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WINTER 2015
seam every 350-400mm. It’s important that they wrap tape
all around the pipe and back over itself because the memory
of the material means it tends to want to roll flat again. The
more tape, the better because once the ceiling is fitted you
can’t see if it’s unravelled or not and by then it’s generally
too late.”
THERMOTEC NUWRAP 5
Thermotec has been manufacturing both thermal and
acoustic products in Australia since 1987 and have garnered
a reputation for supplying a competitive world class range of
products.
One such product is NuWrap 5 which is trusted to exceed
performance expectations, and designed to meet or exceed
the Building Codes of the countries, states, provinces or
industry categories where they are specified and installed.
Thermotec NuWrap 5 acoustic pipe and duct lagging is
classed as a ‘one solution’ product that can be used either
indoors or manufactured for use outdoors. Performance
is the result of using a special density convoluted foam in
conjunction with a barium loaded, high mass, (5kg/m2) limp
polymer material that is faced with a reinforced aluminium
foil that gives the product additional strength as well as
outstanding fire resistance characteristics.
When installing, the following steps should be taken:
∫ Cut insulation to suit either bends or straight lengths.
∫ Ensure that the outer pipe surface is clean and free of
dust.
∫ Wrap insulation in place and ensure no gaps and that butt
joins are well sealed. For straight lengths use a minimum
50mm overlap.
∫ Use 72mm wide foil face self-adhesive tape ensuring that
surface to be taped is clean and dust free.
∫ On straight runs, foil tape should be used as a band,
wrapped around the insulation as well as along
longitudinal joins. Joins should be facing downwards to
avoid unnecessary weight and strain on the tape.
∫ Check and double check there are absolutely no gaps in
the joins.
PYROTEK NC SOUNDLAG4525C
A division of Pyrotek, Pyrotek Noise Control are continually
working on new ways of tackling the problem of noisy
environments. It is their ongoing goal to create advanced
materials and innovative products which anticipate
changing customer needs.
Soundlag 4525C is a pipe wrap comprising of 5kg flexible
acoustic barrier bonded to 25mm thick flexible convoluted
foam. The foam acts to provide acoustic decoupling
between the pipe’s noise energy and the flexible acoustic
barrier external wrap. The external face of the barrier
is bonded to an aluminium foil providing a fire resistant
covering.
ACOUSTIC PLUMBING
Thermotec NuWrap 5 is classed as a ‘one solution’ product
that can be used either inside or out. A reinforced aluminium
foil provides additional strength and fire resistance.
THERMOTEC NUWRAP 5
6KG TESTED AS A FREE
HANGING BARRIER
FREQUENCY (Hz)
SOUND TRANSMISSION LOSS (dB)
45
40
35
30
25
20
15
10
125
100
160 200 250 315 400 500 630 800 1K 1.25K1.6K 2K 2.5K 3.1K 4K 5K
5
0
TEST RESULTS
STC CURVE