SKU: 40421034020

U.S. Gypsum Securock Gypsum-Fiber Roof Board, 1/4 in. x 4 ft. x 4 ft.

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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

U.S. Gypsum Securock Gypsum-Fiber Roof Board, 1/4 in. x 4 ft. x 4 ft.Securock 1 4 in Gypsum Fiber Roof Board (4x4) High performance USG Securock gypsum fiber roof board engineered for low slope roofing systems. Its fiber reinforced, uniform core delivers strength, water resistance, and reliable adhesion across adhered systems. Key Features: Fiber Reinforced Strength: Uniform composition provides durability through the core with no facer to delaminate Low Water Absorption: Designed for superior bond and reduced moisture

Securock 1/4-in Gypsum-Fiber Roof Board (4x4)

High-performance USG Securock gypsum-fiber roof board engineered for low-slope roofing systems. Its fiber-reinforced, uniform core delivers strength, water resistance, and reliable adhesion across adhered systems.


Key Features:

  • Fiber-Reinforced Strength: Uniform composition provides durability through the core with no facer to delaminate
  • Low Water Absorption: Designed for superior bond and reduced moisture uptake in adhered roofing systems
  • High Wind-Uplift Ratings: Consistent core construction supports robust performance in approved assemblies
  • Sustainable Content: Manufactured with 97% recycled material for environmentally conscious projects
  • Versatile Compatibility: Suitable for single-ply, fluid-applied, spray foam, built-up, metal, and modified bitumen roofs

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Thickness 1/4 in (6.4 mm)
Length 4 ft (1220 mm)
Width 4 ft (1220 mm)
Material Gypsum-fiber (facer-free, fiber-reinforced uniform composition)
Certifications/Approvals UL Classified; FM Approved; LEED; SCS Global Services Certified
Standards ASTM D3273; ASTM C1278; ASTM E84
Intended Use High-performance roof board for low-slope roofing systems
Compatible Roofing Systems Single-ply; Fluid-applied; Spray foam; Built-up; Metal; Modified bitumen
Recycled Content 97% recycled material
Item Weight 27 lb per sheet
Style Roofing Insulation
Manufacturer Product Number USG14SR4GF
Manufacturer Number 61050410

Frequently Asked Questions (FAQ):

Q: What roofing systems is this board compatible with?
A: Single-ply, fluid-applied, spray foam, built-up, metal, and modified bitumen systems.


Q: Is the board moisture resistant?
A: Yes. Its uniform gypsum-fiber core provides water resistance and low absorption to enhance adhesion.


Q: Does it have third-party approvals?
A: Yes. It is UL Classified and FM Approved, and meets ASTM D3273, ASTM C1278, and ASTM E84; also recognized for LEED and SCS certifications.


Q: What are the panel dimensions and thickness?
A: 1/4 inch thick, 4 feet by 4 feet.


Q: What is the weight of a sheet?
A: Approximately 27 lb per sheet.


Quiet Strength for Confident Roof Design

This gypsum‑fiber board brings a refined rigor to the roofscape—sleek, understated, and unwavering. The uniform, facer‑free core is the hero, ensuring a smooth, resilient substrate that performs beautifully beneath any membrane. Pair it with clean metal edge details and a monochrome membrane for a crisp, architectural silhouette. It’s an essential layer of stability and poise for truly elevated, modern envelopes.


Choose Securock Gypsum-Fiber Roof Board today for a strong, moisture-resistant substrate that elevates performance across your low-slope roofing system.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 40421034020

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4.8 ★★★★★
Based on 6 reviews
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Product Reviews
L
Verified Purchase
Lisa
Chelsea, US
★★★★★ 5
Great for blankets
Great for making sherpa or fur blankets soft again after wash. I imagine it'll work well for fur hoods as well. It did a good job of removing lose hair fibers and the quality is good, even if it's extra spikey. Overall, affordable solution and good looking brush to rejuvenate faux fur
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
A
Verified Purchase
And N
Omaha, US
★★★★★ 5
Great but Pain
It’s alright, does the job as it is supposed to. It’s easy to use and helped fix my Uniqlo jacket that was all matted. It didn't restore it to it's original form however it did unmat it. If I bought this way before and touched up the jacket, I think it would of been perfect to this day still. Maintenance of those jackets are a must! The brush is strong and works well for fluffing it up because of the metal wiring. The only bad parts are that it can hurt if you accidentally poke or scratch yourself, I actually got cut by it when I quickly was brushing. It’s kind of hard to get the lint off the brush but it's better than others and might hurt because of the metal. But overall, it’s a cool tool that makes my jacket fluff again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2024
W
Verified Purchase
Watasnozle
Louisville, US
★★★★★ 4
Works well, however…
Purchased this to give life back to my Sherpa backed blankets. This is a well made brush handle is comfortable. The teeth are strong and durable. They did not bend around while I used it and maintained its shape. The problem I guess I’m seeing is that it doesn’t get deep down into the fabric to it’s just a surface “petting”. Maybe if the teeth were further apart or something. But does seem to provide some form of fluff.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
E
Verified Purchase
Epona65770
Massapequa, US
★★★★★ 5
Very useful
Works great on polar fleece. I also use it gently on. My jeans to get rid of dig hair. Speaking of dog hair, I have been known to run this gently over the dog's coat.works great for that too.
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Reviewed in the United States on May 5, 2026
M
Verified Purchase
Meagan
Fort Morgan, US
★★★★★ 5
Works great, faux fur blanket is like new again!
Just used this on a faux fur pet blanket that I have had for 2 years and never brushed. It worked amazingly! Since it was so matted it took a bit to do the whole blanket (50” x 40”) but short strokes got it looking like new very easily. Some fibers came out in the brushing along with pet hairs, but the rug shedding was minimal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026

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