External-wall-insulation-catalogue

U-VALUES AND
INSULATION
TYPES
THERMAL PERFORMANCE IS MEASURED IN U-VALUES,
THE RATE OF HEAT LOSS THROUGH A STRUCTURAL
ELEMENT SUCH AS A WALL
Our range of high
performing insulants, which
are available in varying
thicknesses, ensure that
our systems dramatically
improve thermal
performance and achieve
or exceed current Building
Regulation u-values which
are currently 0.30 W/m2K
in England.
All construction materials such as brick,
insulation, plasterboard and render have a
Lambda value - a measure of how they conduct
heat. Used together during the construction
of buildings, various materials will determine
the overall thermal performance of a wall;
this is known as the U-value. The lower the
U-value, the more thermally efficient the wall
construction is.
A U-value calculation will take into consideration
the wall thickness and material and any render
or insulation used. In a typical Victorian property
with 9 inch solid brick walls the U-value is 2.08
W/m 2 K.
Heat loss is vast through an uninsulated solid brick wall.
Heat loss is greatly reduced through a solid brick wall with the
installation of External Wall Insulation.
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