At a glance: Completed September 17, 2026: a full tear-off and replacement on Montclair Avenue, Godfrey, IL. Shingle: OC Supreme. Size: 14.33 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
This one was a 14.33-square roof, right around the size of a typical single-story ranch on Montclair Avenue in Godfrey, IL, a Madison County village just north of Alton. It was one of 6 roof replacements our crews completed in Godfrey 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.
Project details
| Location | Montclair Avenue (Godfrey, IL 62035) |
|---|---|
| Completed | Thursday, September 17, 2026 |
| Opened to completed | 36 days |
| Roof size | 14.33 squares (about 1,433 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 | STL081226006 |
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. Every one of our replacements is a system, not just shingles. On this roof, from the deck up:
- 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 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. Continuous exhaust at the peak. Together with the soffit intake, it moves heat and moisture out of the attic.
The crew behind this roof
The crew came out of our St. Louis office. The job was opened in our system on August 12, 2026 and the crew finished on September 17, 2026, 36 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. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in Godfrey?
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 Godfrey 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 Montclair Avenue?
14.33 squares, or about 1,433 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 Godfrey, IL?
Yes. Godfrey is served by our St. Louis office, and we've completed 8 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
How long did this project take from start to finish?
36 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 Godfrey?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.