100mm Unilin (Xtratherm) Safe-R Phenolic Foam Underfloor Board SR/UF - per board
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2.88 m²
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Safe-R Under Floor SR/UF is a rigid phenolic insulation with low emissivity aluminium facings both sides and has a thermal conductivity as low as 0.020 W/mK, delivering excellent U-values in floors.

The floor in any building is an area of considerable downward heat loss when not properly insulated. SR/UF will significantly improve the U-value of new and existing floors. SR/UF is lightweight, easy to install and combines high compressive strength with low thermal conductivity, providing a high performance solution for floor insulation.

Key points :

High Compressive Strength

Suitable for Underfloor Heating

Perimeter Strips for Robust Detailing

Reduced Insulation Thickness

Lower Lambda Values for Improved U-Values

Specification :

Thickness: 50mm
Width: 1200mm
Length: 2400mm
Board coverage:  2.88 m²
Board Profile: Square Edge
Thermal Conductivity:  0.023 - 0.023 W/mK
R-Value:  5.00 m²K/W
Fire Rating: Class 'O' 
Reaction to Fire: Euroclass B-s1, d0
Compressive Strength: >120 kPa



ISO9001 - Quality Management Systems
ISO14001 - Environmental Management
BBA - 10/4803
A+ rating on BRE Green Guide