SKU: 66275645487

Johns Manville Tapered FESCO Perlite-Based Cover Board, D4 (1.75"–2.25"), 2' x 4', 32 Sq. Ft. Bundle

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Description

Johns Manville Tapered FESCO Perlite-Based Cover Board, D4 (1.75"–2.25"), 2' x 4', 32 Sq. Ft. BundleTapered FESCO Perlite Cover Board, D4 2' x 4' Factory fabricated roofing cover board made from expanded perlite blended with binders and fibers for durable thermal performance. Pre cut tapered panels deliver positive drainage and efficient insulation for commercial roof systems. Key Features: Perlite Composition: Expanded perlite with selected binders and fibers for insulating efficiency Tapered Design: Pre cut to several slopes to promote drainage

Tapered FESCO Perlite Cover Board, D4 2' x 4'

Factory-fabricated roofing cover board made from expanded perlite blended with binders and fibers for durable thermal performance. Pre-cut tapered panels deliver positive drainage and efficient insulation for commercial roof systems.


Key Features:

  • Perlite Composition: Expanded perlite with selected binders and fibers for insulating efficiency
  • Tapered Design: Pre-cut to several slopes to promote drainage and reduce ponding water
  • Convenient Size: 2' x 4' panels in a 32 sq. ft. bundle; 4 pieces per bundle
  • Thickness Range: D4 profile (1.75" to 2.25") for targeted build-up
  • Tested & Listed: UL Classified, FM Approved, meets ASTM C728 Type 1

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Brand Johns Manville
Product name Tapered FESCO Perlite-Based Cover Board
SKU / Material Number 12620
Product number JMCPERD4
Board dimensions 2' x 4'
Thickness D4 (1.75" to 2.25")
Bundle coverage 32 sq. ft.
Pieces per bundle 4
Unit of measure BDL
Item weight 48 lb
Style / Category Roofing Insulation
Applicable standards UL Classified; FM Approved; ASTM C728, Type 1
Description Factory-fabricated insulation panel composed of expanded perlite with binders and fibers; pre-cut to several slopes for tapered applications

Frequently Asked Questions (FAQ):

Q: What is the board made of?
A: It’s composed of expanded perlite blended with binders and fibers, forming a rigid roofing cover board.


Q: What are the panel dimensions and coverage?
A: Each panel is 2' x 4'. A bundle covers 32 sq. ft. and includes 4 pieces.


Q: What is the thickness of the D4 variant?
A: D4 panels range from 1.75 inches to 2.25 inches.


Q: Is it approved for commercial roofing systems?
A: Yes. It is UL Classified, FM Approved, and meets ASTM C728 Type 1.


Q: How does the tapered design help?
A: The pre-cut slopes facilitate positive drainage, helping minimize ponding water on the roof.


Sculpted Slope, Streamlined Roof

This tapered board shapes a roof with quiet precision, guiding water with architectural intention. Its perlite core offers a refined, lightweight strength, while the D4 profile builds elegant elevation without bulk. Pair it with clean-lined membranes and metal edge details for a crisp, contemporary silhouette. It’s a subtle yet essential layer that elevates performance and the poetry of a well-finished roof.


Choose Tapered FESCO today to achieve efficient roof drainage and proven thermal performance with trusted approvals.

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: 66275645487

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4.8 ★★★★★
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E
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EMILY DEROUEN
Grantham, US
★★★★★ 4
Functions well
Color: Black
This 3-in-1 wireless charging station works really well and makes charging everything in one spot super convenient. I love being able to charge my phone, watch, and AirPods all at the same time, and the setup looks clean and organized on my nightstand. The magnetic charging works great and charges devices quickly. The only downside is that the MagSafe attachment comes off pretty easily, so you have to be a little careful when placing or removing your phone. Overall, it’s a great charger that works well and looks nice, just wish the MagSafe connection was a bit more secure.
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Reviewed in the United States on March 1, 2026
B
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bbreader
Whiting, US
★★★★★ 5
Apple products charger
Color: Black
Great! Easiest way to charge phone. Apple Watch and ear pods
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Reviewed in the United States on April 4, 2026
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Jacob schiltz
Boise, US
★★★★★ 5
2+ Years still working strong!
Color: Black
I’ve been using this charger almost daily since august of 2023 and it still works perfectly charged my iPhone Apple watch and AirPods nightly with cases on the iPhone and AirPods and I have yet to have a problem it’s charged them fully each night! Would definitly recommend if asked about it!
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Reviewed in the United States on March 18, 2026
C
Verified Purchase
C. W. White
New York, US
★★★★★ 4
Updating my review, this is a very good product and I was wrong!
Color: White
OK, feeling like a bonehead. Originally unboxed and connected this device to my desktop power supply for a USB powersource. It did not have enough ampirage to charge my watch. I swaped that out before tossing, and found that the supplied power source worked just fine and the device charges both my phone and watch beautifully. So I'm a dope, the product is great, and I am here to correct the review! Given that said, my one gripe is that the adjustiblity of the mount is a bit limited. It's totally functional, but doesn't pivot 360 degrees, and does not telescope like I was expecting. Regardless, it is sleek, a huge space saver, and dejunkified my desktop a great deal. I would defintely buy another one of these. ORIGINAL REVIEW NOW RETRACTED: Annoying. Doesn’t operate as advertised. Watch charger totally inoperable. Mag charger does work. Very disappointing!
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Reviewed in the United States on May 30, 2024
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Janet Fruehauf and family
Fort Morgan, US
★★★★★ 1
Doesn't fit 2015 C300 4matic mercedes
Color: Textured
It doesn't fit 2015 C300 4matic mercedes
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Reviewed in the United States on May 30, 2026

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