. Louis office: 314-429-6000
Common questions about this job
What shingle was installed on this O'Fallon roof?
Owens Corning OC Duration in Storm Cloud, over synthetic underlayment across the full deck. The full system is in the project details table above.
How long did this project take from start to finish?
350 days from the day the job was opened to the day the crew finished. Most of that time is scheduling, material ordering and any insurance paperwork. The tear-off and install usually take a day or two on a house this size.
How big was the roof on Wethersfield Drive?
32.33 squares, or about 3,233 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.
Does John Beal Roofing work in O'Fallon, MO?
Yes. O'Fallon is served by our St. Louis office, and we've completed 5 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
Who do I call about a roof in O'Fallon?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.