Titanium UDL25 48 in. x 250 ft. Synthetic Roofing Underlayment, 10 Squares, Grey - image 1

Titanium UDL25 48 in. x 250 ft. Synthetic Roofing Underlayment, 10 Squares, Grey

Regular price $199.31

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Titanium UDL25 48 in. x 250 ft. Synthetic Roofing Underlayment, 10 Squares, Grey


This is one grey roll of Titanium UDL25 synthetic roofing underlayment, 48 in. x 250 ft., covering 1,000 sq ft (10 squares). It replaces traditional asphalt felt as a secondary water barrier under shingle, tile and metal roofs. One roll is the selling unit.


Key Features:

  • 10 Squares Per Roll: Each 48 in. x 250 ft. roll covers 1,000 sq ft, or 10 squares.
  • Synthetic Strength: Synthetic construction provides a lightweight, tear-resistant alternative to asphalt felt.
  • Class A Fire: Class A Fire per ASTM E108, supporting fire-rated roof assemblies.
  • Class 4 Hail: Meets Class 4 Hail Rating for impact performance as listed.
  • Broad Approvals: Approved for Florida Building Code, Texas Department of Insurance, ICC-ES, and meets ASTM D226 Types I & II.
  • LEED Contribution: Contributes to LEED points as listed, with ETL Intertek Listed and WH Intertek Certified marks.

Specifications Table:

Specification Details
Brand Titanium
Manufacturer model UDL-25
Sell unit 1 roll, 48 in. x 250 ft.
Product line Titanium UDL25
Color Grey
Dimensions 48 in. x 250 ft.
Coverage per unit 1,000 sq ft (10 squares)
Material Synthetic underlayment
Fire rating / wind rating / warranty Class A Fire ASTM E108; Meets Class 4 Hail Rating
Exposure As printed: meets and exceeds ASTM D226 Types I & II
Approvals ICC-ES Approved; Florida Building Code Approved; Texas Department of Insurance; CAN/CSA A220.1; ETL Intertek Listed; WH Intertek Certified; SCS Certified; contributes to LEED points
Weight 26 lb per roll
Intended use Secondary water barrier under shingle, tile and metal roofing

Coverage & How Much You Need:

One 48 in. x 250 ft. roll covers 1,000 sq ft, or 10 squares, before laps. Size the job by roof area plus lap allowance per the manufacturer's instructions.

Fit and Compatibility:

Used as underlayment beneath shingle, tile and metal roof coverings in a complete roofing assembly. Starter, hip and ridge, and field products of the roof system are specified separately.


Frequently Asked Questions (FAQ):

Q: How much does one roll cover?
A: One 48 in. x 250 ft. roll covers 1,000 sq ft, or 10 squares, before lap deductions.


Q: What color is it?
A: Grey.


Q: Is it fire and hail rated?
A: Class A Fire per ASTM E108 and it meets Class 4 Hail Rating as listed.


Q: Does it replace felt?
A: Yes, it is a synthetic alternative to asphalt felt and meets/exceeds ASTM D226 Types I & II.


Q: Is it code approved?
A: Yes, Florida Building Code and Texas Department of Insurance approvals plus ICC-ES are listed.


Q: How heavy is the roll?
A: Approximately 26 lb per roll.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

UDL25 is a workhorse synthetic for crews who want 10 squares per roll with less weight and better tear resistance than felt. Install per the manufacturer's lap and fastening pattern, keeping laps tighter in high-wind zones. Keep rolls dry and flat until use, and confirm code approvals for your jurisdiction - the printed FBC and TDI listings cover many coastal and southern markets.

Synthetic underlayment can be slippery when wet or dusty; wear appropriate footwear and follow fall-protection rules on the roof.


Pick up the Titanium UDL25 synthetic underlayment, 48 in. x 250 ft., 10 squares per roll.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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