At a glance: John Beal Roofing replaced the roof on Parthenon Drive in De Soto, MO 63020, finishing October 19, 2026. 20.33 squares of GAF GAF Timberline HDZ, installed over 15 lb felt underlayment. Handled by our St. Louis office (314-429-6000).
This one was a 20.33-square roof (2,033 square feet), about what a standard ranch house carries on Parthenon Drive in De Soto, MO, a Jefferson County town in the hills south of Hillsboro. We replaced 1 other roof in ZIP 63020 that same month. GAF Timberline HDZ went over 15 lb felt underlayment, with ice and water membrane at the eaves and valleys.
Job specs
| Location | Parthenon Drive (De Soto, MO 63020) |
|---|---|
| Completed | Monday, October 19, 2026 |
| Opened to completed | 18 days |
| Roof size | 20.33 squares (about 2,033 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | GAF — GAF Timberline HDZ |
| Underlayment | 15 lb felt |
| 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 | STL100126025 |
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.
Materials installed, layer by layer
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. The shingle is only the top layer. Here’s the full system that went on this house:
- 15 lb felt underlayment. Felt went down over the deck under the shingles.
- Self-sealing ice and water membrane where water concentrates. It seals around every nail driven through it, which matters in valleys and at the eaves.
- 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 on the hips and peak. Matching cap shingles made for the job, not field shingles cut into pieces.
- 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
The crew came out of our St. Louis office. The job was opened in our system on October 1, 2026 and the crew finished on October 19, 2026, 18 days later. 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. We answer the phone around the clock, storms included. See 24/7 emergency service.
Need a roof in De Soto?
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 De Soto roof?
GAF GAF Timberline HDZ, over 15 lb felt underlayment. The full system is in the project details table above.
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.
How long did this project take from start to finish?
18 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.
Does John Beal Roofing work in De Soto, MO?
Yes. De Soto is served by our St. Louis office, and we've completed 5 roof replacements there in the last few months alone. Call 314-429-6000 for a free inspection.
Who do I call about a roof in De Soto?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.