At a glance: Completed October 19, 2026: a full tear-off and replacement on Bobolink Drive, Florissant, MO. Shingle: GAF Timberline HDZ. Size: 18.00 squares. Underlayment: two layers of synthetic underlayment, a heavier spec than our standard single layer. Office: St. Louis, 314-429-6000.
On Bobolink Drive in Florissant, MO (one of the largest cities in North County, with neighborhood after neighborhood of 1950s and 1960s ranch homes), the crew tore off and replaced a 18.00-square roof (1,800 square feet), about what a standard ranch house carries. It was one of 17 roof replacements our crews completed in Florissant in October 2026. On top: GAF Timberline HDZ. Underneath: two layers of synthetic underlayment, a heavier spec than our standard single layer plus ice and water membrane where water collects.
Project details
| Location | Bobolink Drive (Florissant, MO 63031) |
|---|---|
| Completed | Monday, October 19, 2026 |
| Opened to completed | 25 days |
| Roof size | 18.00 squares (about 1,800 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | GAF — GAF Timberline HDZ |
| Underlayment | JBI Synthetic, double layer |
| Ice & water | Ice & water membrane |
| Starter course | Factory starter |
| Hip & ridge | GAF Hip & Ridge |
| Ventilation | Lomanco Omni Roll ridge vent |
| Warranty | Lifetime workmanship warranty |
| Project number | STL092426014 |
Choosing a color for your own roof? Browse every GAF Timberline HDZ color on a whole-house preview in our GAF Timberline HDZ color selector.
What went on this roof
GAF Timberline HDZ is a laminated architectural shingle built with GAF LayerLock Technology, which bonds the shingle layers together, and a wide StrikeZone nailing area that gives the installer a large, clearly marked target. 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:
- Two layers of synthetic underlayment. That’s double our standard spec. The second layer adds another barrier under the shingles.
- 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 strip along every edge. The first course is where wind gets under a roof. A factory starter with its own sealant line locks it down.
- GAF 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 did the work
This was a St. Louis office job, installed by John Beal Roofing. From the day the job was opened (September 24, 2026) to the day the crew finished (October 19, 2026) took 25 days. 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
FAQ about this roof
What shingle was installed on this Florissant roof?
GAF GAF Timberline HDZ, over two layers of synthetic underlayment, a heavier spec than our standard single layer. 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.
Does John Beal Roofing work in Florissant, MO?
Yes. Florissant is served by our St. Louis office, and we've completed 39 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?
25 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 Florissant?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.