PM23 H1 Guide TUMU 210x287mm 4.0 LR - Flipbook - Page 7
CEILING
INSULATION
SUPPLIER SOLUTIONS – COMFORTECH®
Comfortech Building Performance Solutions® has developed a range of insulation
solutions, which can all be found on its H1 Hub at h1done.co.nz
T
o support the industry with meeting the new H1
requirements, Comfortech® has introduced a new
product range, Pink® Superbatts®. Specifically
designed to meet the H1 Building Code changes and
developed in partnership with local industry and the
installer network, the Pink® Superbatts® range is extra
wide to reduce thermal bridging. Tried and tested
here in New Zealand, these batts® ensure a quality
product for our New Zealand environment – the best fit
for your build.
Comfortech® is committed to supporting the industry
by providing the best H1 insulation solutions and
regular up-to-date information on how to navigate
these changes. With that in mind, the Comfortech®
team has created the ‘H1 Hub’, a go-to source for all
H1 information, residential and commercial solutions,
tools, advice, and downloadable resources.
The introduction of the H1 Building Code changes
supports Comfortech® with achieving its goal of
creating a more sustainable and comfortable future for
New Zealanders, enabling all Kiwis to live and work in
warmer, healthier and more energy-efficient buildings.
For more information on the H1 changes, visit the
H1 Hub at H1done.co.nz .
SINGLE-LAYER SYSTEM
The traditional single-layer segment installation methodology will no longer meet
the new H1 requirements.
This is because segment widths designed to fit
between truss chords create a thermal chimney
over the structure, which allows heat loss into the
ceiling space. As R-values increase and calculations
are based on more robust accounts for thermal
bridging, the impact of this heat loss cannot be
adequately offset.
To address concerns about thermal bridging and heat
loss between segments in ceilings, Comfortech® has
developed the new extra-wide Pink® Superbatts®
insulation. At 460mm wide, rather than the traditional
432mm, Pink® Superbatts® ensures a tight fit around
the truss chords, with optional on-site notching to
fully eliminate air gaps and airflow around structural
members.
TWO-LAYER SYSTEM
In developing its two-layer solution, Comfortech® knew it needed a denser first layer
to ensure the expected thermal performance was still delivered under the
compression of the second layer, as two layers of R3.6 would not deliver an R7.2
once compression was factored in.
Further to this, while typical truss bottom chords are
90mm or 140mm in height, Comfortech® identified
that it needed to also accommodate for the fact that
metal ceiling battens are hung below the truss chords
and not fixed directly to them.
Therefore, Comfortech® developed its two-layer
solution, with a first layer that is Pink®Batts® R2.6
with a 110m thickness for 90mm truss chord, and
Pink®Batts® R3.0 with a 160mm thickness for
140mm truss chords. The extra 20mm thickness
ensures the top of the first insulation layer aligns
with the top of the truss chord and, when the
second layer is laid over, that there are no pockets
or paths for heat flow/loss that would reduce the
effective performance.
Pink® Superbatts® is available as an R7.0 for
compliance via the Schedule method and other
R-values for compliance via the Calculation and
Modelling methods; these will include Pink®
SuperBatts® insulation R4.5, R5.0 and R6.0.
Comfortech's Double-Layer Solution:
The first layer is high density and the same height as the truss
chords to prevent heat loss
Comfortech's Single-Layer Solution:
Insulation is notched to eliminate the thermal bridge
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TUMU H1 GUIDE
*These solutions are the property of Comfortech, not Tumu Building Supplies
CONTINUED OVERLEAF
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