Skip to content
TRI-BUILT 28 Gauge Galvanized Gravel Guard 4 in. x 4 in. x 1/2 in.
Regular price $17.63Orders start at $399 — combine any items to reach the minimum. Learn more
TRI-BUILT 28 Gauge Galvanized Gravel Guard 4 in. x 4 in. x 1/2 in.
TRI-BUILT 28 gauge galvanized gravel guard with a 4 in. x 4 in. x 1/2 in. profile, sold as a single piece. It protects roof edges and gravel-stop details from aggregate damage. Use with built-up and gravel-surfaced roofing systems at perimeter conditions.
Key Features:
- Corrosion resistant: Galvanized 28 gauge steel stands up to weather exposure at the roof perimeter.
- Compact profile: 4 in. x 4 in. face with 1/2 in. return suits gravel-stop and edge protection details.
- Single piece: Sold per piece so you can order the exact quantity needed.
- Edge protection: Shields membrane and edging from gravel and aggregate impact.
- Galvanized finish: Mill galvanized finish blends with standard metal roofing accessories.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | TRI-BUILT |
| Manufacturer model | TB2100-4 |
| Sell unit | 1 piece |
| Product line | Gravel guard / gravel stop |
| Profile / style | Gravel guard, 4 in. face x 1/2 in. return |
| Color | Galvanized |
| Dimensions | 4 in. x 4 in. x 1/2 in., 28 ga |
| Material | Galvanized steel |
| Thickness / gauge | 28 gauge |
| Height | 4 in. |
| Width | 4 in. |
| Depth | 1/2 in. |
| Pack quantity | 1 piece |
| Weight | 4.56 lb |
| Intended use | Perimeter gravel and edge protection on built-up or gravel-surfaced roofs |
Coverage & How Much You Need:
One piece protects one section of roof edge; measure the linear footage of the perimeter and order pieces accordingly, overlapping joints where the manufacturer's detail requires.
Fit and Compatibility:
Intended for use with gravel-surfaced and built-up roofing membranes at gravel stops and edge conditions. Cleats, fasteners and termination accessories are sold separately.
Frequently Asked Questions (FAQ):
Q: How many pieces are in one order?
A: This item is sold as a single piece.
Q: What are the dimensions?
A: 4 in. x 4 in. with a 1/2 in. return, formed from 28 gauge galvanized steel.
Q: What does a gravel guard do?
A: It retains and deflects roof gravel at the edge, protecting the membrane and metal edging from aggregate wear.
Q: Can it be painted?
A: Galvanized steel can be field painted with a primer and topcoat rated for galvanized surfaces.
Q: How is it fastened?
A: Fasten per the roof system manufacturer's edge detail; fasteners and cleats are sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Gravel guards are essential wherever loose aggregate ballast could spill or scour the membrane edge; verify the 1/2 in. return matches your gravel-stop detail before ordering. On low-slope roofs, coordinate the guard height with the membrane termination so the membrane laps correctly behind the metal. Follow NRCA-style edge detailing and local wind-uplift requirements for perimeter metal.
Wear gloves when handling formed sheet-metal edges, and follow fall-protection requirements when working at the roof edge.
Add the TRI-BUILT 28 gauge galvanized gravel guard to your roof perimeter detail today.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
