At a glance: John Beal Roofing replaced the roof on South Pam Avenue in Saint Charles, MO 63301, finishing September 12, 2026. 25.33 squares of Owens Corning OC Supreme, installed over synthetic underlayment across the full deck. Handled by our St. Louis office (314-429-6000).
On South Pam Avenue 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), the crew tore off and replaced a mid-size 25.33-square roof, roughly 2,533 square feet. It was one of 7 roof replacements our crews completed in Saint Charles in September 2026. The system: synthetic underlayment across the full deck, ice and water membrane in the valleys and at the eaves, and OC Supreme on top.
What the work order shows
| Location | South Pam Avenue (Saint Charles, MO 63301) |
|---|---|
| Completed | Saturday, September 12, 2026 |
| Opened to completed | 64 days |
| Roof size | 25.33 squares (about 2,533 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 | STL071026035 |
Want to see what OC Supreme looks like on a whole house? Try every color in our OC Supreme color selector.
What went on this roof
Supreme is Owens Corning's three-tab shingle: a flat, even pattern that matches older three-tab roofs and works well on garages and small sections. 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.
- 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
The crew came out of our St. Louis office. The job was opened in our system on July 10, 2026 and the crew finished on September 12, 2026, 64 days later. 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 Supreme, 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?
64 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.
Does John Beal Roofing work in Saint Charles, MO?
Yes. Saint Charles is served by our St. Louis office, and we've completed 18 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
How big was the roof on South Pam Avenue?
25.33 squares, or about 2,533 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 Saint Charles?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.