Chase CONCRETE FINISH, Installation Manual

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6.6 Fixing Spacing and Edge Distances
In all cases the maximum vertical fixing spacing must be 300mm along studs at maximum 600mm spacing. Edge
fixings must not be placed less than 50mm or (more than the panel thickness) mm from the edge or end of a panel. At
the starter channel, fixings may be spaced a distance up to the thickness of the panel from the bottom edge.
Note: AS 4055 Table 3.3, N3 Wind Classification includes Ultimate Strength Wind Pressures up to +1.35kPa & -2.03kPa; and,
N4 Wind Classifications include Ultimate Strength Wind Pressures up to +2.01kPa & -3.01kPa.
Fixing Spacing
AS 4055 Wind Classification Panel Thickness (mm) Stud Spacing (mm)
Fixing Spacing (mm), All wall
locations (within 1200mm of corners,
& over 1200mm from corners.)
N1, N2, N3 50 600 (max.) 300 (max.)
N1, N2, N3, N4 75, 100 600 (max.) 300 (max.)
6.7 Installation Steps
Prior to commencing installation, it is recommended that you ensure that the frame that you are installing the
panel onto meets the stud spacing requirements detailed above ie stud spacing to be no more than 600mm.
You should also ensure that the frame is straight/ level (we recommend utilising a straight edge or level to
achieve this). If the frame is not level, appropriate measures such as packing out the frame should be
completed prior to installing the panel.
1. Chase Breathable Builders Paper – To be fixed over
the studs, cut openings around penetrations
(e.g. doors, windows, and other services).
If the builders paper has been applied by another
party (eg. by the builder) prior to application, the
person who installing the panel should make sure
the paper has been correctly installed before starting.
2. Flashing Tape is required to be installed around all
doors, windows & openings and forms part of the
weatherproofing of the system. In all cases the
Flashing Tape must be applied in accordance with the
manufacturers’ instructions and with emphasis on:
a. Ensuring the surfaces being joined are clean
and free from any contamination such as
dust, dirt, oil or silicones;
b. The installation temperature range and
environmental conditions are within
tolerances;
c. Pressure is applied to the surface to ensure
firm contact with the substrate;
d. Tapes are not to be used as mechanical
joining devices, care should be taken to
ensure that the materials joined are not
liable or subject to movement. Flapping of
the two surfaces joined by the tape creates
enormous pressure on the join and can lead
to tape breakdown.
3. Battens - For Cavity System
Battens may be EPS, timber or steel and are to be
installed vertically at every stud. EPS & timber battens
are to be 35mm or wider and between 15-50mm deep.
Steel battens are to be 35mm or wider and between
15-35mm deep with 0.55BMT steel top hats
Note - if installing the foam panels on battens the
bottom edge of Breathable Builders Paper needs to
be sealed with Flashing Tape.