TRI-BUILT Synthetic Roofing Underlayment, 42 in. x 286 ft, 10-Square Roll
Regular price $9.90TRI-BUILT Synthetic Roofing Underlayment 10-Square Roll
High-performance synthetic underlayment engineered to replace traditional felt on sloped roofs. Lightweight 10-square rolls with a durable, slip-resistant walking surface speed installation while resisting UV, water absorption, and wrinkling.
Key Features:
- Stronger Than Felt: Up to 12x stronger than #15 felt for long-lasting protection
- Fast, Safe Installation: 42 in. wide lightweight rolls with slip-resistant top and backside coatings
- Weather Ready: 90-day UV exposure rating; lays flat and won’t absorb water or wrinkle
- Code Compliant: Meets ASTM D226 I & II, D4869 II & IV, ASTM D8257; Class A fire resistance under asphalt shingles
- Approved Performance: Florida Building Code (FL22259-R2), Miami-Dade, CAN/CSA A123.3, CCRR-1067, Texas Department of Insurance
Specifications Table:
| Specification | Details |
|---|---|
| Roll dimensions | 42 in x 286 ft |
| Coverage | 10 squares per roll |
| Unit of measure | Roll (RL) |
| Item weight | 24 lb |
| Style | Underlayment |
| Product number | TRISRU42286 |
| Manufacturer number | 890773 |
| Slip resistance | Durable slip-resistant walking surface; advanced backside non-slip coating |
| UV exposure | 90 days |
| Strength vs #15 felt | Up to 12 times stronger |
| Material | Synthetic construction (inert to mold growth) |
| Installation width | 42 in wide lightweight rolls |
| Performance standards | Meets ASTM D226 Types I & II; ASTM D4869 Types II & IV; ASTM D8257 |
| Fire rating | ASTM E108/UL790 Class A (under asphalt shingles) |
| Certifications/approvals | CAN/CSA A123.3; CCRR-1067; Florida Building Code Approved (FL22259-R2); Miami-Dade Product Approved; Texas Department of Insurance Listed |
| Features | Lays flat; does not absorb water or wrinkle; low temperature flexibility |
Frequently Asked Questions (FAQ):
Q: What is the roll size and coverage?
A: Each roll measures 42 inches by 286 feet and covers approximately 10 squares.
Q: Can it be left exposed?
A: Yes, it has a 90-day UV exposure rating before final roofing is installed.
Q: Is it suitable under asphalt shingles?
A: Yes. It provides ASTM E108/UL790 Class A fire resistance when installed under asphalt shingles.
Q: How does it compare to #15 felt?
A: It is up to 12 times stronger and offers 6 more squares per roll than typical #15 felt.
Q: Does it resist mold and wrinkling?
A: Its synthetic construction is inert to mold growth and it lays flat without absorbing water or wrinkling.
Quiet Strength Beneath a Flawless Roofline
This underlayment creates a serene, seamless foundation that lets your roof’s finish shine. I love its slate-black surface and confident grip—details that translate to a cleaner, more precise install. Pair it with architectural shingles to emphasize crisp eaves and bold shadow lines. It’s the invisible luxury that elevates a roof from ordinary to exquisitely crafted.
Choose TRI-BUILT Synthetic Underlayment today for faster installs and durable, code-compliant protection on your next roofing project.
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