pro clima Solitex Extasana Wall Underlay User Guide
- June 13, 2024
- pro clima
Table of Contents
Solitex Extasana Wall Underlay
Product Information
The product is a weather resistive barrier for light steel frame
walls. It is designed to provide protection against weather
elements and ensure insulation efficiency. The system includes
various components such as the DUPLEX double-sided tape, pro clima
PRESSFIX tool, ROFLEX grommets, and sealing materials.
Key Features:
-
Provides weather resistance for light steel frame walls
-
Easy installation with the use of DUPLEX double-sided tape and
PRESSFIX tool -
ROFLEX grommets for sealing pipe penetrations
-
Suitable for various substrates including mineral substrates,
wood, plastics, and metal
Important Notes:
-
DUPLEX double-sided tape is not intended for long-term fixing
but serves as an installation aid -
Attention should be given to avoiding curved corners during
installation -
ROFLEX grommets come in different sizes for a weathertight
seal -
Proper sealing of the damp course to the slab is recommended to
prevent airflow
Product Usage Instructions
-
Clean all sharp edges and burrs from the light steel framing
before installation. -
Measure and mark the location of the top edge of the membrane
based on bottom edge flashing details. -
Apply DUPLEX double-sided tape to studs at suitable intervals
to temporarily hold the membrane. Use the PRESSFIX tool to apply
adequate pressure and remove release paper. -
Pull the membrane taut and fix it securely.
-
Repeat steps 3 and 4 as required.
-
Follow the specific instructions for prepping the reveals and
fixing the flaps into the window reveal using DUPLEX. -
Ensure a minimum 150mm overlap and proper sealing when applying
the membrane on walls. -
Pay special attention to avoid curved corners during
installation. -
Use pro clima PRESSFIX tool to push the membrane into corners
and apply pressure. -
Cut slits for pipe penetrations and use ROFLEX grommets for a
weathertight seal. Ensure a tight fit over the pipe. -
Follow the instructions for joint application on various
substrates. -
Seal the damp course to the slab using compressible closed cell
foam strip or sealants. -
Apply the product to substrates to prepare for optimum
adhesion.
For more information and detailed instructions, please refer to
the official user manual available at
www.proclima.co.nz.
SOLITEX EXTASANA®
Application & Fixing Guide
SOLITEX EXTASANA®
Light Steel Frame
Weather Resistive Barrier (WRB) for Façade Systems
Highly durable Weather Resistive Barrier (WRB) system for weathertight façades
and condensation protection
SOLITEX EXTASANA® – Application & Fixing Guide Light Steel Frame
SOLITEX EXTASANA® can be installed according to AS 4200.1-2017 or as per pro
clima Installation Method outlined in the details below. For more information
on the market leading, comprehensive and transparent pro clima System Warranty
please visit www.proclima.co.nz/warranties.
1 SYSTEM Weather Resistive Barrier
Wall
1
Preparing Light Steel Framing Clean all sharp edges and burrs from the steel
framing to ensure the membrane will not be damaged during installation or in
service.
2
Measuring and Marking Measure and mark where the top edge of the membrane will
be located. This will vary depending on the bottom edge flashing details.
1
IMPORTANT
DUPLEX double-sided tape is not intended to
provide long-term fixing but is an
installation aid to hold the membrane in place
until the façade mounting system is in
place.
The membrane should be pulled taut to ensure TESCON EXTORA® tape
can be easily installed and adequate pressure
applied using the PRESSFIX tool.
3
Apply DUPLEX as required
Fixing Using pro clima DUPLEX Apply DUPLEX double-sided tape to studs at suitable intervals to temporarily hold the membrane. Apply pressure with PRESSFIX, then remove release paper.
4
2
Pull taut and fix
Aligning SOLITEX EXTASANA® (1) Pull the membrane taut along the top edge adhering to DUPLEX as you go. (2) Adhere the bottom edge at the center while applying tension.
