At a glance: Completed September 29, 2026: a full tear-off and replacement on South Laclede Station Road, Affton, MO. Shingle: OC Duration. Size: 39.00 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
Our crew finished a large 39.00-square roof covering about 3,900 square feet on South Laclede Station Road in Affton, MO on Tuesday, September 29. Affton is an unincorporated South County community just past the city limits. It was our only Affton roof of September. The system: synthetic underlayment across the full deck, ice and water membrane in the valleys and at the eaves, and OC Duration on top.
Project record
| Location | South Laclede Station Road (Affton, MO 63123) |
|---|---|
| Completed | Tuesday, September 29, 2026 |
| Opened to completed | 92 days |
| Roof size | 39.00 squares (about 3,900 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| 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 | STL062926015 |
Choosing a color for your own roof? Browse every Owens Corning TruDefinition Duration color on a whole-house preview in our OC Duration color selector.
The roofing system on this house
The feature that defines Owens Corning Duration is SureNail Technology, a tough woven fabric band in the nailing zone that the fasteners go through for better hold. 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:
- 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 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. It runs along the peak and lets hot, damp attic air escape. That protects the decking and keeps shingles from baking from below.
Who installed it
John Beal Roofing crews out of our St. Louis office installed this roof. From the day the job was opened (June 29, 2026) to the day the crew finished (September 29, 2026) took 92 days. 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 Affton?
Free inspection, documented slope by slope, no obligation. St. Louis office: 314-429-6000
FAQ about this roof
What shingle was installed on this Affton roof?
Owens Corning OC Duration, over synthetic underlayment across the full deck. The full system is in the project details table above.
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.
How long did this project take from start to finish?
92 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 South Laclede Station Road?
39.00 squares, or about 3,900 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.
Who do I call about a roof in Affton?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.