TRI-BUILT 2 in. 4 ft. x 4 ft. ISO II GRF Polyiso Roof Insulation Board

TRI-BUILT ISO II GRF roof insulation is a 2 in. thick polyisocyanurate board supplied in 4 ft. x 4 ft. panels. Each piece is sold individually, so order the quantity needed to cover your roof area. It installs over the roof deck beneath the roofing membrane or covering.

Key Features:

• 2 in. thickness: This panel is manufactured at a 2 in. thickness for added thermal value over the deck.
• 4 ft. x 4 ft. panel: The square 4 ft. x 4 ft. panel format is easy to handle, stack and cut on the roof.
• ISO II GRF: Part of the TRI-BUILT ISO II GRF roof insulation line.
• Lightweight panel: Each panel weighs approximately 6.08 lb for easier handling and installation.
• Sold per piece: Order by the piece; total coverage equals number of panels times 16 sq ft.

Specifications Table:

Coverage & How Much You Need:

Each 4 ft. x 4 ft. panel covers 16 sq ft before fastener spacing and fit allowances. Divide the total roof area by 16 and add a waste allowance to determine the number of panels to order.

Fit and Compatibility:

Designed for use within low-slope roofing assemblies under the membrane or roof covering. Compatible fasteners, plates and cover boards are sold separately; check the membrane manufacturer’s requirements for insulation attachment.

Frequently Asked Questions (FAQ):

Q: What is included in one order unit?
A: One order unit is a single 2 in. x 4 ft. x 4 ft. insulation panel weighing about 6.08 lb.

Q: How many panels do I need?
A: Divide your roof area in square feet by 16 (the area of one 4 ft. x 4 ft. panel) and add a waste allowance.

Q: How is it installed?
A: Insulation boards are typically mechanically fastened or adhered over the roof deck per the membrane manufacturer’s instructions and local code.

Q: What material is it?
A: It is TRI-BUILT ISO II GRF polyisocyanurate roof insulation.

Q: Can I order a partial square?
A: The item is sold by the piece, so you can order the exact number of panels you need.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Polyiso insulation boards like this TRI-BUILT ISO II GRF panel provide thermal value in low-slope roof assemblies and are commonly installed in one or more layers over the deck. Stagger joints between layers and secure per the system manufacturer’s fastening pattern. Confirm thickness and R-value requirements for your project and local energy code before ordering.

Handle panels with care and use fall protection when working on roofs, following manufacturer instructions and local building code.

Order TRI-BUILT 2 in. ISO II GRF 4 ft. x 4 ft. roof insulation panels for your next low-slope roofing project.