Rmax Ultra-Max 4ft x 8ft panels deliver high-performance roofing insulation with every thickness imaginable. Built for commercial and industrial roofs, this board keeps energy costs in check without skimping on durability.

Rmax Ultra-Max® is an energy-efficient thermal insulation board composed of a closed-cell polyisocyanurate (polyiso) foam core bonded to inorganic polymer coated glass fiber mat facers on both sides.

Key Features & Design

• Material & construction — Closed-cell polyisocyanurate (polyiso) foam core bonded to inorganic polymer coated glass fiber mat facers on both sides.
• Panel size — 4 ft x 8 ft panels.
• Energy efficiency — Designed for high-performance roof assemblies to help reduce heat transfer.
• Applications — Built-up roof, Modified bitumen, Mechanically attached single ply, Loose laid ballasted single ply, Metal panel roofing.
• Compliance — ASTM C1289 Type II, Class 2; International Building Code (ICC) Chapter 26 Section 2603, Foam Plastic; ASHRAE 90.1; Miami-Dade County Product Control Approved; Florida Product Approval (FL11207); CA Insulation Directory.

Thickness Options & Pallet Details

• 1.5 in — LTTR 8.6; Pcs/Pallet 32; Sq Ft/Pallet 1024
• 1.75 in — LTTR 10.0; Pcs/Pallet 27; Sq Ft/Pallet 864
• 2 in — LTTR 11.4; Pcs/Pallet 24; Sq Ft/Pallet 768
• 2.5 in — LTTR 14.4; Pcs/Pallet 19; Sq Ft/Pallet 608
• 2.6 in — LTTR 15.0; Pcs/Pallet 18; Sq Ft/Pallet 576
• 3 in — LTTR 17.4; Pcs/Pallet 16; Sq Ft/Pallet 512
• 3.1 in — LTTR 18.0; Pcs/Pallet 15; Sq Ft/Pallet 480
• 3.5 in — LTTR 20.5; Pcs/Pallet 13; Sq Ft/Pallet 416
• 4 in — LTTR 23.6; Pcs/Pallet 12; Sq Ft/Pallet 384
• 4.25 in — LTTR 25.2; Pcs/Pallet 11; Sq Ft/Pallet 352

These pallet details show how thickness affects the number of sheets per pallet and the total square footage per pallet, helping you plan shipments and storage with precision.