Jan 2014
Batten fixing
points
800m
m M
ax. N
og spacing
600mm stud crs
50m
m
BGC Stratum™ Batten Fixing setout
Note:
No horizontal Structural timber
Cavity battens required at nogs
300m
m
All intermediate
battens to be
50x20mm structural
timber. Refer to fixing
specification
Polypropylene tape
at 300mm crs fixed
horizontally and
drawn taut
BGC Vermin proof
vent strip or similar
Horizontal Structural Timber
Cavity Batten 50x20mm H3.1
Structural SG8 Timber Cavity Batten (50x20mm for
butt joint, 70x20mm for express joint) H3.1, fixed
over Durabarrier™ or approved breather type
building underlay & framing with 65x2.8mm
RounDrive ring shank galv nails or 60x2.8mm Galv
Jolt Head nails at 300mm centres staggered 12mm
either side of centre line
GCB Fibre Cement
1:25 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Batten Fixing Setout
BGC Stratum™ and Stratum™ Duo
ST-01
800m
m800m
m
600mm 600mm 600mm
Plank joint
Plank
overhang
50m
m
Jan 2014
800m
m M
ax. N
og spacing
75m
m
600mm stud crs
50m
m
Plank
overhang
BGC Vermin proof
vent strip or similar.
Ensure tight fit
between battens
BGC Stratum™ Fixing setout
Typical
Note:
Polypropylene tape
omitted for clarity
3mm max gap butt joint OR
16mm max gap express joint
12mm12mm
All intermediate
battens to be
50x20mm structural
timber. Refer to fixing
specification
Structural SG8 Timber Cavity Batten (50x20mm for
butt joint, 70x20mm for express joint) H3.1, fixed
over Durabarrier™ or approved breather type
building underlay & framing with 65x2.8mm
RounDrive ring shank galv nails or 60x2.8mm Galv
Jolt Head nails at 300mm centres staggered 12mm
either side of centre line
Stratum Fixing options:
30 x 1.6mm C Series Stainless steel brad
GCB Fibre Cement
1:25 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Stratum™ Fixing Setout
BGC Stratum™ and Stratum™ Duo
ST-02
800m
m800m
m
600mm 600mm 600mm
30 x 1.6mm C Series
Stainless Steel Brad
concealed fix to each
stud
30 x 1.6mm C Series
Stainless Steel Brad
face fixed fix to each
stud 50mm from base
of board.
50m
m
50m
m
ST-03
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Durabarrier™ or
approved breather
type building
underlay
65x2.8mm Roundrive ring
shank nail at 300mm centres
staggered 12mm ether side of
centre line
stud
H3.1 treated SG8 timber cavity batten
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing
30x1.6mm C Series Stainless
Steel Brad
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
DETAIL
BGC Stratum™ and Stratum™ DuoPROFILE
Intermediate Stud Fixing Cavity
Construction
Stratum™ adhered to
batten with cont.
6mm bead of Bostik
seal 'N' Flex FC
Jan 2014
Jan 2014
stud
65x2.8mm Roundrive ring shank
galv nail at 300mm centres.
Fixings to be staggered 12mm
either side of centre line
50x20mm vertical timber cavity
batten. H3.1 treated SG8 timber
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
30x1.6mm C Series Stainless
Steel Brad
12mm
12mm
3mm max gap.
Stratum™ adhered
to batten with cont.
6mm bead of Bostik
Seal 'N' Flex FC to each
plank
Durabarrier™ or
approved breather
type building underlay
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Vertical Joint Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-04
Bostik Seal 'N' Flex
FC
Jan 2014
stud
65x2.8mm Roundrive ring shank
galv nail at 300mm centres.
Fixings to be staggered 12mm
either side of centre line
70x20mm vertical timber cavity
batten. H3.1 treated SG8 timber
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
12mm
12mm
Stratum™ adhered
to batten with cont.
6mm bead of Bostik
Seal 'N' Flex FC to each
plank
Durabarrier™ or
approved breather
type building underlay
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
16mm max gap.
