If
you like the idea of doing your bit for the environment,
whilst enjoying the benefits, then pick up the
phone or fill out the form on the contact page.
All our details
along with a web form can be found
on the contact page click
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Tel:
0114 287 0723
Floor Construction Methods
Underfloor
Heating - Timber Suspended
This
application is suited for underfloor
heating to both new and existing buildings,
ground or upper floors. There are slight
variations to the methods used. We
have listed three, with the aid of
diagrams below to help you understand
the different methods
Aluminium
heat emission plates below floor in-between
the joists
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.
Underfloor
heating pipe work 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 joist centres are different
to the above there are a few methods of cross
battening available to give support to the plates
and enable this system still to be installed.
We can discuss these variations in preparation
pre-install of the underfloor system.
Batons
are screwed to the floor surface below or if
there is no floor surface, in a new build for
example; directly to the joists to create a raised
floor.
On new floors where the joists are exposed, insulation can be laid between the
joists. Heat emission plates are used to spread the heat evenly, the plates are
secured directly onto the battens that are screwed to the floor.
The groove in the plate is designed to grip the underfloor heating pipe securely.
Once
the loops are laid, connected up and pressure
tested, the floor deck can be fixed to the batons.
The battens can be fixed at either 400mm or 411mm
to suit the two sizes of double heat emission
plates available.
Joists are usually spaced at 400mm centres, double heat emission plates can be
used without raising the floor level (as shown in the diagram above.) For battened
floors, use of the 411mm plates are specifically designed for use with Junkers
sprung floors, meaning the heating pipe is directly below the new floor material,
leaving only a small mass for the heat to transfer through.
The maximum heat output from timber flooring is 70W/m2 with a room temperature
of 20°C and a floor temperature of 27°C.
Pipes
clipped above floor in-between batons concealed
in screed
The third method does not use the heat emission
plate. Underfloor heating pipes are clipped to
the floor surface below and screed is used to
infill between the battens.
Again the new floor
covering can be laid directly on top, leaving
only a small mass for the heat to transfer through.
Aluminium
heat emission plates below floor in-between
the joists
