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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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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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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4.9 ★★★★★
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Scots-Irish Lass (terri)
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Reviewed in the United States on May 9, 2026
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New York, US
★★★★★ 5
Beautiful blanket
Color: Goose Egg, Size: King (90 in x 108 in), Color: Goose Egg, Size: King (90 in x 108 in)
Really loving this blanket. It’s just beautiful - a step above the average chenille seemingly sold at every drug store/grocery store/shop. Has a lovely sectioned pattern and is generously sized for a king blanket. Plenty of room on both sides of our deep king mattress. Washes up very nicely.. still like new! Note of caution: The label says air or line dry, no heat. Usually I wouldn’t consider any vexing that can’t be regularly washed and dried. But since every chenille shrinks some.. I was careful to machine wash cold abs air dry in drier only and it didn’t shrink at all (go figure). Came out of drier nice and soft still. Great value for this price. Would also make an excellent gift for housewarming/wedding etc.
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Reviewed in the United States on April 30, 2026
J
J. E.
Fort Morgan, US
★★★★★ 5
Lightweight yet warm
Color: Blue Moment, Size: King (90 in x 108 in), Color: Blue Moment, Size: King (90 in x 108 in)
I got this blanket for my hubby and I to use at his parents house -- I got the king to use on a queen bed. It is very soft and fuzzy -- the cats really like it. It is very lightweight but keeps us warm on slightly chilly spring mornings. It machine washed and dried well with almost no lint. It looks good too. This review is for Berkshire Ribbed VelvetLoft® Blanket – 330gsm Medium Weight Plush, Extra Soft & Warm Plush Blanket for Bedroom, Couch, Travel – Durable & Easy Care(Blue Moment, King Size 90" x 108")
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Reviewed in the United States on May 20, 2026
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Mike E - Houston, TX
Natrona Heights, US
★★★★★ 3
Mediocre blanket, not usual Berkshire quality
Color: Irish Cream, Size: Throw (50 in x 60 in)
Got to admit, wasn't overly impressed with this blanket. It came shedding like a dog out of the box. And it's pretty thin. I've bought quite a few Berkshire products and been very impressed, but this particular blanket I wasn't too impressed with..
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Reviewed in the United States on May 7, 2026
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Bree
Lexington, US
★★★★★ 5
Juicy couture throw blanket review
Color: Juicy Emblem Hot Pink, Size: 50"x70", Color: Juicy Emblem Hot Pink, Size: 50"x70"
Amazing blanket. The black color matches with the black comforter underneath. It's incredibly warm and soft and doesn't have any. It's quality is absolutely worth the cost. It's the perfect amount of thickness so that you don't overheat but that you are also not freezing. There is no shedding or fuzz That sheds. I think so cute.
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Reviewed in the United States on April 26, 2026

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