Apply DUPLEX as required
5
3 Pull taut and fix
Setting in SOLITEX EXTASANA® (3) Pull taut and adhere the bottom corner to pro clima DUPLEX. Apply moderate pressure with the PRESSFIX tool to ensure bonding to DUPLEX.
6
Successive Layers of SOLITEX EXTASANA® Apply pro clima DUPLEX at suitable
intervals to accommodate the next layer of SOLITEX EXTASANA®.
…and the insulation is perfect!
2 SYSTEM Weather Resistive Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
IMPORTANT
The PRESSFIX tool MUST be used to apply pressure to TESCON EXTORA®, TESCON
EXTOSEAL® and DUPLEX after application to ensure the glue is activated and can
reach maximum hold strength.
150 mm
7
Successive Layers of SOLITEX EXTASANA® Apply successive layers of SOLITEX
EXTASANA® using an upside-down sequence ensuring the adequate force is applied
to adhere the membrane with slight tension.
8
Overlapping SOLITEX EXTASANA® The membrane shall be overlapped 150 mm. The
white line represents the 150 mm overlap line and can be used as guidance to
align successive layers.
DUPLEX
PRESSFIX is a malleable plastic tool for applying pressure to pro clima Adhesive TESCON® Tapes to ensure long term durable bonding.
9
Window Reveal Dressing Cut the membrane at window reveals with 45° angle cuts
forming 4 flaps to be dressed into the reveal.
10
Prepping the Reveals The flaps should be fixed into the window reveal using
pro clima DUPLEX placed at the rear edge of the window reveal.
PRESSFIX
11
Folding the Reveals Fold the SOLITEX EXTASANA® flaps back into the reveals
cutting the flaps flush with the back edge of the metal framing.
12
Connections Using TESCON EXTORA® Flashing tape Apply at minimum TESCON EXTORA®
60 mm to the horizontal joints and apply pressure with the PRESSFIX tool.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
3 SYSTEM Weather Resistive Barrier
Wall
Note: Ensure all framing is covered with TESCON EXTOSEAL® with no exposed framing at the corners.
Min 150 mm
13
Sill Flashing TESCON EXTOSEAL® Exposed framing at corners of the sill needs
to be covered with TESCON EXTOSEAL® Sill Tape to prevent any leaks around
windows entering the framing.
14
Applying TESCON EXTOSEAL® Sill Tape TESCON EXTOSEAL® Sill Tape should extend
at least 150 mm up the jambs. The corners of the TESCON EXTOSEAL® are
stretched & adhered into place.
IMPORTANT
TESCON EXTOSEAL® is required to be stretched at the window corners.
Overstretching TESCON EXTOSEAL® can lead to
thinning and tearing.
Deeper frames (more than 90 mm) will require the TESCON EXTOSEAL® to extend
further to ensure no exposed framing.
15
Min 150 mm
Min 50mm overlap on front face
Window Corner Seal with TESCON EXTOSEAL® At corners, TESCON EXTOSEAL® should extend at least 150 mm in each direction. For wider frames the 200 mm wide TESCON EXTOSEAL® should be used.
16
Butterfly Where TESCON EXTOSEAL® has been over stretched or damaged, apply a
butterfly of TESCON EXTORA®.
TESCON® NAIDECK Self-sealing strip for superior weathertightness when using
temporary fixings of brick ties will provide an extra level of
protection.
17
Brick Veneer SOLITEX EXTASANA® Fixing Galvanised hex screws & washers (see
steps 61 and 62) at 300 mm centres to temporarily hold SOLITEX EXTASANA® prior
to brickwork.
18
TESCON® NAIDECK for Fixings and Attachments For extra security, TESCON®
NAIDECK can be used to seal any temporary fixings other attachments fixed to
the studs through the SOLITEX EXTASANA® WRB layer.
…and the insulation is perfect!