30x1.6mm C Series Stainless
Steel Brad
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Alternative Express Vertical Joint Cavity
Construction
BGC Stratum™ and Stratum™ Duo
ST-05
2-3mm of Bostik
Safe Seal.
Jan 2014
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Timber framing
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing
65x2.8mm Roundrive ring shank nail at
300mm centres staggered 12mm either
side of centre line
H3.1 treated SG8 timber cavity batten
50
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Durabarrier™ or approved
breather type building underlay
30x1.6mm C Series Stainless
Steel Brad
~ 20° to 45° cut to batten ends to
ensure that moisture runs to
exterior.
~ Prime the cut ends with dulux
Acraprime 501 /1 acrylic sealer or
Resene Quick Dry.
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Joining of Structural Cavity Batten
BGC Stratum™ and Stratum™ Duo
ST-06
50
15
50
Jan 2014
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
Timber framing
65x2.8mm Roundrive ring
shank nail.
H3.1 treated SG8 timber cavity batten
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Horizontal Joint
BGC Stratum™ and Stratum™ Duo
ST-07
Durabarrier™ or approved
breather type building underlay
30x1.6mm C Series Stainless
Steel Brad
Express joints only - vertical 6mm
bead of Bostik Seal 'N' Flex FC in
laps at board ends
15m
m
50m
m
Jan 2014
H3.1 treated timber SG8 cavity batten
35
Flexible flashing tape or building underlay
lapped over flashing upstand.
Continuous Vent strip or similar set to
give 15mm min drip edge to cladding.
35
min cover
min cover
Aluminium inter-storey "Z"
flashing with 15° slope.
65x2.8mm Roundrive ring
shank galv nail at 300mm
centres
Durabarrier™ or approved
breather type building underlay.
Mid floor structure
Mid floor flooring - finish
10mm back from external
wall framing.
Note: Drained joints must be used to limit
cavities to maximum 2 stories or 7m in height
in accordance with NZBC acceptable solution
E2/AS1 Paragraph 9.1.9.4
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
Stratum™ adhered to batten with
cont. 6mm bead of Bostik Seal 'N'
Flex FC (not shown for clarity).
BGC Stratum™ with all cut sheet
edges sealed before fixing.
5
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Interstorey Drainage Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-08
30x1.6mm C Series Stainless
Steel Brad
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Jan 2014
100m
m m
in to perm
anent
paving or 175m
m m
in to
unprotected ground
Apply cont. 6mm bead of Bostik
Seal 'N' Flex FC adhesive sealant
(not shown for clarity).
Timber Bottom plate
on D.P.C.
H3.1 treated SG8
timber cavity batten
BGC Vermin proof
vent strip or similar.
Concrete Slab or
block work
Finished ground
level.
15
50m
in
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Durabarrier™ or approved
breather type building
underlay
BGC Stratum™ with all cut
edges sealed before fixing.
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
30x1.6mm C Series Stainless
Steel Brad
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Foundation Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-09
Jan 2014
100m
m m
in
Timber Bottom plate
on D.P.C. (concrete
floor only)
Enclosed deck
structure
BGC Vermin proof
vent strip or similar.
mem
brane upstand
Floor structure
150 m
m
Waterproof decking
membrane to carry up
behind building underlay
past wall framing bottom
plate.
H3.1 treated SG8
timber cavity batten
Corner
fillet
Durabarrier™ or approved
breather type building
underlay
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
BGC Stratum™ with all cut sheet
edges sealed before fixing.
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Enclosed Deck Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-10
30x1.6mm C Series Stainless
Steel Brad
50m
m m
in
50m
m
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
15
Jan 2014
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Internal Corner Aluminium Trim
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-11
H3.1 treated SG8 timber cavity
65x2.8mm Roundrive ring shank
galv nail at 300mm centres
staggered 12mm either side of
centre line
Timber framing as indicated
BGC Stratum™ with all cut
edges sealed before fixing
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
BGC Internal Aluminium
Corner flashing
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
Durabarrier™ or approved
breather type building underlay
continuous around corner
10mm min
30x1.6mm C Series Stainless
Steel Brad
batten
Jan 2014
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Internal Corner Mitre
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-12
H3.1 treated SG8 timber cavity
65x2.8mm Roundrive ring
shank galv nail.
