UFH-M Board
Low-profile underfloor heating system| The boards are available in two options, 16/12 and 20/16, each with a pre-formed channel at 150mm centers, to accommodate either 12mm or 16mm pipe diameter configurations and a range of compressive strengths to suit an array of floor build-ups.
Pipes are simply laid into the pre-moulded channels and overlaid with the desired floor finishes. The type and thickness of the proposed floor finish and floor design load categories will dictate the compressive strength (grade) requirements of the UFH-M Boards, see Table 1. Please note: While the polystyrene boards provide some insulation, additional thermal insulation will likely be necessary beneath ground floors to achieve compliance with Part L of the Building Regulations. |
Key Benefits
|
Floor coverings
BEWI UFH-M Boards are suitable to accommodate a wide variety of floor coverings, including carpets, tiles, vinyl, engineered wood and laminate flooring.
Floor coverings should not be installed until 24 hours after the installation of the system and any necessary pressure testing has been successfully completed.
Consideration should be given to the amount of point loading expected on the floor (see grade selection). For wet areas, fully tank the entire surface of the boards to protect against damage.
Grade selection
The grade of UFH-M Boards should be selected in line with the building type and specified floor loadings.
Compressive strengths of the various standard grades available are provided in Table 1 and cover domestic loading requirements as detailed.
For domestic loading criteria exceeding that detailed in Table 1 and or any predicted long-term loads, (for example, staircase newel posts, water tanks or kitchen installations), additional support, direct to the load bearing structural substrate, may be required.
Given the wide range of non-domestic loading categories and floor finishes please contact the BEWI Technical Team for help selecting the appropriate product type for your application.
Dimensions
| Size | 1200 × 600mm (board coverage 0.72m²) Thickness 20mm for pipes with 16mm diameter |
| Thickness | 20mm for pipes with 16mm diameter 16mm for pipes with 12mm diameter |
| Pipe Centres | 150mm |
Type
BEWI UFH-M Boards are supplied as EPS 70, 100, 150, 200, 250, 300 & 400 as defined in BS EN 13163 with flame retardant additive as standard, achieving Reaction to Fire Class E.
Table 1
| Domestic – Examples of floating floor finishes (1) Loadings (UDL 1.5kN/m² Concentrated Load 2kN) (2) |
Minimum Topping Thickness mm (3) |
70 | 100 | 150 | 200 | 250 | 300 | 400 |
| Traditional sand and cement screed | 65 | • | • | • | • | • | • | • |
| Modified sand and cement screed (4) | 60 | – | • | • | • | • | • | • |
| Modified screed / Flowing screed (4) | 35 | – | – | • | • | • | • | • |
| 25mm Tongue and Groove Dry Screed Panels | 25 | – | – | – | • | • | • | • |
| 22mm Tongue and Groove Chipboard + Carpet or Vinyl over | 22 | – | – | – | – | • | • | • |
| 18mm Tongue and Groove Chipboard + Carpet or Vinyl over / Levelling compound + fully adhered floor tiles (5) | 15 | – | – | – | – | – | • | • |
| Levelling compound + fully adhered floor tiles, Tongue and Groove engineered wood and laminate floor finishes (5) | 10 | – | – | – | – | – | – | • |