Grip-Rite 36-in x 32.8-ft (300-sq ft) Fiberglass Base Sheet Roof Underlayment
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 6 - Jul 11

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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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Ray G.
Cuba, US
★★★★★ 5
FINALLY a decent phone mount!!!
I’ve tried about 5 different phone mounts in my 2018 Tacoma and ended up throwing them all away. They’re either too bulky, too weak to hold the phone, awkward or just won’t stay in place. I won’t install a holder that requires adhesive or screws into the dash (or anywhere) in my truck. This holder is the answer. Fits perfectly, doesn’t damage your vehicle. Holds the phone really solidly. This is a very sturdy mount. It’s a bit pricy in comparison to other phone mounts out there. IMO, it’s worth every penny. Materials are far superior to your typical mount, which I’m sure drives up the manufacturing costs. Again, worth every penny. Also, it’s a small business based in the US. Love supporting our small businesses. GREAT MOUNT!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2022
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Verified Purchase
Lucio Lemus
Houston, US
★★★★★ 5
This is it
For the longest time I’ve STRUGGLED with finding a mount the works in my Tacoma. I don’t do off reading but every mount I use just can’t hang!! I got this and immediately impressed with the build quality. It’s entirely metal and can tell it’s sturdy. It took me 1 minute to install and the give you the one tool you need to install. I have an iPhone 13 Pro Max that baby isn’t going anywhere. You can adjust it with out unscrewing anything and it stays put. If you have a Tacoma stop wasting money on cheap mounts this is the last one you need I promise you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 29, 2024
S
Verified Purchase
Suraj
Whiting, US
★★★★★ 5
The only phone mount for a taco
This is a really quality product. So quality that I wish they made this for some of my other cars, I don't ever wanna use another phone holder. I was a bit skeptical on the longevity of the spring that holds it open, but a few months later and it feels just as sturdy as new. Fit is immaculate, the phone stays put. Worth the price. You will see when you see the machine finish on this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2025
K
Verified Purchase
Keith M
Lowell, US
★★★★★ 5
Fantastic Mount especially on rough Roads
Robust and discretely positioned mount. This mount is the real deal. It is by far the highest quality most stable mount that I've ever had in my Tacoma pickup. I also really like that it's positioned closer to the steering wheel in instead of in the windshield, making it easier to view. Very highly recommended!!
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Reviewed in the United States on January 27, 2026
R
Verified Purchase
Rosati
Louisville, US
★★★★★ 5
Perfecto Product!!
I rarely write reviews, however on this product I need too. This clearly is a pricey phone mount, but after reading so many reviews I went for it & purchased. After opening, I immediately could see & feel the quality of material used. Installation was surprisingly easy & quick to my Tacoma. The mount is very firm, sturdy, very adjustable, perfectly designed product. For as costly as this was, I have absolutely no regrets! Totally can recommend this product to anyone with a Tacoma within the stated production years. So as so many others have said accurately in reviews, I am beyond satisfied even with the cost in mind.
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Reviewed in the United States on June 8, 2023

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