Timber framing as indicated
BGC Stratum™ with all cut
edges sealed before fixing
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
Durabarrier™ or approved
breather type building underlay
continuous around corner
10mm min
Note:
Join mitre cut boards with
Bostik Seal n Flex FC.
Push hard together and cut
off excess once cured
30x1.6mm C Series Stainless
Steel Brad
Join mitre cut boards with Bostik
Seal 'N' Flex FC. Cut off excess
once sealant has cured
90x90 0.7 galv or PVC flashing
(100mm wide each side)
batten
Jan 2014
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
Durabarrier™ or
approved breather type
building underlay
continuous around
corner
Timber framing.
Stratum™ adhered to
flashing with cont.
6mm bead of Bostik
Seal 'N' Flex FC
65x2.8mm Roundrive ring
shank galv nail.
H3.1 treated SG8 timber cavity batten
BGC Stratum™ with all cut
edges sealed before fixing
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
BGC External Aluminium
Corner flashing
10m
m m
in
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
External Corner Aluminium Trim
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-13
30x1.6mm C Series
Stainless Steel Brad
Jan 2014
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
External Corner Mitre
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-14
Durabarrier™ or
approved breather
type building underlay
continuous around
corner
Timber framing.
65x2.8mm Roundrive ring
shank galv nail.
H3.1 treated SG8 timber cavity batten
BGC Stratum™ with all cut
edges sealed before fixing
10m
m m
in
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
90x90 0.7 Galv or PVC flashing
(100mm wide each side)
Stratum™ adhered to
flashing with cont.
6mm bead of Bostik
Seal 'N' Flex FC
Join mitre cut boards with Bostik
Seal 'N' Flex FC. Cut off excess
once sealant has cured
Note:
Join mitre cut boards with
Bostik Seal n Flex FC.
Push hard together and cut
off excess once cured
30x1.6mm C Series
Stainless Steel Brad
30x1.6mm C Series
Stainless Steel Brad
Jan 2014
H3.1 treated timber
cavity batten.
35mm min flashing
cover.
Air seal over
backing rod.
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing.
Apply cont. 6mm bead of Bostik
Seal 'N' Flex FC adhesive sealant
(not shown for clarity).
BGC Vermin proof
vent strip or similar.
Additional layer of flexible
flashing tape or building underlay
lapped over head flashing.
PC Aluminium window
joinery.
PC Aluminium head flashing
with 15° fall with stop ends.
Temporary timber
packer removed
after fixing.
Timber framing.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
35m
m m
in
7.5m
m m
in
10m
m m
in
15m
m m
in
5m
m gap
Note where Durabarrier™ is used
flashing tape must be applied to the
entire opening
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Head Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-15
Durabarrier™ or approved breather
type building underlay flexible
flashing tape to opening corners.
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
For wind exposures Very High and
above, sealant to be installed
between underside of head flashing
and top edge of window head flange
Jan 2014
20mm Min overhang of
head flashing.
Line of head flashing over.
H3.1 timber packer.
Air seal over backing rod.
7.5mm Min.
Aluminium window joinery.
H3.1 treated timber cavity batten
Cover
BGC Stratum™
with all cut sheet
edges sealed
before fixing.
Durabarrier™ or
approved breather
type building underlay
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Stratum™ adhered to batten with
cont. 6mm bead of Bostik Seal 'N'
Flex FC (not shown for clarity).
10mm Min cover to Stratum™ by
aluminium window joinery.
BGC J flashing
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Jamb Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-16
Timber framing.
Foam seal tightly
finished against J
flashing
Durabarrier™ or building underlay and
flexible flashing tape. Flexible flashing
tape to be continuous along sill, 100mm
min. up each jamb and 50mm onto face
of building underlay.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
10mm min20mm
Jan 2014
Aluminium window joinery.
