Weather-Armor® FT³ Fleece-Top Roof Underlayment
Get the best pricing on roofing underlayment with Weather-Armor® FT³ Fleece-Top from VanBoxel Supply. Designed for tile roofing systems, metal roofing systems, and mechanically fastened roof assemblies, FT³ delivers exceptional waterproofing performance, long-term durability, and advanced weather protection.
Manufactured with dual reinforcements, heavy-weight polyester, and high-tensile glass reinforcement, FT³ creates a highly durable waterproof membrane that performs in demanding roofing environments. Its unique fleece-top surface makes it an ideal solution for foam adhesive systems, mechanically attached roofing systems, and hybrid roofing assemblies.
Contractor Benefits
✔ Premium Fleece-Top Surface
✔ 25 Rolls Per Pallet
✔ Temperature Resistant Up To 265°F
✔ Waterproof & Nail Sealable Membrane
✔ Up To 180 Days UV Exposure Protection
✔ Compatible With Foam Adhesive Systems
✔ Designed For Mechanically Fastened Roofing Systems
✔ Miami-Dade County Approved
✔ Florida Building Code Approved
Designed for Tile & Metal Roofing Systems
Weather-Armor® FT³ is specifically engineered for roofing applications where superior durability and waterproofing are required. The fleece-top surface creates an ideal substrate for tile roofing installations, metal roofing systems, and other mechanically attached roofing assemblies.
- Tile roofing systems
- Metal roofing systems
- Mechanically attached roof systems
- Hybrid roofing systems
- Foam adhesive roofing installations
- Commercial and residential roofing projects
Advanced Waterproofing Protection
FT³ provides a highly rubberized waterproof membrane that helps prevent moisture intrusion and protects vulnerable roofing components from long-term water damage. The membrane seals around fasteners while maintaining exceptional flexibility and durability.
Protection Against:
- Ice dams
- Water intrusion
- Roof leaks
- Wind-driven rain
- Moisture damage
- Snow and ice buildup
- Weather-related deterioration
- Long-term structural damage
Built for High-Performance Roofing Systems
Weather-Armor® FT³ combines dual reinforcement technology with heavy-weight polyester and high-tensile glass reinforcement to provide exceptional strength and durability.
Performance characteristics include:
- 60 mil thickness
- Excellent tear resistance
- Exceptional adhesion to plywood
- Waterproof integrity after low-temperature flexibility testing
- Superior slip resistance
- Reliable nail sealability
Extended UV Protection
Unlike many roofing underlayments, FT³ provides up to 180 days of UV exposure protection. This extended exposure window offers additional flexibility for contractors managing larger roofing projects and phased construction schedules.
- Up to 180 days UV exposure
- Excellent weather resistance
- Ideal for large roofing projects
- Supports phased installation schedules
Why Contractors Buy from VanBoxel Supply
VanBoxel Supply is a roofing supply company focused on providing premium roofing materials direct to contractors throughout the United States. Whether you’re purchasing roofing underlayment pallets and truckloads or sourcing roofing materials for large jobs, our team delivers contractor pricing and nationwide delivery.
- Roofing underlayment wholesale pricing
- Roofing supply direct to contractors
- Roofing materials shipped nationwide
- Roofing underlayment pallets and truckloads
- Contractor volume discounts
- Nationwide roofing supply network
Complete Your Roofing System
Pair Weather-Armor® FT³ with additional contractor-grade roofing products available from VanBoxel Supply.
- Coil roofing nails wholesale
- Roof cap nails
- Aluminum drip edge
- Steel drip edge products
- Drip edge flashing
- Continuous ridge vent
- Plastic ridge vent systems
- Roof ridge ventilation systems
Technical Specifications
| Thickness (ASTM D1970) | 60 mil |
| Maximum Load, MD/CD (ASTM D1970) | >25 lbf/in |
| Elongation at Break (ASTM D1970) | >10% minimum of modified bitumen portion |
| Tear Resistance, MD/CD (ASTM D1970) | >60 lbf/in |
| Moisture Vapor Permeability (ASTM E96) | <0.1 perms |
| Adhesion to Plywood @40°F (ASTM D1970) | >8 lbf/in |
| Adhesion to Plywood @75°F (ASTM D1970) | >25 lbf/in |
| Sealability Around Nail (ASTM D1970) | Pass |
| Waterproof Integrity After Low Temperature Flexibility | Pass |
| Slip Resistance (ASTM D1970) | Pass |
| Low Temperature Flexibility | Pass |
| Temperature Resistance | Up To 265°F |
| UV Exposure | Up To 180 Days |
| Approvals | ASTM D1970, TAS 103, ICC AC 48, Miami-Dade Approved, Florida Building Code Approved, TDI Listed |
| PRI Report | GGI-195-02 |
See every high temp ice and water shield option we stock.
