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General Purpose Insulation Roll
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Installation
When fitting Non-Itch,
the roof structure must have provisions in place for preventing
condensation.
Adequate permanent ventilation of the roof space should
be provided by continuous openings or frequently spaced
vents of equivalent area positioned along two opposite
sides of the roof at eaves level. For pitched roofs greater
or less then 15 degrees, roofs with spans exceeding 10m,
and monopitched roofs, should be in accordance with clause
9.4 (in particular 9.4.7.1) of BS 5250 : 1989. Further
information and guidance is given in BRE Report No 262
Thermal insulation : avoiding risks. In roof structures
incorporating the insulation at ceiling level, a breathable
membrane can be used to limit excessive condensation.
Application
For safety, work from suitable “crawling boards” spanning four joists. Start from the eaves ensuring
the wall plate is covered and work towards the centre
of the loft, placing Non-Itch between the joists (on
top of any existing insulation in place). Butt joint
where necessary. When space along the joists is
filled, the end of the roll can be turned back to start
an extra layer of insulation or may be cut to size.
Layer insulation to the required thickness ensuring
the ceiling beneath is completely covered except
directly under the water tank. Where the depth of
previously installed insulation has reached the top of
the joists, extra heat saving is gained by cross
layering (at right angles to joists) with Non-Itch.
Insulate and draught seal the loft hatch.
Handling and Storage
Non-Itch General Purpose Insulation Roll 42.5 is easy to
handle with no protective clothing and easy to install,
being lightweight and easily cut to size.
Non-Itch General Purpose Insulation Roll 42.5 is
supplied in polythene packaging, designed for short
term protection only. |
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Quick, clean and easy
to install
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No protective clothing
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Free from Hoating fibres
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Direct equivalent
to glass fibre insulation
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Totally recyclable |
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