At a glance: Completed September 2, 2026: a full tear-off and replacement on South Williams Street, Bethalto, IL. Shingle: IKO Dynasty. Size: 21.33 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
A 21.33-square roof (2,133 square feet), about what a standard ranch house carries on South Williams Street 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. IKO Dynasty went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project record
| Location | South Williams Street (Bethalto, IL 62018) |
|---|---|
| Completed | Wednesday, September 2, 2026 |
| Opened to completed | 74 days |
| Roof size | 21.33 squares (about 2,133 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 | STL062026003 |
Choosing a color for your own roof? Browse every IKO Dynasty color on a whole-house preview in our IKO Dynasty color selector.
Materials installed, layer by layer
Dynasty is IKO's performance architectural shingle. Its signature is ArmourZone, a reinforced fabric strip across the nailing area that gives every nail a wide, tough landing spot. 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.
- Self-sealing ice and water membrane where water concentrates. It seals around every nail driven through it, which matters in valleys and at the eaves.
- 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 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
John Beal Roofing crews out of our St. Louis office installed this roof. The job was opened in our system on June 20, 2026 and the crew finished on September 2, 2026, 74 days later. We’ve been family-owned since 1947. We run our own crews, and every roof comes with our lifetime workmanship warranty on top of the manufacturer’s material coverage. We answer the phone around the clock, storms included. 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?
IKO IKO Dynasty, over synthetic underlayment across the full deck. The full system is in the project details table above.
How big was the roof on South Williams Street?
21.33 squares, or about 2,133 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.
Does John Beal Roofing work in Bethalto, IL?
Yes. Bethalto is served by our St. Louis office, and we've completed 5 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
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.