Polyfoam UFH Board
Description
Polyfoam Underfloor Heating Boards are rigid, lightweight extruded polystyrene (XPS)
insulations. Available as routed or flat boards.
Product Benefits
- - Manufactured to close thickness tolerance avoiding any unnecessary steps in installation
- - robust and can tolerate foot traffic from following trades
- - Lightweight, easy to handle
Product Application

Ground Floor
(Insulation under slab)
Learn more

Ground Floor
(Insulation above slab)
Learn more

External wall
(Below DPC)
Learn more
Technical Specification
The water vapour resistivity of Polyfoam Underfloor Heating Boards is 705MNs/g.m when tested in accordance with BS EN 12086.
Polyfoam Underfloor Heating Boards have a moisture absorption of 0.7% by volume when tested in accordance with EN 12087.
Polyfoam Underfloor Heating Boards have a reaction to fire classification of F to BS EN 13501-1.
The BRE have approved and issued Environmental Product Declarations (EPDs) for the Polyfoam range of products in accordance with EN 15804:2012+A1:2013. Polyfoam Underfloor Heating Board represents no known threat to the environment and has Zero Ozone Depletion Potential and a low Global Warming Potential. Polyfoam XPS is non bio-degradable and 100% recyclable.
The continuous service temperature limit of Polyfoam XPS is up to + 70°C.
Polyfoam Underfloor Heating Boards are highly resistant to compression and can withstand both occasional and long term static loads. Load bearing construction elements should be designed to adequately support the combination of imposed and dead loads without creating excessive deflection.
Polyfoam Underfloor Heating Boards are lightweight and easy to handle and install. Polyfoam Underfloor Heating Boards are supplied in four sided packaging designed to be easily recognised and are labelled with identifying product and manufacturing data. Ensure the boards are not stored close to open flames or other ignition sources and avoid volatile organic compounds and chemicals such as solvents. Polyfoam Underfloor Heating Boards should not be left exposed to prolonged sunlight as this will result in surface degradation. When outside storage for extended periods is required cover the products with opaque/light coloured sheeting.
| Length (mm) | Width (mm) |
|---|---|
| 1200 | 600 |
| Thickness (mm) | Thermal conductivity (W/mK) |
Thermal resistance (m2K/W) |
Compressive strength (kPa) |
|---|---|---|---|
| 20 | 0.031 | 0.60 | 300 |
| 25 | 0.031 | 0.80 | 300 |
Downloads
Proudly made in Britain with green focused credentials
Polyfoam XPS Ltd is a leading manufacturer of closed cell, extruded polystyrene insulation. The Polyfoam range is lightweight, strong, moisture resistant and easy to cut and shape, providing thermal performance and strength for the lifetime of the building.
Manufactured in the UK using a blowing agent with low global warming potential (GWP) and zero ozone depletion potential (ODP), Polyfoam XPS products are free from CFCs and HCFCs.
They have Environmental Product Declarations (EPDs) and raw material procurement is certified to BES 6001 (Responsible Sourcing of Construction Products).