4 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
IMPORTANT
SOLITEX EXTASANA® installed with rounded corners will make it difficult or
impossible to install battens. Rounded corners may result in batten
installation damaging SOLITEX EXTASANA® and potential loss of
weathertightness.
19
Internal Corners Special attention to ensure that curved corners do not occur.
20
Corner Connections Connecting SOLITEX EXTASANA® in the corner can prevent the
risk of short corners. Cut flush with the stud.
21
Apply Membrane to Faces Each face of the building should be treated with a new
piece of SOLITEX EXTASANA® and can be connected in the corner to prevent
curved corners.
22
Abutting Membrane at Corners The second piece should be cut long enough to
extend > 50 mm around the corner. A strip of pro clima DUPLEX can be used to
hold the flap in place.
Min 50 mm overlap
23
Setting the Corner pro clima PRESSFIX tool to be used to ensure the membrane
is pushed hard into the corner, adhered to the DUPLEX and pressure applied
with PRESSFIX.
24
Taping the Corner TESCON EXTORA® should never be applied directly in the
corner. The connection should be made on a flat section of the wall just away
from the corner.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
5 SYSTEM Weather Resistive Barrier
Wall
25
Cutting for Penetrations Four slits are made in horizontal and vertical axis
only large enough to fit the diameter of pipe.
26
Push Pipe Through The pipe is pushed through and opens the tabs. Trim the tabs
to allow for ROFLEX and TESCON EXTORA® application.
IMPORTANT
ROFLEX grommets come in various sizes
(20 mm 320 mm) and it is important the correct size for the pipe is selected
and installed
to ensure a weathertight seal.
27
Fitting ROFLEX Place pro clima ROFLEX over the pipe in a diamond orientation.
It should be a tight fit over the pipe. The pipe should be smooth and clean.
28
TESCON EXTORA® Application Start to apply TESCON EXTORA® 60 mm width at the
bottom edge and apply pressure with the PRESSFIX tool.
ROFLEX
Sealing grommet made of strong and highly flexible EPDM for rapid and
permanent weathertight feedthroughs for pipes. Up to 180 days UV
exposure.
29
TESCON EXTORA® Application Apply TESCON EXTORA® around the whole grommet
working anti-clockwise to ensure the top layers overlap the lower layers.
30
TESCON EXTORA® Application At the TESCON EXTORA® tape overlaps ensure the top
layer fully covers the end of the TESCON EXTORA® layer below for optimum
weathertightness.
…and the insulation is perfect!
6 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
IMPORTANT
ORCON® CLASSIC achieves permanent adhesion on all pro clima Weather Resistive
Barriers including SOLITEX MENTO® and SOLITEX EXTASANA®.
Joints can be carried out on mineral substrates (such as brickwork or
concrete), on unplaned, planed and painted wood, hard plastics and non-rusted
metal (e.g. pipes, windows etc.), hard wood-based panels (chipboard, OSB,
plywood panels, MDF board).
31
Connection to Masonry Where SOLITEX EXTASANA® meets dissimilar wall types
(concrete or masonry) a durable connection must be made.
32
Make a Durable Connection SOLITEX EXTASANA® shall be fixed with DUPLEX as
required and cut with a 30 mm flap.
ORCON® CLASSIC is a durable airtight sealing glue suitable for bonding all pro clima Products to any building material; smooth or rough, masonry or timber. It is fast drying and performs even in extreme humidity or damp conditions.
33
Unplaned Membrane Overlaps Membrane overlaps should be at least 150 mm of the
top layer lapping over the bottom layer of SOLITEX EXTASANA®. Staple at 150 mm
centres.
34
TESCON EXTORA® Overlap TESCON EXTORA® shall be applied and then firm pressure
applied using the PRESSFIX tool.
35
Weatherproof Seal ORCON® CLASSIC is used to seal the 30 mm flap to the masonry
structure. DO NOT press the ORCON® bead flat, leave a thick bead for long term
flexibility.