H3.1 timber packer.
Air seal over
backing rod.
7.5mm Min.
Durabarrier™ or building underlay and flexible
flashing tape. Flexible flashing tape to be
continuous along sill, 100mm min. up each jamb
and 50mm onto face of building underlay.
H3.1 treated SG8 timber cavity batten
Sill support bar.
BGC Stratum™ with all cut sheet
edges sealed before fixing.
Durabarrier™ or approved breather
type building underlay.
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
8mm Min cover to Stratum™ by
aluminium window joinery.
Stratum™ adhered to batten with cont. 6mm
bead of Bostik Seal 'N' Flex FC (not shown for
clarity).
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Sill Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-17
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Compressible foam seal tightly finished against
cladding or Bostik Seal 'N' Flex sealant.
Jan 2014
Flashing tape over wall
underlay fitted around
corner as shown
H3.1 treated SG8 timber
cavity batten.
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing.
Flashing tape over
flashing (alternatively
use extra layer of wall
underlay)
Timber lintel
BGC Vermin proof
vent strip or similar.
Head flashing with 15° min
slope 5mm min gap below
Stratum™
Cut head flashing to
continue past window
opening
Timber framing.
H3.1 treated
SG8 timber cavity
batten.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Note where Durabarrier™ is used
flashing tape must be applied to the
entire opening
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Head/Jamb Junction Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-18
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Durabarrier™ or approved
breather type building underlay
flexible flashing tape to corners.
Fold ends of head flashing
to form stop ends
Jan 2014
Flashing tape over wall
underlay full width of
opening
H3.1 treated SG8 timber
cavity batten.
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing.
Durabarrier™ or approved
breather type building
underlay
H3.1 treated SG8
timber cavity batten.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
50m
m m
in lap
5
0
m
m
m
i
n
l
a
p
Note where Durabarrier™ is used
flashing tape must be applied to the
entire opening
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Sill/Jamb Junction Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-19
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Window support bar
100m
m m
in lap
Jan 2014
H3.1 treated SG8
timber cavity batten
Polythene bond breaker
tape.
Nog - offset to
block airflow into
roof space.
Timber framing.
H3.1 treated timber
packer -continuous.
Durasheet™ soffit lining
on H1.2 framing.
Durabarrier™ or approved
breather type building
underlay.
BGC Stratum™
with all cut sheet edges
sealed before fixing.
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Soffit Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-20
12 m
m
8m
m
Bostik Safe Seal or
similar BRANZ appraised
sealant over bond
breaker
30x1.6mm C Series
Stainless Steel Brad
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
H3.1 treated SG8
timber cavity batten
Nog - offset to
block airflow into
roof space.
Timber framing.
H3.1 treated timber
packer -continuous.
Durasheet™ soffit lining
on H1.2 framing.
Durabarrier™ or approved
breather type building
underlay.
BGC Stratum™
with all cut sheet edges
sealed before fixing.
12 m
m
H3.2 timber scotia
30x1.6mm C Series
Stainless Steel Brad
Sealant option
Scotia option
Jan 2014
50mm
H3.2 timber fascia of width to suit
spouting brackets and falls by others
Spouting
Eaves flashing by roofer as required in
accordance with NZBC Acceptable Solution
E2/AS1 Fig 45
Min overhang of roofing beyond fascia
Roofing underlay draining into spouting
Solid blocking
Internal linings
Ensure that
Stratum™ projects
above top of fascia
Ensure that Stratum™
projects above top of
fascia
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Eaves With No Soffit Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-21
BGC Stratum™ with all cut
edges sealed before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
15m
m
Durabarrier™ or approved
breather type wall underlay
Jan 2014
35mm Min upstand
to head flashing
Colorsteel head
flashing with 15° fall
& 20mm stop ends
20mm vertical timber cavity
batten. H3.1 treated SG8 timber
Wall underlay dressed into
opening with flexible flashing
tape to corners
Flashing tape lapped over head
flashing
Timber framing
BGC Continuous vent strip
Meter box by others
15mm Min overhang
5mm Min gap
10mm Min flashing cover
35
Air seal over PEF rod
H3.1 timber packer
7.5mm Min.
