Carbon Film
Installation Instructions
Page 4
Step 1
Once you are satisfied that the sub-floor is suitable (see pre-
installation notes page 3), lay out the insulation underlay to
cover the entire floor area, except for the 50mm gap. The
foam underlay sheets should be laid with staggered joints
Fig.4.
If laying a double layer (recommended in conservatories &
other areas with a high heat loss) the second layer should
be laid at right angles to the first.
Notes:
The foam underlay should be cut with a Stanley knife or similar.
Step 2
Leave a gap of approximately 50mm at one edge of the room along where the cold cables are to be run, so as to allow
them to sit flush under the floor covering when it is laid. For systems of more than 8 elements a gap wider than 50mm may
be required.
Using a length of 50mm wide double sided tape on the sub floor within the gap that has been made in the underlay, can
be used to hold the cold cables in place.
Step 3
If you wish, you can join the sheets of underlay together to
prevent them from moving apart. This can be done by
taping the edges of adjoining sheets together with a self
adhesive cloth tape (Duct Tape) Fig. 5
Fig. 4
Fig. 5
Insulation Underlay - Installation