Why do I need underlay?
The primary function of underlay is to take up any unevenness
in the floor. Also underlay must be present for any warranty
to be valid in the event of a problem.
Can I use the carpet underlay already laid?
We do not advise the use of a carpet underlay, as this
is not suitable for wooden flooring. The correct underlay
must be used to comply with warranties etc.
Which way up do I lay underlay?
If your underlay has a built in moisture barrier this
needs to be touching the sub floor, with the foam/spongy
part of underlay facing upwards.
What's DPM?
DPM stands for Damp Proof Membrane. This is also known
as a moisture barrier and can be supplied on its own
or built in to an underlay. It is required to be laid
if a concrete sub floor is present. Many manufacturers
require this to be used for the warranty to stand.
Why do I need DPM?
DPM is required to be laid if a concrete sub floor is
present. Many manufacturers require this to be used
for the warranty to stand.

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