Polyurethane
cavity insulation and wall stabilisation injection foam is now the number
one choice for cavity insulation, more so due to rising
energy costs and a general global energy saving initiative.
There are many reasons for this, which mainly lie in the
extensive benefits offered by the lightweight and unique
nature of the cavity insulation foam substance, and its
ability to bond to almost any material.
Random stone walls usually present a problem when considering cavity wall insulation. Established products such as Rockwool and polystrene beads prove difficult to use due to the uneven inner surface of the stone outer leaf. This can result in 'dead spots', uninsulated areas which could vary in size. This obstacle is instantly overcome by using cavity foam insulation, besides acting as a wall tie, being 99% waterproof and extremely rigid, it is also the best insulator per thickness on the market today.
Cavity
insulation foam is injected though very small holes in
a liquid form, and then,within minutes, expands to the
required thickness, setting rapidly into a rigid foam
form. This creates a continuous membrane, filling in all
gaps, also eliminating draughts and further possibilities
of conducting cold air.
The
effectiveness of cavity Insulation is judged and measured
in terms of 'u' values. Polyurethane cavity injection
foam insulation has extremely good 'u ' values or thermal
efficiency. For example, when comparing PU foam to 'Rockwool',
three times the thickness of 'Rockwool' would be needed,
compared to foam, to achieve an equivalent 'u' value.
If a cavity of say, only 2 inches is present, but a u
value that only cavity insulation injection foam can achieve
is required, the foam is the obvious choice.
> Cavity foam insulation datasheet (Technitherm-BBA approved)
> Cavity Insulation FAQ sheet
> See Technitherm being applied (link to video)
Other
benefits associated with cavity insulation injection foam
are as follows:
-
Reduces
temperature extremes, i.e. it helps to prevent environments
being too hot or too cold.
-
Reduces
noise and vibrations, such as those given off by stereos
and televisions close to the parting wall of a semi
detached house for example.
-
Helps
to stabilise the two parting walls in a semi detached
house for example.
-
Prevents
condensation.
-
Is
very long lasting.
-
'Works'
immediately.
-
Performs
in damp atmospheres as it has a closed cell structure,
which means it is almost waterproof.
-
Does
not get damp rotten and smelly if it is exposed to
water.
-
Is
compatible with electric wiring, there is no adverse
reaction, unlike Polystyrene.
The
combined effect of all these factors and benefits is making
cavity insulation an increasingly popular choice generally,
especially in relation to the current concerns over climate
change, energy saving strategies, frequent fuel crises
and price rises. It was recognised that thermal insulation
can play a key role in the cost effective reduction of
carbon dioxide emissions in Europe and save up to 350
MILLION TONNES per annum by 2010.
Watch
the video below to see how the foam expands slowly to
fill a cavity:
The
application of cavity insulation PU foam isn't recommended
to the amateur. It is only really successfully applied
and gauged by skilled engineers.
By
choosing Websters Insulation Ltd for your cavity insulation,
you will gain the added advantages associated with a long
established firm, who pride themselves in being a Yorkshire
based organization, offering quality of service and workmanship,
at very competitive prices.
Websters
Insulation has been going for over twenty five years and
have been offering cavity insulation for over ten years,
specialising in the application of cavity insulation for
all kinds of structures and buildings, i.e., industrial,
commercial, domestic, agricultural as well as marine.
Cavity
foam insulation is a suitable insulating material for more
or less any requirement. The Technitherm system is the only
method approved by Websters Insulation Ltd, because the
continuous membrane adheres to almost all surfaces, and
contains the most efficient insulating properties.
