At a glance: Completed October 19, 2026: a full tear-off and replacement on North High Street, Carlinville, IL. Shingle: OC Duration. Size: 37.67 squares. Underlayment: synthetic underlayment across the full deck. Office: St. Louis, 314-429-6000.
Our crew finished a large 37.67-square roof covering about 3,767 square feet on North High Street in Carlinville, IL on Monday, October 19. Carlinville is the Macoupin County seat in central Illinois, north of the Metro East. Crews closed it out on October 19, 2026. OC Duration went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project details
| Location | North High Street (Carlinville, IL 62626) |
|---|---|
| Completed | Monday, October 19, 2026 |
| Opened to completed | 20 days |
| Roof size | 37.67 squares (about 3,767 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Duration |
| Underlayment | JBI Synthetic |
| Ice & water | Ice & water membrane |
| Starter course | Factory starter |
| Hip & ridge | Owens Corning Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL092926020 |
Want to see what OC Duration looks like on a whole house? Try every color in our OC Duration color selector.
The roofing system on this house
Duration is Owens Corning's best-known architectural shingle. The engineered, woven SureNail strip across the nailing line is what sets it apart: it gives nails a defined target and grip. The shingle is only the top layer. Here’s the full system that went on this house:
- 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.
- Factory 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.
- Owens Corning 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 did the work
This was a St. Louis office job, installed by John Beal Roofing. From the day the job was opened (September 29, 2026) to the day the crew finished (October 19, 2026) took 20 days. Family-owned since 1947, we back every replacement with a lifetime workmanship warranty. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in Carlinville?
Free inspection, documented slope by slope, no obligation. St. Louis office: 314-429-6000
FAQ about this roof
What shingle was installed on this Carlinville roof?
Owens Corning OC Duration, over synthetic underlayment across the full deck. The full system is in the project details table above.
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.
How big was the roof on North High Street?
37.67 squares, or about 3,767 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. Ice and water membrane went in the valleys and along the eaves, the spots where water backs up or collects first.
Who do I call about a roof in Carlinville?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.