10
5
15
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Meter Box Head Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-22
BGC Stratum™ with all cut
edges sealed before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Jamb sealant to extend
to top of continuous
meter box angle
Metal angle. Angle to
be continuous around
meter box. Screw fix
and seal.
Jan 2014
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Meter Box Jamb Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-23
10 min cover
Timber framing
Wall underlay dressed
into opening with flexible
flashing tape to corners
20mm vertical timber cavity
batten. H3.1 treated SG8
timber
Air seal over PEF rod
H3.1 timber packer
7.5mm Min.
Line of head flashing over
Meter box by others
Metal angle. Angle to
be continuous around
meter box. Screw fix
and seal.
Continuous sealant over bond
breaker to extend up to top of angle
BGC Stratum™ with all cut
edges sealed before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Optional 40 x 18mm
H3.2 precut timber
scriber
20 mm
Head flashing to extend 20mm
past meter box angle
Jan 2014
7.5mm Min.
10 M
in.
Air seal over PEF rod
H3.1 Timber packer
Meter box by others
Aluminium angle. Angle to be
continuous around meter box.
Screw fix and seal.
Continuous silicone sealant
over bond breaker
10mm Min cover of
weatherboards to metal angle
fixing
Continue wall underlay
around framing
Wall underlay and flexible
flashing tape
20mm vertical timber cavity
batten. H3.1 treated SG8 timber
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Meter Box Sill Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-24
BGC Stratum™ with all cut
edges sealed before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Durabarrier™ or approved
breather type building underlay.
15m
m
Jan 2014
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Timber framing
Durabarrier™ or
approved breather
type building underlay.
H3.1 treated SG8
timber cavity batten
Saddle flashing
behind cladding
Corner flashing
behind saddle flashing
and cladding
Two lines of sealant to
capping and flashing
BGC Stratum™ with
all cut edges sealed
with BGC edge sealer
or similar before fixing.
BGC Stratum™ with
all cut edges sealed
with BGC edge sealer
or similar before fixing.
Lower edge of cladding
Rivet through sealant
Capping flashing
Timber framing
Durabarrier™ or
approved breather
type building underlay.
Battens behind
saddle flashing
and corner flashing
Flashing tape to separate
metal capping and
treated timber packer
1
0
0
m
m
m
i
n
50mm min
5° min
slope
5
0
m
m
m
i
n
Two lines of
sealant to
capping and
flashing
SADDLE FLASHING
Flexible flashing tape
dressed min. 50mm down
face of battens
Flexible flashing tape
dressed up and securely
adhered to building
underlay at rear of cavity
Timber framing
Cavity battens positioned
to form clear channel
between sloped timber
capping and batten
Sloped packer to
extend across cavity
at wall junction
Flashing tape continuous
around corner over building
underlay (100mm wide
each side)
5° min
slope
FLEXIBLE FLASHING INSTALLATION
H3.1 treated timber
cavity batten set 40mm
back for corner
Durabarrier™ or approved
breather type building underlay.
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Enclosed Balustrade-Wall Junction 3D
Detail Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-25
Jan 2014
Metal flashing with 5° slope on
flashing tape or roof underlay
to separate metal capping and
treated timber packer. Fix
through sides only.
Metal flashing to have birds
beak fold if used as inside
face for enclosed desks
Durabarrier™ or approved
breather type building underlay.
H3.1 timber framing.
BGC Stratum™ with all cut
edges sealed before fixing.
Flashing tape continuous around
top of framing over building underlay
Sloping H3.1 treated
timber packer to form min
5° slope.
BGC Stratum™ with all cut
edges sealed before fixing.
