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Titanium UDL50 48 in. x 250 ft. Synthetic Roofing Underlayment Roll, Grey - 10 Square
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Titanium UDL50 48 in. x 250 ft. Synthetic Roofing Underlayment Roll, Grey - 10 Square
Titanium UDL50 is a grey synthetic roofing underlayment supplied as one 48 in. x 250 ft. roll covering 1,000 sq ft (10 squares). It meets ASTM D226 and D4869, carries a Class A fire rating (ASTM E108/UL 790) and a Class 4 hail rating, and is Miami-Dade, Florida Building Code, and TDI approved. Use it beneath shingle or other steep-slope roof coverings.
Key Features:
- 10 square roll: One 48 in. x 250 ft. roll covers 1,000 sq ft, equal to 10 roofing squares.
- Class A fire: Classified Class A for fire resistance under ASTM E108/UL 790.
- Class 4 hail: Meets Class 4 hail rating for impact resistance.
- Code approvals: Miami-Dade County Approved, Florida Building Code Approved, and Texas Department of Insurance Listed.
- ASTM compliance: Conforms to ASTM D226 and ASTM D4869 Types II & IV, with ICC-ES report CCRR-1024.
- Synthetic strength: Synthetic construction in grey, listed in the UDL 50-year product line.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Titanium |
| Manufacturer model | UDL-50 |
| Sell unit | 1 roll, 48 in. x 250 ft. (10 squares) |
| Product line | Titanium UDL50 |
| Color | Grey |
| Dimensions | 48 in. x 250 ft. roll |
| Coverage per unit | 1,000 sq ft (10 squares) |
| Material | Synthetic underlayment |
| Fire rating | Class A (ASTM E108/UL 790) |
| Hail rating | Class 4 |
| Approvals | ASTM D226; ASTM D4869 Types II & IV; Miami-Dade County Approved; Florida Building Code Approved; Texas Department of Insurance Listed; CCRR-1024; CAN/CSA A220.1; ICC-ES Approved |
| Weight | 50 lb per roll |
Coverage & How Much You Need:
Each roll measures 48 in. x 250 ft. and covers 1,000 sq ft, or 10 roofing squares. Divide the roof area by 1,000 to estimate rolls needed, and allow extra for laps and waste at hips, valleys, and eaves per the manufacturer's installation instructions.
Fit and Compatibility:
Install under asphalt shingles and other steep-slope coverings as a synthetic substitute for ASTM D226 / D4869 felt underlayment. Fasteners, cap nails, and drip edge are sold separately.
Frequently Asked Questions (FAQ):
Q: How much does one roll cover?
A: One roll is 48 in. x 250 ft. and covers 1,000 sq ft, or 10 squares.
Q: Is it code approved?
A: Yes - it is Miami-Dade County Approved, Florida Building Code Approved, TDI Listed, and ICC-ES approved (CCRR-1024).
Q: What fire and hail ratings does it carry?
A: Class A fire resistance per ASTM E108/UL 790 and a Class 4 hail rating.
Q: Can it replace felt underlayment?
A: Yes, it meets ASTM D226 and ASTM D4869 Types II & IV, the standards for organic and asbestos-free shingle underlayment felts.
Q: What comes in the order?
A: One grey 50 lb roll; fasteners and other roofing accessories are sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
UDL50 is a workhorse synthetic for full-deck underlayment on shingle jobs: at 10 squares per roll you cut roll changes dramatically versus 4-square felt. Follow the manufacturer's lap and fastening schedule, and use cap nails or cap staples to avoid pull-through. For ice-prone eaves and valleys, pair it with a peel-and-stick membrane such as Titanium PSU30 in the vulnerable areas.
Synthetic underlayment can be slippery, especially when wet or dusty - wear appropriate footwear and fall protection while installing.
Get the Titanium UDL50 10-square synthetic underlayment roll for your next shingle roof.
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