SKU: 10211065714

Owens Corning Fiberglas Reinforced Felt 36-in x 141.5-ft 400-sq ft Felt Roof Underlayment

Sale price$31.82 Regular price$35.36
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Owens Corning Fiberglas Reinforced Felt 36-in x 141.5-ft 400-sq ft Felt Roof UnderlaymentFiberglass reinforced felt roof underlayment, 400 sq ft Durable felt underlayment reinforced with fiberglass for flatter, more uniform shingle installation. Designed to help prevent water infiltration and resist tearing during installation. Ideal 36 in x 141. 5 ft roll covers 400 sq ft for efficient roofing projects. Key Features: Fiberglass Reinforcement: Supports flatter, uniform shingle applications and added strength Water Protection: Helps

Fiberglass-reinforced felt roof underlayment, 400 sq ft

Durable felt underlayment reinforced with fiberglass for flatter, more uniform shingle installation. Designed to help prevent water infiltration and resist tearing during installation. Ideal 36-in x 141.5-ft roll covers 400 sq ft for efficient roofing projects.


Key Features:

  • Fiberglass Reinforcement: Supports flatter, uniform shingle applications and added strength
  • Water Protection: Helps prevent water infiltration from wind-driven rain under shingles
  • Tear-Resistant Durability: Stronger than standard felt; stands up to foot traffic and wind during install
  • Efficient Coverage: Convenient 400-sq ft roll size for fewer seams and faster installation
  • Nail Application: Compatible with asphalt shingles; straightforward fastening

Specifications Table:

Specification Details
Series Name Fiberglas Reinforced Felt
Coverage Area (Sq. Feet) 400
Length (Feet) 141.5
Width (Inches) 35 (trusted title lists 36 in)
Application Method Nail
For Use with Asphalt Shingles Yes
For Use with Flat Roofing No
For Use with Metal Roofing No
For Use with Wood Shakes No
Ice and Waterproofer Yes
Material Felt
Warranty None
CA Residents: Prop 65 Warning(s) Yes
UNSPSC 30151500

Frequently Asked Questions (FAQ):

Q: What roofing types is this underlayment compatible with?
A: Designed for use with asphalt shingles; not intended for flat, metal, or wood shake roofing.


Q: How is it installed?
A: Apply over the roof deck and fasten with nails, following local codes and manufacturer instructions.


Q: Does it provide water resistance?
A: Yes—when properly installed it helps prevent water infiltration from wind-driven rain under shingles.


Q: What is the roll size and coverage?
A: Each roll is approximately 36 inches wide by 141.5 feet long and covers 400 square feet.


Q: Is there a warranty?
A: No manufacturer warranty is listed for this product.


A Sleek, Resilient Foundation for Refined Rooflines

This fiberglass-reinforced felt lays down a refined, uniform base that elevates the silhouette of any shingled roof. I love its confident black finish—clean lines that promise both beauty and performance. Pair it with architectural shingles in cool charcoal tones for a crisp, modern envelope. A smart, resilient underlayment like this is a quiet luxury—essential to a roof that looks impeccable and lives well.


Strengthen your roof’s performance and finish—add this Owens Corning fiberglass-reinforced felt underlayment to your project today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10211065714

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4.2 ★★★★★
Based on 16 reviews
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Verified Purchase
Ruby
Los Angeles, US
★★★★★ 5
Buy it
If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
M
Verified Purchase
Make it Do!
Whiting, US
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
S
Verified Purchase
SeanCeltiad
Houston, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
L
Verified Purchase
Larry
Omaha, US
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
R
Verified Purchase
Robert III
West Palm Beach, US
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026

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