Floor Constructions | Timber Suspended

This application is suited for both new and existing buildings. It is essential that insulation is installed between joists as close to the underside of the plates as possible. Typically a minimum 100mm of mineral wool insulation is used, however where relevant, the insulation used must comply with current Part L of the Building Regulations.  All other services such as cables and plumbing pipes should be laid before the underfloor heating.

UFH pipework can be laid between timber joists with the help of heat emission plates. The plates are designed for suspension over joists at 400mm centres and are manufactured with grooves set at 200mm centres. If joists centres are different to the above a few methods of cross battening is available to give support to the plates and enable this system still to be installed. Our technical engineers are on hand to discuss these options if you need further details.

On new floors, insulation is laid between the joists. Heat emission plates are used to spread the heat evenly, the plates being secured directly onto the battens or joists. The groove in the plate is designed to grip the pipe securely. Once the loops are laid, connected up and pressure tested, the floor deck can be fixed to the joists. Joists are usually spaced at 400mm centres, double heat emission plates can be used without raising the floor level. For battened floors, the battens can be fixed at either 400mm or 411mm to suit the two sizes of double heat emission plates. The 411mm plates are specifically designed for use with Junkers sprung floors.
The maximum heat output from timber flooring is 70W/m2 with a room temperature of 20°C and a floor temperature of 27°C.
16mm pipe installed using heat Emission plates

16mm pipe installed using heat Emission plates
16mm pipe installed using battened timber

16mm pipe installed using battened timber
16mm pipe installed above decking with screed

16mm pipe installed above decking with screed
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