TESCON® NAIDECK behind angle
36
Mechanical Fasten at Edge SOLITEX EXTASANA® must be supported at the edge. A
galvanised metal angle fixed at maximum 300 mm spacing with either hex screws
and/or rail fixings.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
7 SYSTEM Weather Resistive Barrier
Wall
37
Soffit Junctions SOLITEX EXTASANA® should be connected into any concrete
soffits that the framed wall butts into. Cover the light steel frame with
DUPLEX.
38
Fixing SOLITEX EXTASANA® SOLITEX EXTASANA® is held in place using pro clima
DUPLEX leaving a 30 mm overlap onto the concrete for adhering.
IMPORTANT
It is recommended the damp course is sealed to the slab to prevent
airflow under the bottom plate in case of
undulating slab finishes. This can be
achieved using compressible closed cell
foam strip or sealants.
On loose, flakey masonry surfaces such as old sandstock bricks or old concrete
it may be necessary to apply TESCON® PRIMER RP.
39
Seal to the Soffit Using ORCON® CLASSIC The SOLITEX EXTASANA® 30 mm overlap
should be adhered to the soffit using a bead of ORCON® CLASSIC. (See matrix at
step 60 for compatibility).
40
Weatherproof Seal Set SOLITEX EXTASANA® overlap onto the ORCON® CLASSIC bead
in full contact. DO NOT press the bead completely flat, allowing a lasting,
flexible seal.
TESCON® PRIMER RP
Applied to substrates to prepare for optimum adhesion
such as concrete, masonry, timber, fibre cement, plywood,
oriented strand board (OSB), and other porous or friable
surfaces prior to application of TESCON EXTORA®.
41
Seal to DPC Using ORCON® CLASSIC When the frame is finished flush with the
slab edge, SOLITEX EXTASANA® is adhered to the DPC using ORCON® CLASSIC.
42
Leave ORCON® CLASSIC Bead with Body Thickness ORCON® CLASSIC should not be
squashed flat but left with a suitable thickness to allow a flexible joint.
…and the insulation is perfect!
8 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
IMPORTANT
Temporary fixing requirements are to ensure the SOLITEX EXTASANA® is not
pulled from the wall by wind loads. The risk of this occurring is at the
determination of the builder and the duration between wrapping and brickwork.
Brick ties with hex screws are deemed suitable for holding the membrane in
place permanently. TESCON® NAIDECK will provide an extra level of protection
from leaks.
43
Brick Veneer Install SOLITEX EXTASANA® onto brick veneer framing with a 50 mm
overlap onto the slab edge or footings.
44
Apply ORCON® CLASSIC Bead to the Damp Course A bead of ORCON® CLASSIC is
applied to the damp course to seal the connection between the flashing and the
damp course.
TESCON® NAIDECK Self-sealing strip for superior weathertightness when using temporary fixings of brick ties will provide an extra level of protection.
45
Fix SOLITEX EXTASANA® to Flashing with ORCON® The flashing must be taped to
each stud with TESCON EXTORA®. SOLITEX EXTASANA® shall be fixed to the
flashing using a bead of ORCON® CLASSIC adhesive.
46
Mechanically Fix Flashing Galvanised hex screws & washers (see 61 & 62) at
every stud to mechanically fix the bottom edge of SOLITEX EXTASANA® and the
flashing.
300 mm
AS 4773
47
Temporary Fixing with Washers and Hex Screws If delays between wrapping and
brickwork are expected, use galvanised hex screws & washers (see 61 & 62) at
300 mm centres across the entire wall.
48
Permeant Fixing Using Face-Fixed Brick Ties Permanent fixing of the membrane
can be achieved using just the brick ties with hex screws if fixed immediately
after wrap is installed.
