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home > RELIABILT N 48-in x 100-ft (100-sq ft) Synthetic Roof Underlayment, RB04100C > RELIABILT N 48-in x 100-ft (100-sq ft) Synthetic Roof Underlayment, RB04100C

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RELIABILT N 48-in x 100-ft (100-sq ft) Synthetic Roof Underlayment, RB04100CRELIABILT Synthetic Roof Underlayment, 48 in x 100 ft A durable, lightweight synthetic underlayment designed to protect roofs as a secondary water shedding barrier. The RELIABILT N series rolls out flat, resists tearing in high winds, and installs easily with clear fastening guides. Key Features: Durable Synthetic Build: 4 layer technology resists stretching, tearing, and blow off in high winds Easy, Flat Install: Rolls out smoothly with clearly

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RELIABILT Synthetic Roof Underlayment, 48-in x 100-ft

Name: RELIABILT N 48-in x 100-ft (100-sq ft) Synthetic Roof Underlayment, RB04100C
Brand: www.midwoodautocraft.com
SKU: 98334708600
Price: 34.28 USD
Availability: InStock
Rating: 4.5526 (2039 reviews)

A durable, lightweight synthetic underlayment designed to protect roofs as a secondary water-shedding barrier. The RELIABILT N series rolls out flat, resists tearing in high winds, and installs easily with clear fastening guides.

Key Features:

Durable Synthetic Build: 4-layer technology resists stretching, tearing, and blow-off in high winds
Easy, Flat Install: Rolls out smoothly with clearly marked fastening guides for faster application
Weather Protection: Helps reduce leaks from severe weather as a secondary water-shedding layer beneath primary roofing
Versatile Compatibility: Suitable for asphalt shingles and wood shakes
Long-Lasting Assurance: Backed by a 20-year limited warranty

Specifications Table:

Specification	Details
Series Name	N
Material	Synthetic
Application Method	Nail
Coverage Area (Sq. Feet)	100
Length (Feet)	100
Width (Inches)	48
Weight (lbs.)	8.93
CA Residents: Prop 65 Warning(s)	No
Warranty	20-year limited
For Use with Asphalt Shingles	Yes
For Use with Metal Roofing	No
For Use with Wood Shakes	Yes
For Use with Flat Roofing	No
UNSPSC	30151500

Frequently Asked Questions (FAQ):

Q: What roofing materials is this underlayment compatible with?
A: It is designed for use under asphalt shingles and wood shakes; it is not intended for metal or flat roofing.

Q: How large is each roll and what area does it cover?
A: Each roll measures 48 inches wide by 100 feet long and covers 100 square feet.

Q: How is it installed?
A: Install using nails; follow the printed fastening guides on the sheet for proper placement.

Q: Is this a waterproof membrane?
A: No. It is a water-shedding secondary layer meant to be used beneath the primary roof covering.

Q: What is the warranty?
A: It includes a 20-year limited warranty.

Streamlined Shelter with Modern Resilience

This underlayment quietly elevates the roofscape with a refined, grid-lined surface that feels tailored and precise. I love the four-layer construction—it’s the invisible armor that keeps the architecture confident through seasons. Pair it with dark architectural shingles to heighten contrast and create a crisp, contemporary silhouette. Consider it an essential foundation for luxurious living that values longevity as much as style.

Protect your next roofing project with RELIABILT’s durable N-series underlayment—order a roll today and build in lasting confidence.