At a glance: Completed September 4, 2026: a full tear-off and replacement on Sequoia Drive, Bethalto, IL. Shingle: OC Supreme. Size: 24.67 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
A mid-size 24.67-square roof, roughly 2,467 square feet on Sequoia Drive in Bethalto, IL, a Madison County village east of Alton. It was one of 3 roof replacements our crews completed in Bethalto in September 2026. OC Supreme went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
What the work order shows
| Location | Sequoia Drive (Bethalto, IL 62010) |
|---|---|
| Completed | Friday, September 4, 2026 |
| Opened to completed | 49 days |
| Roof size | 24.67 squares (about 2,467 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 | STL071726030 |
Choosing a color for your own roof? Browse every Owens Corning Supreme color on a whole-house preview 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 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. 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
The crew came out of our St. Louis office. From the day the job was opened (July 17, 2026) to the day the crew finished (September 4, 2026) took 49 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 Bethalto?
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 Bethalto roof?
Owens Corning OC Supreme, over synthetic underlayment across the full deck. The full system is in the project details table above.
How big was the roof on Sequoia Drive?
24.67 squares, or about 2,467 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.
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.
Who do I call about a roof in Bethalto?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.