At a glance: John Beal Roofing replaced the roof on Pine Grove Avenue in St. Louis, MO 63121, finishing September 30, 2026. 18.33 squares of GAF GAF Timberline HDZ, installed over synthetic underlayment across the full deck. Handled by our St. Louis office (314-429-6000).
On Pine Grove Avenue in St. Louis, MO (north St. Louis County around Normandy), the crew tore off and replaced a 18.33-square roof, right around the size of a typical single-story ranch. It was one of 27 roof replacements our crews completed in St. Louis in September 2026. GAF Timberline HDZ went over synthetic underlayment across the full deck, with ice and water membrane at the eaves and valleys.
Project details
| Location | Pine Grove Avenue (St. Louis, MO 63121) |
|---|---|
| Completed | Wednesday, September 30, 2026 |
| Opened to completed | 103 days |
| Roof size | 18.33 squares (about 1,833 sq ft) |
| Scope of work | Full tear-off and roof replacement |
| Shingle | GAF — GAF Timberline HDZ |
| Underlayment | JBI Synthetic |
| 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 | STL061926032 |
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. Every one of our replacements is a system, not just shingles. On this roof, from the deck up:
- Synthetic underlayment over the whole deck. It’s stronger and more tear-resistant than felt, and it lies flat if weather rolls in during the tear-off.
- Ice and water membrane at the eaves and in the valleys. This self-adhering layer goes where water backs up: behind ice dams at the eaves and where two slopes meet.
- 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.
The crew behind this roof
The crew came out of our St. Louis office. The job was opened in our system on June 19, 2026 and the crew finished on September 30, 2026, 103 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 St. Louis?
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 St. Louis roof?
GAF GAF Timberline HDZ, over synthetic underlayment across the full deck. The full system is in the project details table above.
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.
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.
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.
Do you publish the customer's address?
No. We publish the street name, city and ZIP so you can see we really work in your neighborhood. We leave off the house number and never publish a customer's name.
Who do I call about a roof in St. Louis?
Our St. Louis office at 314-429-6000. A person answers 24 hours a day, including nights, weekends and holidays.