At a glance: Completed May 11, 2026: a full tear-off and replacement on Avignon Drive, Saint Charles, MO. Shingle: OC Duration, color Peppercorn. Size: 15.00 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
A 15.00-square roof, right around the size of a typical single-story ranch on Avignon Drive in Saint Charles, MO, the St. Charles County seat on the Missouri River, where subdivisions run from 1970s split-levels to newer two-story builds. It was one of 5 roof replacements our crews completed in Saint Charles in May 2026. The system: synthetic underlayment across the full deck, ice and water membrane in the valleys and at the eaves, and OC Duration in Peppercorn on top.
Job specs
| Location | Avignon Drive (Saint Charles, MO 63303) |
|---|---|
| Completed | Monday, May 11, 2026 |
| Opened to completed | 24 days |
| Roof size | 15.00 squares (about 1,500 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle color | Peppercorn |
| 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 | STL041726002 |
See Peppercorn on a whole house, plus every other Owens Corning TruDefinition Duration color, in our Owens Corning TruDefinition Duration color selector.
About the color: Peppercorn
Peppercorn is part of the OC Duration color lineup. Keep in mind a swatch is a starting point. On the roof, the color shifts with the angle of the sun, the pitch and what’s around it. Peppercorn has been one of the more popular picks lately: it went on 5 of the roofs in this recent-projects set. Our project managers bring real samples to the house so you can see them next to your brick, siding and trim.
Materials installed, layer by layer
Owens Corning TruDefinition Duration uses SureNail Technology, a woven strip across the nailing zone that gives the fasteners something to grab and helps the shingle stay down in high wind. Every one of our replacements is a system, not just shingles. On this roof, from the deck up:
- Synthetic underlayment, edge to edge. It doesn’t wrinkle or tear like felt, and it keeps the deck dry if a shower pops up mid-job.
- Ice and water shield in the valleys and along the eaves. Those are the two places a Midwest roof takes on water first, from ice dams in January and heavy runoff in spring storms.
- OC Starter at the eaves and rakes. It’s a purpose-made starter strip with factory adhesive, not cut-up field shingles, so the edges stay sealed.
- OC ProEdge Hip & Ridge cap. Pre-formed cap that seals the hips and ridge.
- 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
The crew came out of our St. Louis office. From the day the job was opened (April 17, 2026) to the day the crew finished (May 11, 2026) took 24 days. John Beal Roofing has been family-run since 1947, and our lifetime workmanship warranty covers the installation for as long as you own the home. If a storm opens up a roof at 2 a.m., someone answers the phone. See 24/7 emergency service.
Need a roof in Saint Charles?
Free inspection, documented slope by slope, no obligation. St. Louis office: 314-429-6000
FAQ about this roof
What shingle was installed on this Saint Charles roof?
Owens Corning OC Duration in Peppercorn, over synthetic underlayment across the full deck. The full system is in the project details table above.
What color is the roof on Avignon Drive?
Peppercorn, from the OC Duration line. You can see it on a full house in our color selector.
How big was the roof on Avignon Drive?
15.00 squares, or about 1,500 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.
Was ice and water shield installed?
Yes. Alco Ice & Water membrane went in the valleys and along the eaves, the spots where water backs up or collects first.
Who do I call about a roof in Saint Charles?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.