At a glance: John Beal Roofing replaced the roof on Gahan Drive in Florissant, MO 63031, finishing October 27, 2026. 20.67 squares of Owens Corning TruDefinition Duration, installed over synthetic underlayment across the full deck. Handled by our St. Louis office (314-429-6000).
Florissant sits in one of North County’s largest and oldest cities, and this house on Gahan Drive needed a full replacement. The job wrapped up on October 27, 2026: 20.67 squares, deck to ridge. Roofs in Florissant take spring storms and January ice dams, so we don't skip the layers under the shingles that carry the water when the shingles can't.
Project details
| Location | Gahan Drive (Florissant, MO 63031) |
|---|---|
| Completed | Tuesday, October 27, 2026 |
| Roof size | 20.67 squares (about 2,067 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | Owens Corning — OC Duration |
| Underlayment | JBI Synthetic - 10 Sq Rolls |
| Ice & water | Ice and Water 1 Sq Roll |
| Starter course | Starter |
| Hip & ridge | Owens Corning Hip and Ridge |
| Ventilation | Lomanco Omni Roll |
| Warranty | Lifetime workmanship warranty |
| Project number | STL081726011 |
Choosing a color for your own roof? Browse every Owens Corning TruDefinition Duration color on a whole-house preview in our OC Duration color selector.
The roofing system on this house
The feature that defines Owens Corning Duration is SureNail Technology, a tough woven fabric band in the nailing zone that the fasteners go through for better hold. 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 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.
- Starter along every edge. The first course is where wind gets under a roof. A factory starter with its own sealant line locks it down.
- Owens Corning Hip and Ridge cap. Pre-formed cap that seals the hips and ridge.
- Lomanco Omni Roll. It runs along the peak and lets hot, damp attic air escape, protecting the decking and keeping shingles from baking from below.
Who installed it
This was a St. Louis office job, installed by our own crew, not subcontracted out, and finished on October 27, 2026. Family-owned since 1947, we back every replacement with a lifetime workmanship warranty. If a storm opens up a roof at 2 a.m., someone answers the phone. See 24/7 emergency service.
Need a roof in Florissant?
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 Florissant roof?
Owens Corning TruDefinition Duration, over synthetic underlayment across the full deck. The full system is in the project details table above.
Does John Beal Roofing work in Florissant, MO?
Yes. Florissant is served by our St. Louis office, and we've completed 20 roof replacements there in the last several weeks alone. Call 314-429-6000 for a free inspection.
How big was the roof on Gahan Drive?
20.67 squares, or about 2,067 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 1 Sq Roll 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 Florissant 63031?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.