Unilin Thin-R XT/PR-UF



High performance rigid Polyisocyanurate (PIR) general application insulation board

Suitable for use in roof and ground floor applications, including underfloor heating applications.

Helps meet the requirements of Approved Document L and Section 6.

Includes low emissivity composite foil facings giving improved thermal insulation performance within cavity air spaces.

Can be used to provide reliable long-term energy savings for buildings.

BBA certified.

Thicknesses and Availability:

Good availability for delivery to London; short lead-times may apply if we need to get stock in before delivering to site.

This XT/PR-UF Range includes the following available product thicknesses: 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 75mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm and 150mm.


Product options

Quantity Product ex-VAT inc-VAT  
£11.89 £14.27
£12.42 £14.90
£12.70 £15.24
£14.38 £17.26
£17.33 £20.80
£19.72 £23.66
£22.24 £26.69
£25.63 £30.76
£27.47 £32.96
£28.34 £34.01
£31.70 £38.04
£34.09 £40.91
£37.30 £44.76
£41.16 £49.39
£49.40 £59.28
£46.85 £56.22
£50.05 £60.06
£6.67 £8.00

Availability Indicators

Unilin Thin-R XT/PR-UF is available for delivery within the London, M25 area only and is subject to the Unilin Insulation minimum order levels and delivery charge thresholds.

Reasonable stock levels are held of the popular thicknesses, where products need to be brought in from Unilin, please allow approx. 1 week for delivery.

  • Generally 1 to 3 working days for delivery
  • Generally 1 to 5 working days for delivery
  • Generally 5 to 10 working days for delivery
  • Special request or made to order item, allow extended lead times. Minimum order levels may apply.
  • Please call to check availability and approximate lead times

Delivery charges will be calculated at check-out. Please visit our Ordering From Us page for further details on minimum order levels and delivery charges. If you have any queries, please do not hesitate to contact me via our Contact Form or on 01903 899 898.

Product Application

Roof and/or floor application insulating board

Unilins high performance polyisocyanurate (PIR) foam board, Thin-R XT/PR-UF, is suitable for use in pitched roof and ground floor applications, including beam and block, solid and suspended ground floor.

Product Make-up

Core: Unilin XT/PR-UF is manufactured from rigid polyisocyanurate modified polyurethane foam boards.

Facings: Faced on both sides with a low emissivity composite aluminium foil, autohesively bonded to the insulation core during manufacture.

Product Properties

Thickness 15mm to 150mm
Length 2.4m
Width 1.2m
Edge Square

Product Performance

Thermal Conductivity 0.022 W/mK  
Compressive Strength 150 kPa at 10% compression BS EN 826
Vapour Resistance > 300 MNs/gm  

Product Variants

Product Thickness Thermal Resistance kg/m²
Unilin XT/PR-UF 15 mm 0.65 m²K/W 0.78 kg/m²
Unilin XT/PR-UF 20 mm 0.90 m²K/W 0.85 kg/m²
Unilin XT/PR-UF 25 mm 1.10 m²K/W 0.98 kg/m²
Unilin XT/PR-UF 30 mm 1.35 m²K/W 1.23 kg/m²
Unilin XT/PR-UF 40 mm 1.80 m²K/W 1.42 kg/m²
Unilin XT/PR-UF 50 mm 2.25 m²K/W 1.71 kg/m²
Unilin XT/PR-UF 60 mm 2.70 m²K/W 2.02 kg/m²
Unilin XT/PR-UF 70 mm 3.15 m²K/W 2.42 kg/m²
Unilin XT/PR-UF 75 mm 3.40 m²K/W 2.53 kg/m²
Unilin XT/PR-UF 80 mm 3.60 m²K/W 2.60 kg/m²
Unilin XT/PR-UF 90 mm 4.05 m²K/W 2.99 kg/m²
Unilin XT/PR-UF 100 mm 4.50 m²K/W 3.26 kg/m²
Unilin XT/PR-UF 110 mm 5.00 m²K/W 3.56 kg/m²
Unilin XT/PR-UF 120 mm 5.45 m²K/W 3.87 kg/m²
Unilin XT/PR-UF 130 mm 5.90 m²K/W 4.32 kg/m²
Unilin XT/PR-UF 140 mm 6.35 m²K/W 4.61 kg/m²
Unilin XT/PR-UF 150 mm 6.80 m²K/W 4.76 kg/m²

While we have provided Thermal Resistance values for all thicknesses on the Unilin XT/PR-UF datasheet, some thicknesses may not be readily available.