At a glance: John Beal Roofing replaced the roof on State Street in Dupo, IL 62239, finishing July 29, 2026. 20.00 squares of IKO IKO Dynasty, installed over synthetic underlayment across the full deck. Handled by our St. Louis office (314-429-6000).
On State Street in Dupo, IL (a St. Clair County village on the American Bottom), the crew tore off and replaced a 20.00-square roof (2,000 square feet), about what a standard ranch house carries. The crew wrapped it up on Wednesday, July 29. IKO Dynasty went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project details
| Location | State Street (Dupo, IL 62239) |
|---|---|
| Completed | Wednesday, July 29, 2026 |
| Opened to completed | 43 days |
| Roof size | 20.00 squares (about 2,000 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | IKO — IKO Dynasty |
| Underlayment | JBI Synthetic |
| Ice & water | Alco Ice & Water |
| Starter course | IKO Starter |
| Hip & ridge | IKO Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL061626012 |
Choosing a color for your own roof? Browse every IKO Dynasty color on a whole-house preview in our IKO Dynasty color selector.
The roofing system on this house
With IKO Dynasty, the detail that matters most is the ArmourZone nailing strip: a wider, reinforced band where the nails go, so fasteners land where they hold best. The shingle is only the top layer. Here’s the full system that went on this house:
- 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.
- IKO 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.
- IKO 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 did the work
The crew came out of our St. Louis office. From the day the job was opened (June 16, 2026) to the day the crew finished (July 29, 2026) took 43 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. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in Dupo?
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 Dupo roof?
IKO IKO Dynasty, 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 big was the roof on State Street?
20.00 squares, or about 2,000 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 Dupo, IL?
Yes. Dupo is served by our St. Louis office. Call 314-429-6000 for a free inspection.
Who do I call about a roof in Dupo?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.