At a glance: Completed October 29, 2026: a full tear-off and replacement on Kehrs Mill Road, Chesterfield, MO. Shingle: OC Duration. Size: 89.00 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
A very large 89.00-square project, about 8,900 square feet of roof and several times the size of an average house on Kehrs Mill Road in Chesterfield, MO, a West County city of larger subdivision homes along the I-64 corridor. At 89.00 squares it was the first-largest of the 213 roof replacements we completed in October. OC Duration went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project record
| Location | Kehrs Mill Road (Chesterfield, MO 63005) |
|---|---|
| Completed | Thursday, October 29, 2026 |
| Opened to completed | 67 days |
| Roof size | 89.00 squares (about 8,900 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Duration |
| Underlayment | JBI Synthetic |
| Ice & water | Ice & water membrane |
| Starter course | Factory starter |
| Hip & ridge | Owens Corning Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL082326005 |
Want to see what OC Duration looks like on a whole house? Try every color in our OC Duration color selector.
The roofing system on this house
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. People shop for the shingle, but what’s underneath it and how the edges are finished decide how long the roof lasts. On this job:
- A full layer of synthetic underlayment. It’s the backup water barrier under the shingles, and it holds up to foot traffic and wind far better than paper felt.
- 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.
- Factory 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.
- Owens Corning Hip & Ridge cap. Pre-formed cap that seals the hips and ridge.
- 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
The crew came out of our St. Louis office. From the day the job was opened (August 23, 2026) to the day the crew finished (October 29, 2026) took 67 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 Chesterfield?
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 Chesterfield roof?
Owens Corning OC Duration, over synthetic underlayment across the full deck. The full system is in the project details table above.
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.
How big was the roof on Kehrs Mill Road?
89.00 squares, or about 8,900 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 Chesterfield, MO?
Yes. Chesterfield is served by our St. Louis office, and we've completed 25 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 Chesterfield?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.