H3.1 treated SG8 timber
cavity batten
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Z
Z
Note:
Z = Refer to NZBC E2 / AS1 Table 7 for flashing cover requirements
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Enclosed Balustrade/Parapet Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-26
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
40 x 2.8mm Fibre Cement Nail
15m
m
Jan 2014
Durabarrier™ or approved
breather type building underlay
BGC Stratum™ with all cut
edges sealed before fixing
90x90 0.7mm galv flashing
Stratum™ adhered to flashing
with cont. 6mm bead of Bostik
Seal 'N' Flex FC
Flashing tape continuous
around corner over
building underlay (100mm
wide each side)
65x2.8mm Roundrive ring
shank galv nail.
Timber framing as indicated
H3.1 treated SG8 timber cavity batten
position 40mm from corner
Line of sloping H3.1 treated
packer above shown dashed
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
40mm min
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Enclosed Balustrade-Wall Junction Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-27
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
30x1.6mm C Series Stainless Steel Brad
40 mm min 40 mm min
150mm min to face of window
or door jamb stud
Jan 2014
f
a
l
l
External gutter to
be kept 10mm
clear of cladding
Parallel apron flashing
formed with stop end to
deflect water into gutter
Parallel apron flashing to
extend over two crests
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing.
Durabarrier™ or approved
breather type building underlay.
H3.1 treated SG8 timber
cavity batten.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Gutter to Wall Junction
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-28
Flexible flashing tape lapped over
apron flashing upstand
Transition tray flashing
to underside of roofing
in accordance with
NZBC E2/AS1
Fascia with transition
tray flashing
Jan 2014
Support nog
Underlay carried up
face of framing
behind upstand
flashing
Timber framing
35m
m
min
5mm gap max for notched
downturn
BGC Continuous vent strip
110mm upstand flashing
with 10mm hem & cover of
two crests
110m
m
75m
m
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Parallel Apron Flashing Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-29
BGC Stratum™ with all cut
edges sealed before fixing
Note:
x = Refer to NZBC E2 / AS1 Table for
flashing cover requirements
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
x
15m
m
Durabarrier™ or approved
breather type building
underlay or flexible flashing
tape lapped over apron
flashing
Jan 2014
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Transverse Apron Flashing Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-30
x
Support nog
Timber Framing.
Underlay carried up face of
framing behind upstand flashing.
BGC Stratum™ with all cut
edges sealed before fixing
125
35
15
Continuous vent strip
Apron flashing 125mm upstand
flashing with hem.
Roof framing.
min
Note:
x = Refer to NZBC E2 / AS1 Table for
flashing cover requirements
Selected roofing material with
upturn
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
75
Durabarrier™ or approved
breather type building
underlay or flexible flashing
tape lapped over apron
flashing
Solid backing around pipe
penetration
Air seal all round
Wall underlay
Pipe with 5° slope
20mm vertical timber cavity
batten. H3.1 treated timber
Sealant with backing rod
Where possible, provide
outwards fall to pipework for
water run-off
Air seal all round
Wall underlay
Flexible flashing tape adhering around
pipe and onto building underlay (100mm
lap to underlay and 25mm to pipe)
Flange to protect sealant from exposure
to sunlight
20mm vertical timber cavity
batten. H3.1 treated SG8
timber
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Pipe Penetration Detail
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-31
BGC Stratum™ with all cut
edges sealed before fixing
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Jan 2014
GCB Fibre Cement
1:2 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
External Boxed Corner -
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-33
May 2019
Cavity Batten Note:
Refer to cavity batten layout
for batten sizes, types,
spacing's & fixings.
Durabarrier™ or approved breather type
building underlay continuous around
corner
Timber framing.
65x2.8mm Roundrive ring
shank galv nail.
H3.1 treated vertical timber cavity batten
BGC Stratum™ with all cut
edges sealed before fixing
19
90
109
19
Corner trim nail fixed.
