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:

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.