At a glance: In short: 18.67 squares, OC Supreme, synthetic underlayment across the full deck, ridge vent, lifetime workmanship warranty. Pennsylvania Avenue, St. Louis, MO 63111, done October 13, 2026 by our St. Louis crew (314-429-6000).
A 18.67-square roof (1,867 square feet), about what a standard ranch house carries on Pennsylvania Avenue in St. Louis, MO, south city near Carondelet. It was one of 30 roof replacements our crews completed in St. Louis in October 2026. On top: Owens Corning Supreme. Underneath: synthetic underlayment across the full deck plus ice and water membrane where water collects.
Project details
| Location | Pennsylvania Avenue (St. Louis, MO 63111) |
|---|---|
| Completed | Tuesday, October 13, 2026 |
| Opened to completed | 19 days |
| Roof size | 18.67 squares (about 1,867 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Supreme |
| 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 | STL092426026 |
Choosing a color for your own roof? Browse every Owens Corning Supreme color on a whole-house preview in our OC Supreme color selector.
Materials installed, layer by layer
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:
- 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.
- 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 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
John Beal Roofing crews out of our St. Louis office installed this roof. From the day the job was opened (September 24, 2026) to the day the crew finished (October 13, 2026) took 19 days. We’ve been family-owned since 1947, and every roof comes with our lifetime workmanship warranty on top of the manufacturer’s material coverage. If a storm opens up a roof at 2 a.m., someone answers the phone. See 24/7 emergency service.
Need a roof in St. Louis?
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 St. Louis roof?
Owens Corning OC Supreme, over synthetic underlayment across the full deck. The full system is in the project details table above.
Does John Beal Roofing work in St. Louis, MO?
Yes. St. Louis is served by our St. Louis office, and we've completed 135 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
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 long did this project take from start to finish?
19 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.
Who do I call about a roof in St. Louis?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.