At a glance: In short: 35.33 squares, OC Duration, synthetic underlayment across the full deck, ridge vent, lifetime workmanship warranty. Crystal Drive, Bunker Hill, IL 62014, done October 12, 2026 by our St. Louis crew (314-429-6000).
A large 35.33-square roof covering about 3,533 square feet on Crystal Drive in Bunker Hill, IL, a Macoupin County city in southwestern Illinois, north of Alton. We replaced 1 other roof in ZIP 62014 that same month. OC Duration went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
What the work order shows
| Location | Crystal Drive (Bunker Hill, IL 62014) |
|---|---|
| Completed | Monday, October 12, 2026 |
| Opened to completed | 103 days |
| Roof size | 35.33 squares (about 3,533 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Duration |
| Underlayment | JBI Synthetic |
| Ice & water | Alco Ice & Water |
| Starter course | IKO Starter |
| Hip & ridge | Owens Corning Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL070126022 |
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. People shop for the shingle, but what’s underneath it and how the edges are finished decide how long the roof lasts. On this job:
- 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.
- 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.
- Owens Corning 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.
Who installed it
The crew came out of our St. Louis office. From the day the job was opened (July 1, 2026) to the day the crew finished (October 12, 2026) took 103 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. If a storm opens up a roof at 2 a.m., someone answers the phone. See 24/7 emergency service.
Need a roof in Bunker Hill?
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 Bunker Hill roof?
Owens Corning OC Duration, over synthetic underlayment across the full deck. The full system is in the project details table above.
How big was the roof on Crystal Drive?
35.33 squares, or about 3,533 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 Bunker Hill, IL?
Yes. Bunker Hill is served by our St. Louis office, and we've completed 2 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?
103 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 Bunker Hill?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.