Johns Manville DensDeck Prime Gypsum Cover Board — 1/4 in. Thick, 4 ft x 4 ft
SKU: 25803879555

Johns Manville DensDeck Prime Gypsum Cover Board — 1/4 in. Thick, 4 ft x 4 ft

Sale price$15.62 Regular price$17.36
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Description

Johns Manville DensDeck Prime Gypsum Cover Board — 1/4 in. Thick, 4 ft x 4 ftDensDeck Prime 1 4 in. Gypsum Roof Cover Board (4x4) Coated facer gypsum cover board engineered for fully adhered commercial roofing systems. Delivers broad adhesive compatibility and durable protection over insulation while meeting key fire and performance approvals. Key Features: Adhesive Friendly Facer: Coated fiberglass facer enhances bond strength with a wide range of roofing adhesives. Durable Protection: Adds impact and puncture resistance over

DensDeck Prime 1/4 in. Gypsum Roof Cover Board (4x4)

Coated-facer gypsum cover board engineered for fully adhered commercial roofing systems. Delivers broad adhesive compatibility and durable protection over insulation while meeting key fire and performance approvals.


Key Features:

  • Adhesive-Friendly Facer: Coated fiberglass facer enhances bond strength with a wide range of roofing adhesives.
  • Durable Protection: Adds impact and puncture resistance over insulation to extend roof system life.
  • Trusted Approvals: UL Classified, FM Approved, Miami-Dade County Approved for code-driven projects.
  • Fire and Mold Performance: Manufactured to ASTM C1177 and non-combustible per ASTM E136.
  • Jobsite Ready Size: 1/4 in. thickness in a manageable 4 ft x 4 ft board for easier handling.

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Brand Johns Manville
Product name DensDeck Prime Gypsum Cover Board
Thickness 1/4 in
Dimensions 4 ft x 4 ft
Unit of measure PC (piece); SQ note present in data
Approximate weight 18 lb per board
Approvals/Certifications UL Classified; FM Approved; Miami-Dade County Approved
Standards ASTM C1177; ASTM E136
Style/Category Roofing Insulation
Manufacturer number 70004311
Product number JMC14DDP4

Frequently Asked Questions (FAQ):

Q: What are the board dimensions and thickness?
A: This variant is 4 ft x 4 ft and 1/4 in. thick.


Q: Is it suitable for fully adhered systems?
A: Yes, the coated fiberglass facer is designed for excellent compatibility with common roofing adhesives used in fully adhered membranes.


Q: What approvals does it have?
A: It is UL Classified, FM Approved, and Miami-Dade County Approved.


Q: Which ASTM standards apply?
A: It meets ASTM C1177 and is non-combustible per ASTM E136.


Q: How much does a board weigh?
A: Approximately 18 lb per piece for this 4x4, 1/4 in. board.


A Quiet Shield for High-Performance Roofscapes

DensDeck Prime introduces a refined layer of calm beneath the roofline, delivering strength with a sleek, coated surface. The fiberglass facer is the understated hero, ensuring a confident bond that keeps the assembly crisp and true. Pair it with a dark, monolithic membrane to heighten that tailored, architectural silhouette. It’s a discreet essential that elevates durability into an expression of modern luxury.


Choose DensDeck Prime today for a cleaner bond, tougher roof, and code-ready performance on your next project.

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: 25803879555

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Mary Jackson
Waukegan, US
★★★★★ 5
Great size for small toys
Style: Medium 2.9" (4 Pack A)
My poodle love these. Small enough for him to grab from his toy basket.
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Reviewed in the United States on May 25, 2026
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punkindrublk
Massapequa, US
★★★★★ 5
Squeek warning!
Style: Medium 2.9" (4 Pack B)
My dog absolutely loves these! And they seem durable enough to last a while. But be warned, lol! (See video)
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Reviewed in the United States on April 14, 2026
A
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angela cuozzo
Fort Morgan, US
★★★★★ 5
Soft plush
Style: Medium 2.9" (4 Pack A)
They are so soft! My dogs love e them
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Reviewed in the United States on May 19, 2026
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Lee Schake
Lake Worth, US
★★★★★ 3
Good quality
Style: Small 2.6" (6 Pack)
These were ok not what I was looking for
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Reviewed in the United States on April 23, 2026
A
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Anne
Alexandria, US
★★★★★ 5
great price. cute faces on balls.
Style: Small 2.6" (6 Pack)
cute and funny faces, my 2 small dogs love them
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Reviewed in the United States on January 4, 2026

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