SKU: 48796340903

Grip-Rite 36-in x 32.8-ft (300-sq ft) Fiberglass Base Sheet Roof Underlayment

Sale price$48.10 Regular price$53.44
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Grip-Rite 36-in x 32.8-ft (300-sq ft) Fiberglass Base Sheet Roof UnderlaymentGrip Rite Fiberglass Roof Underlayment, 36 in x 32. 8 ft A rugged fiberglass base sheet designed for flat roofing applications, this Grip Rite roll covers 300 sq ft and lays flat for fast installation. Ply lines and strong nail holding performance provide a reliable substrate for multi ply roofing systems. Key Features: Fiberglass Construction: Durable base sheet engineered for strength and nail holding ability Easy Install: Rolls out flat with

Grip-Rite Fiberglass Roof Underlayment, 36-in x 32.8-ft

A rugged fiberglass base sheet designed for flat roofing applications, this Grip-Rite roll covers 300 sq ft and lays flat for fast installation. Ply lines and strong nail-holding performance provide a reliable substrate for multi-ply roofing systems.


Key Features:

  • Fiberglass Construction: Durable base sheet engineered for strength and nail-holding ability
  • Easy Install: Rolls out flat with printed ply lines to speed alignment and fastening
  • Flat-Roof Ready: Designed for use with flat roofing; not for asphalt shingles, metal, or wood shakes
  • Generous Coverage: 36 in x 32.8 ft roll covers approximately 300 sq ft
  • Standards & Warranty: Meets ASTM 4601 Type 1; backed by a 1-year limited warranty

Specifications Table:

Specification Details
Coverage Area 300 sq ft
Length 32.8 ft
Width 36 in
Material Fiberglass
Application Method Nail
For Use with Flat Roofing Yes
For Use with Asphalt Shingles No
For Use with Metal Roofing No
For Use with Wood Shakes No
Warranty 1-year limited
Standards ASTM 4601 Type 1
UNSPSC 30151500

Frequently Asked Questions (FAQ):

Q: Can this underlayment be used under asphalt shingles?
A: No. It is intended for flat roofing applications and not for asphalt shingles.


Q: How much area does one roll cover?
A: Approximately 300 square feet per roll.


Q: What is the installation method?
A: Nailed installation; align using the printed ply lines and fasten per local codes.


Q: Is it suitable for metal or wood shake roofs?
A: No, it is not recommended for metal roofing or wood shakes.


Q: Does it meet any standards?
A: Yes, it meets ASTM 4601 Type 1 specifications.


A Sleek, Structured Foundation for Modern Flat Roofs

This fiberglass base sheet sets a clean, confident groundwork that refines the silhouette of a flat roof. I love the crisp ply lines—they guide an impeccably tailored installation, elevating the finish. Pair it with minimalist flashing and tonal gravel for a polished, architectural statement. It’s a quiet essential that underpins the luxury of a well-executed envelope.


Elevate your flat roof system with Grip-Rite’s fiberglass base sheet—order today for fast, reliable installation and lasting performance.

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: 48796340903

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4.8 ★★★★★
Based on 26 reviews
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Verified Purchase
G Bowers
Dallas, US
★★★★★ 5
If you’re going for cushion and looks, these do it.
Size: 9.5, Color: Grey
These are massively cushiony. They fit as sized, slip on well, and look very good. It seems like they should hold up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
M
Verified Purchase
Mike L
West Palm Beach, US
★★★★★ 3
Nice and affordable, but poor arch support and mushy insoles.
Size: 11 Wide, Color: Black
These shoes look nice and feel comfortable at first, but the soft memory foam type bottoms on these don't provide enough support. I am a big guy and find that over the course of the day the insoles compress and my feet end up at an angle. After a long day on my feet, my dogs are barking and my leg muscles are tight I think from walking on an angle. I added my GoodFeet arch support and they help a little with arch support, but the insole is so soft that it absorbs the bulge quite a bit. If you're skinny and need a decent looking pair of shoes on the cheap, they might be ok for you. I would not recommend long walks or strenuous activity in them. I will say they are lightweight, breathable and a decent value if you don't have flat feet and a beer belly (I don't even drink beer, how'd that happen, WTH?!)
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Reviewed in the United States on June 13, 2025
T
Verified Purchase
Texas
Alexandria, US
★★★★★ 5
Love the shoes.
I love these shows. Super cushioned and comfortable. Makes casual but professional dress so easy. Buying different color because I like them so much. They are true to size. Maybe a tad short in toe box.
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Reviewed in the United States on March 8, 2026
A
Verified Purchase
Alicia Bauer
Waukegan, US
★★★★★ 5
Stylish, Comfortable, and Great for Everyday Wear
Size: 11, Color: Grey
The Marc Joseph New York Men’s Edison Street shoes are a standout — stylish enough for work or a night out, but comfortable enough for daily wear. The hands-free technology makes them easy to slip on and off without sacrificing fit or support. They have a polished, classic look that pairs well with both casual and dressier outfits, and the comfort level stayed high even after a full day on my feet. Good quality, flattering design, and a versatile choice if you want shoes that look sharp and feel great. Would recommend and buy again.
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Reviewed in the United States on February 11, 2026
S
Verified Purchase
Shamrock93
Lake Worth, US
★★★★★ 5
Just Slip On & Go
Size: 13, Color: Black/Black
These are honestly one of the easiest shoes I’ve owned. You just step in and go, no laces to deal with, but they still have that lace look which I like. I’ve had them for close to a year and they’ve held up well. Comfortable enough for everyday use. I liked them enough and got a few different versions of the same shoe. The elastic fit is what makes them stand out. If you want something simple, comfortable, and still a little dressy, these are solid.
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Reviewed in the United States on April 5, 2026

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