GAF Polymer GypTec Roofing Fasteners, 2-1/2 in
Glass-filled nylon auger fasteners engineered to secure insulation and single-ply membrane to gypsum and cementitious wood fiber decks. A 1/4 in internal square drive and wide buttress thread deliver fast installation and strong pull-out resistance; designed to thread into the substrate without penetrating the deck.
Key Features:
- Purpose-Built for Gypsum/CWF: Secures insulation and single-ply membrane to gypsum and cementitious wood fiber decks
- Fast, Easy Installation: Internal 1/4 in square drive (driver bit included) speeds application
- High Holding Power: Wide buttress thread design enhances pull-out resistance
- Plate Compatibility: Use with 3 in steel plates (insulation) and 2 in steel plates (membrane)
- Durable Construction: Glass-filled nylon with 1 in head; tabs lock plate to fastener head
Specifications Table:
| Specification | Details |
| Manufacturer Part Number | 456G |
| Product Number | GAFGYPFST25 |
| Length | 2-1/2 in |
| Head Diameter | 1 in |
| Drive Type | Internal 1/4 in square (driver bit included) |
| Material | Glass-filled nylon |
| Thread Type | Wide buttress thread |
| Plate Compatibility | 3 in steel plates (insulation); 2 in steel plates (membrane) |
| Intended Substrates | Gypsum and cementitious wood fiber (Insulrock, Permadeck, Tectum, etc.) |
| Approvals | FM Approved; Miami-Dade County Approved |
| Packaging | Box of 500 |
| Unit of Measure | CTN |
| Style Category | Nails, Screws & Fasteners |
Frequently Asked Questions (FAQ):
Q: What materials can these fasteners be used with?
A: They are designed for gypsum and cementitious wood fiber decks (e.g., Insulrock, Permadeck, Tectum) for securing insulation and single-ply membranes.
Q: Do the fasteners penetrate the deck?
A: No. They are designed to thread into the substrate without penetrating the deck.
Q: What driver is required?
A: An internal 1/4 in square drive is used, and a driver bit is included.
Q: Which plates are compatible?
A: Use 3 in steel plates for insulation attachment and 2 in steel plates for membrane attachment.
Q: Are there approvals or ratings?
A: Yes, they are FM Approved and Miami-Dade County Approved.
Sleek Precision for High-Performance Roof Assemblies
This fastener brings an elegant efficiency to commercial roofingpurposeful, minimal, and engineered to perform. I love the bold buttress thread that feels sculptural while delivering uncompromising hold. Pair it with clean steel plates for a crisp, orderly fastening pattern that reads as considered craftsmanship. Its a quiet essential that elevates the integrity and luxury of a well-detailed roof system.
Choose GAF Polymer GypTec Fasteners today for faster installs and reliable hold on gypsum and cementitious wood fiber decks.
