GAF STRUCTODEK High Density Fiberboard Roof Insulation Cover Board, 1/2 in., 4 ft x 4 ft
SKU: 56768694481

GAF STRUCTODEK High Density Fiberboard Roof Insulation Cover Board, 1/2 in., 4 ft x 4 ft

Sale price$14.43 Regular price$16.03
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Description

GAF STRUCTODEK High Density Fiberboard Roof Insulation Cover Board, 1/2 in., 4 ft x 4 ftSTRUCTODEK HD Fiberboard Roof Cover Board, 1 2 in. 4x4 High density STRUCTODEK fiberboard cover board delivers strong adhesion and durability for commercial roofing systems. Its Primed Red Coating promotes solid membrane bonding while optimizing adhesive coverage for efficient, cost effective installations. Key Features: High Density Performance: Engineered fiberboard resists compression and provides a stable substrate for roof membranes Primed Red

STRUCTODEK HD Fiberboard Roof Cover Board, 1/2 in. 4x4

High-density STRUCTODEK fiberboard cover board delivers strong adhesion and durability for commercial roofing systems. Its Primed Red Coating promotes solid membrane bonding while optimizing adhesive coverage for efficient, cost-effective installations.


Key Features:

  • High-Density Performance: Engineered fiberboard resists compression and provides a stable substrate for roof membranes
  • Primed Red Coating: Enhances membrane adhesion and helps maximize square-foot coverage per gallon of adhesive
  • Code Compliant: Meets ASTM C208 Type II and multiple UL, FM, and Miami-Dade approvals for trusted use
  • Convenient Size: 1/2 in. thickness in a 4 ft x 4 ft panel for easy handling and layout
  • Versatile Application: Suitable as a cover board over roof insulation in a variety of commercial roofing systems

Specifications Table:

Specification Details
Brand GAF
Product Name STRUCTODEK High Density Fiberboard Roof Insulation Cover Board
Thickness 1/2"
Dimensions 4' x 4'
Item Weight 13.6 lb
Style Roofing Insulation
Unit of Measure SQ | PC
Manufacturer Number FB440.5
Product Number GAF05FB4HD
Applicable Standards/Approvals ASTM C208 Type II Grades 1 & 2; CAN/ULC-S706-09 Type II Classes 1 & 2; UL Classified UL 790; CAN/ULC-S107; FM Approved Class 1 (FM 4450/4470); Canadian Evaluation CCMC #13186-L; FBC FL #13792; LEED; Miami-Dade County Approved
Long Description STRUCTODEK High Density Fiberboard Roof Insulation possesses unique bonding characteristics for superior adhesion with current membranes and adhesives; the Primed Red Coating allows a solid membrane bond while optimizing adhesive coverage.

Frequently Asked Questions (FAQ):

Q: What is the thickness and size of this board?
A: This variant is 1/2 inch thick and measures 4 feet by 4 feet.


Q: How does the Primed Red Coating help?
A: It promotes a strong membrane bond while improving adhesive spread rate for efficient coverage.


Q: What standards and approvals does it meet?
A: ASTM C208 Type II (Grades 1 and 2), CAN/ULC-S706-09 Type II, UL 790, CAN/ULC-S107, FM 4450/4470, CCMC #13186-L, FBC FL #13792, LEED, and Miami-Dade County Approved.


Q: Where is it used in a roofing system?
A: As a cover board over insulation to provide a smooth, durable substrate for the roof membrane.


Q: What is the unit weight?
A: Approximately 13.6 lb per board.


A Refined, Resilient Foundation for Modern Rooflines

This board introduces a rich, earthy red surface that brings quiet confidence to the unseen layers of design. Its primed finish is the hero—creating an impeccably smooth canvas for membranes to adhere with precision. Pair it with clean-lined metal edges and a monochrome membrane for a crisp architectural statement. It’s an essential building block of luxurious, high-performance roofing craft.


Choose STRUCTODEK HD today for a stronger, faster-adhering roof system that’s built to last.

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: 56768694481

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Ryan
Carnegie, US
★★★★★ 3
Culinary grade matcha. Its okay for mixing in small amounts with other flavors to drink
Flavor Name: Culinary Matcha-3.53oz
I ordered this Matcha for the affordability. The matcha I’ve been drinking is more expensive and as I have been drinking more Matcha lately I wanted to try to get more for my money. Now, I don’t want to sound like a Matcha snob, but I really wasn’t happy with the quality or the taste of this Matcha. It was lower quality than I was expecting. First of all it’s a duller green color, which is just appearance I understand and I can overlook that, but it says something about the quality of the harvest. The taste, however, is much more bitter than I am accustomed to. Not an enjoyable clean Matcha flavor. I have found that it absolutely needs some sweetener and milk to make it passable and I’ve even mixed a little cocoa powder with it to mask the dusty flavor. That helps. Also, it is not ground very finely as other Matcha powders. I can feel the Matcha particulate in the tea when I drink it and it settles to the bottom of the cup very quickly. If you’re going to be cooking with Matcha, then this is fine. Or if you are going to be mixing it with milk and sweetener or other flavors, then this isn’t too bad. But if you like to enjoy the pure flavor of Matcha tea with nothing added to it then I would not recommend this one, it’s pretty harsh. Still, it is very affordable and it can get you through when money is tight.
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Reviewed in the United States on January 11, 2026
C
Verified Purchase
Cerrah80
Los Angeles, US
★★★★★ 5
Good matcha for drink making
Flavor Name: Culinary Matcha-3.53oz
We love using this with our matcha kit. It is tasty and blends well.
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Reviewed in the United States on April 20, 2026
M
Verified Purchase
Melissa Porter
Chelsea, US
★★★★★ 5
Matcha Obsessed
Flavor Name: Culinary Matcha-3.53oz
This matcha blends well with fresh steeped purified water. It's brightness is fascinating and delicious. It's soothing. Follow the recommended amounts precisely.
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Reviewed in the United States on January 8, 2026
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Cate
Grantham, US
★★★★★ 5
Great matcha
Flavor Name: Culinary Matcha-3.53oz
Robust, fine quality, lovely clean taste.
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Reviewed in the United States on January 2, 2026
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Victoria Palmer
Cuba, US
★★★★★ 1
Not ver good!
Flavor Name: Culinary Matcha-3.53oz
Taste is like grass.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025

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