Trim to be either
NuLine Weatherboard
cut to suit or timber
50 x 10g SS CSK Wood
Screw @ 300 ctrs
H3.1 Timber Scriber cut to
profile of weather boards
90x90 0.7 Galv or PVC flashing
(100mm wide each side)
Stratum adhered to flashing with
continue 6mm brad of
Bostik Seal 'N' Flex FC
30x1.6mm C Series Stainless Steel Brad
Join miter cut boards with Bostik Seal 'N' Flex FC.
Cut off excess once sealant has cured
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Head Detail - Facing
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-34
May 2019
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
35
7.5
Note where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
BGC Stratum™ with all cut
edges sealed with BGC edge
sealer or similar before fixing.
Apply continue 6mm bead of Bostik
Seal 'N' Flex FC adhesive sealant
(not shown for clarity).
Durabarrier™ or approved breather
type building underlay flexible
flashing tape to opening corners.
H3.1 treated timber cavity batten.
Timber framing.
Temporary timber packer
removed after fixing.
Air seal over PEF backing rod.
PC Aluminium window joinery.
PC Aluminium head flashing
with 15° fall with stop ends.
BGC Vermin proof
vent strip or similar.
Additional layer of flexible flashing
tape or building underlay lapped
over head flashing.
Selected facing to suit.
Timber blocking to suit.
35mm Min flashing cover
10
5
15
15mm Min overhang
5mm Min gap
10mm Min flashing cover
70mm H3.1 timber packer
trimmed to suit
7.5mm Min
30x1.6mm C Series Stainless Steel Brad
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Jamb Detail - Facing
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-35
May 2019
BGC Stratum™ with all
cut sheet edges sealed
before fixing.
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
Stratum™ adhered to batten with
cont. 6mm bead of Bostik Seal 'N'
Flex FC (not shown for clarity).
Foam seal tightly
finished against J
flashing
Durabarrier™ or building underlay and
flexible flashing tape. Flexible flashing
tape to be continuous along sill, 100mm
min. up each jamb and 50mm onto face
of building underlay.
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
10
20
Air seal over backing rod.
H3.1 timber packer.
H3.1 timber cavity packer.
Aluminium window joinery.
BGC J flashing.
Line of head flashing over.
10mm Min cover to Stratum™ by
aluminium window joinery. 10mm
cover to window joinery by facing.
20mm min overhang of head flashing.
Timber framing.
Durabarrier™ or approved
breather type building underlay
20mm vertical timber cavity
batten(s) H3.1 treated timber
H3.1 timber BGC precut scriber
Selected facing to suit - fixed at 400
CTRS (staggered)
Selected timber packer to suit
65x2.8mm Roundrive ring shank galv nail.
H3.1 timber packer.
Air seal over backing rod.
7.5mm Min.
Durabarrier™ or building underlay and flexible
flashing tape. Flexible flashing tape to be
continuous along sill, 100mm min. up each jamb
and 50mm onto face of building underlay.
H3.1 treated SG8 timber cavity batten
Sill support bar.
BGC Stratum™ with all cut sheet
edges sealed before fixing.
Durabarrier™ or approved
breather type building
underlay.
Note. Where Durabarrier™ is used
flashing tape must be applied to the
entire opening
8mm Min cover to Stratum™ by aluminium
window joinery.
Stratum™ adhered to batten with cont. 6mm
bead of Bostik Seal 'N' Flex FC (not shown for
clarity).
GCB Fibre Cement
1:5 @ A4
DATE
SCALE
DETAIL NO.
PROFILE
DETAIL
Window Sill Detail - Facing
Cavity Construction
BGC Stratum™ and Stratum™ Duo
ST-36
Cavity Batten Note:
Refer to cavity batten
layout for batten sizes,
types, spacing's & fixings
Cladding fixing note:
Refer to cladding fixing
layout for all fixing types
& spacing's
Compressible foam seal tightly finished against
cladding or Bostik Seal 'N' Flex sealant.
May 2019
Aluminium window joinery.
Jamb Facings
Sill facing to suit, fixed at 400mm crs (staggered)
Sill facing 15° slope
65x2.8mm Roundrive
ring shank galv nail.