4 ft. x 250 ft. Synthetic Roofing Underlayment

Contractor-grade synthetic roofing underlayment delivering a durable 4-layer barrier between shingles and roof deck. Lightweight, nail-applied roll covers 1,000 sq. ft. with high-traction walkability and 6-month UV stability for flexible scheduling.

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Key Features:

• Durable 4-Layer Construction: High-traction non-woven top, polypropylene lamination, woven scrim, and slip-resistant base for strength and safety
• High UV Stability: Withstands up to 6 months of outdoor exposure to fit project timelines
• Lightweight, Easy Install: Nail on marked fastening and overlap patterns; no cardboard core for cleaner jobsites
• Superior Strength vs. Felt: Up to 9x stronger than #15 felt and 7x stronger than #30 felt; resists tears, cracks, and moisture
• Ample Coverage: 48 in. x 250 ft. roll covers 1,000 sq. ft. (10 squares)

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Specifications Table:

Specification	Details
Dimensions	4 ft. x 250 ft. (48 in. width; 250 ft. length)
Coverage Area	1,000 sq ft (10 squares) per roll
Material	Synthetic fiber; multi-layer with polypropylene lamination, woven scrim, slip-resistant base
Color Family	Gray
Texture	Smooth; high-traction top surface
Application Method	Nail
Underlayment Type	Synthetic Underlayment
Roofing Product Type	Underlayment
Surface Recommended	Wood
Product Thickness	0.009 in
Fire Rating (UL 790)	Class A
Features	Water Resistant, Mildew Resistant, Corrosion Resistant, Rust Resistant; Slip-resistant base; Anti-skid deck side coating
UV Stability	Up to 6 months exposure
Manufacturer Warranty	Limited Lifetime
Strength vs Felt	Up to 9x stronger than #15 felt; up to 7x stronger than #30 felt

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Frequently Asked Questions (FAQ):

Q: How is this underlayment installed?
A: Install with nails on the designated fastening and overlap markings; suitable over wood roof decks.

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Q: Can it be left exposed to the sun?
A: Yes, it has high UV stability and can be exposed for up to 6 months before final roofing is installed.

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Q: What is the roll coverage?
A: Each 4 ft. x 250 ft. roll covers 1,000 sq. ft. (10 squares).

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Q: What is the material and color?
A: Synthetic fiber construction in gray with a smooth texture and high-traction surface.

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Q: Is it fire rated?
A: Yes, it carries a UL 790 Class A fire rating.

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A Sleek, Resilient Shield for Modern Rooflines

This streamlined underlayment creates a refined, uniform foundation that elevates the roofing silhouette before the first shingle is set. I adore the high-traction surface—its quiet confidence underfoot speaks to thoughtful engineering. Pair it with charcoal architectural shingles and matte black accents to craft a cohesive, contemporary profile. It’s the discreet luxury layer every polished exterior deserves.

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Protect your roof with contractor-grade strength—add this 10-square synthetic underlayment to your project today.

Installation