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Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 100mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 110mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 120mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 130mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 140mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 150mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 25mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 30mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 40mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 50mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 60mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 70mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Flat Roof MG Single Ply Insulation PIR Board 1200 x 600 x 90mm
Unilin / Xtratherm TR/MG is a high performance Polyisocyanurate with mineral coated glass facers suitable for use below single ply fully adhered roof membranes, single ply waterproofing systems and partially bonded built-up felt. Especially suited in... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 110mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 125mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 130mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 140mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 15mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 165mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 20mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 30mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 60mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200 x 80mm
Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
Unilin Thin-R Plus Hyfloor Insulation PIR Board T&G 2400 x 1200 x 100mm
An unbeatable choice in all thermal insulation, Hyfloor (T&G) has a superior thickness to performance ratio allowing the lower targets required under Building Regulations. XT/HYF (T&G) tongue and groove jointing offers a practical on-site solution that...
PIR Insulation Board
What are PIR boards?
PIR stands for Polyisocyanurate — a rigid type of thermal insulation made from plastic foam.
First introduced in the 1960s as an upgrade to PUR (Polyurethane) boards, PIR offers better insulation performance and versatility.
Where can PIR Insulation be used?
- Walls – Products like Ecoliner are ideal for insulating and drylining internal walls. Eco-Versal suits timber frame walls, with both sides faced in aluminium foil for improved efficiency. As the name suggests, Eco Cavity is designed for cavity or masonry walls and fits standard brick and block dimensions.
- Flooring – Works with most flooring types, including timber, solid concrete, and suspended floors. Insulating floors helps prevent heat loss and keeps interiors warmer.
- Lofts – Loft spaces are one of the most common areas for heat loss. Using PIR or PUR insulation can improve energy efficiency and reduce heating costs.
- Eco-Versal versatility – A popular PIR option that works across pitched roofs, walls, loft ceilings, and floors for consistent thermal performance throughout the home.
Frequently Asked Questions
How to guides
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The £2 billion grant aims to encourage homeowners to make their homes more energy efficient, benefitting the environment as well as protecting and creating jobs.
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