The 30-50mm Unilin Thin-R TR/MG Tapered Roof Insulation Board is a high-performance polyisocyanurate product featuring mineral-coated glass facers on both surfaces. Engineered for installation beneath single-ply fully adhered roof membranes, single-ply waterproofing systems, and partially bonded built-up felt applications. This board carries an Environmental Product Declaration (EPD) certified by IGBC. For technical guidance, contact our specialist support team.
Range: 30-50mm TR/MG
Thickness: 30-50mm, 50-70mm, 70-90mm, 90-110mm (1:60)
Length: 1200mm
Width: 1200mm
Board Size: 1200mm x 1200mm
Pack Size: 6 sheets
Pack Coverage: 8.64
Pack Weight: 12kg
Thermal conductivity: 0.024 – 0.027 (WmK)
Compressive Strength: >150 kPa @ 10% compression
Material: PIR
Inner facing Mineral coated glass facer
Outer facing Mineral coated glass facer
Application: Flat Roof insulation
Density (Foam Core): 32 kg/m3
Reaction to Fire: Euroclass E
A vapour control layer should be lapped and sealed beneath the insulation board. When installing fully adhered systems, board joints must be taped in accordance with the adhesive system specifications.
Insulation boards are embedded within a bitumen layer on 3G type felt to BS EN 13707: 2013 (Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing) adhered to the substrate. Unilin recommends all systems incorporate mechanical fixings or be bonded using alternative suitable adhesive products.
Explore our full range of Unilin insulation products and refine your selection by thickness or coverage using the filters on the left. For project-specific advice or bulk pricing quotations, contact us via phone at +4402038839057, email sales@insulationbee, or use our Live Chat service. We provide competitive UK Insulation pricing.












