At a glance: Completed June 19, 2026: a full tear-off and replacement on Sarah Drive, O'Fallon, MO. Shingle: IKO Dynasty. Size: 28.00 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
On Sarah Drive in O'Fallon, MO (a fast-growing St. Charles County city along I-70 and Highway K), the crew tore off and replaced a 28.00-square roof, the size of a larger ranch or a modest two-story. It was one of 3 roof replacements our crews completed in O'Fallon in June 2026. The system: synthetic underlayment across the full deck, ice and water membrane in the valleys and at the eaves, and IKO Dynasty on top.
Job specs
| Location | Sarah Drive (O'Fallon, MO 63366) |
|---|---|
| Completed | Friday, June 19, 2026 |
| Opened to completed | 11 days |
| Roof size | 28.00 squares (about 2,800 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 | STL060826064 |
Want to see what IKO Dynasty looks like on a whole house? Try every color in our IKO Dynasty color selector.
The roofing system on this house
IKO Dynasty is a laminated architectural shingle built around a wide reinforced nailing strip IKO calls ArmourZone, which gives the installer a generous target and holds the fasteners where they belong. Every one of our replacements is a system, not just shingles. On this roof, from the deck up:
- 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. Continuous exhaust at the peak. Together with the soffit intake, it moves heat and moisture out of the attic.
Who installed it
John Beal Roofing crews out of our St. Louis office installed this roof. The job was opened in our system on June 8, 2026 and the crew finished on June 19, 2026, 11 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 O'Fallon?
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 O'Fallon 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 Sarah Drive?
28.00 squares, or about 2,800 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 O'Fallon?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.