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SOLITEX EXTASANA® Application & Fixing Guide – Light Steel Frame
9 SYSTEM Weather Resistive Barrier
Wall
49
Mechanically Fasten Sill Flashing to Studs Sill flashing needs to be fixed at
the correct height as per the architectural details using one tec-screw and
washer per stud 30 mm from top edge of flashing.
50
Seal Flashing Using TESCON EXTORA® A continuous piece of TESCON EXTORA® 60 mm
tape shall be applied to the top edge of the flashing with suitable pressure
applied using the PRESSFIX tool.
IMPORTANT
Flashing materials should always be mechanically fastened prior to taping the
top edge of the flashing. This ensures that any stress during the construction
process will not damage the TESCON EXTORA® seal to the top edge of the
flashing.
51
Set the Flashing as per Sill Details Be sure to set the flashing at the
correct height to drain to the sill weep holes. TESCON EXTORA® cannot be
removed once adhered.
52
Fix the Header Flashing Header flashing needs to be fixed at correct height as
per the architectural details using minimum 2 staples per stud.
53
Seal Flashing Using TESCON EXTORA® A continuous piece of TESCON EXTORA® 60 mm
tape shall be applied to the top edge of the flashing with suitable pressure
applied using the PRESSFIX tool.
54
Seal to Slab Edge with TESCON EXTORA® The flashing can be treated by the brick
layers as any other flashing would with appropriate weep holes for drainage
and ventilation.
…and the insulation is perfect!
10 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
55
Vertical Rails 600 mm Installed vertically to the stud wall, top hats spaced
at a maximum of 600 mm are suitable to hold SOLITEX EXTASANA® with no
additional fixings.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
11 SYSTEM Weather Resistive Barrier
Wall
IMPORTANT
Rails provide continuous support for
the membrane under leeward wind pressure.
The studs provide support for the
membrane under windward pressure. The maximum spans in both directions are 600
mm. Cladding rails at spans
larger than 600 mm will require additional
point fixings.
56
Horizontal Rails 600 mm Installed horizontally over the studs, top hats spaced
at a maximum of 600 mm are suitable to hold SOLITEX EXTASANA® with no
additional fixings.
…and the insulation is perfect!
12 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
57
Horizontal Rails 900 mm Horizontal top hats spaced at more than 600 mm require
additional fixings to be added in-between to hold SOLITEX EXTASANA® at 300 mm
centres with studs at a maximum of 600 mm centres. Galvanised hex self-
drilling screws, 20 mm long with EPDM washer (12 gauge) shall be used to fix
M8 large galvanised flat washers 32 mm in diameter to hold SOLITEX EXTASANA®
as shown.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
13 SYSTEM Weather Resistive Barrier
Wall
IMPORTANT
TESCON® NAIDECK or
TESCON EXTOSEAL® are
butyl sealing products.
These small patches
under the mounting
b
c
brackets are recommended.
The butyl sealing
material is pulled into
the hole created when
a screw is fitted. This is
particularly important
with oval holes where
the EPDM washers on
the hex screws cannot
seal effectively.
58
Aluminium Bracketry System Brackets are evenly spaced onto the stud wall. When
spaced > 600 mm additional fixings at max 300 mm centres on max 600 mm center
studs are required to hold SOLITEX EXTASANA®. Galvanised hex self-drilling
screws, 20 mm long with EPDM washer (12 gauge) shall be used to fix M8 large
galvanised flat washers 32 mm in diameter to hold SOLITEX EXTASANA® as shown.
…and the insulation is perfect!
14 SYSTEM Weather Resistive Barrier Wall
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
IMPORTANT
TESCON® NAIDECK is a butyl sealing product. Small patches cut to fit under the
face fixed brick ties will provide best practice waterproofing.
The butyl sealing material is pulled into the hole created when a screw or
nail is fixed.
TESCON® NAIDECK Self-sealing strip for superior weathertightness when using
brick ties.
59
Brick Veneer SOLITEX EXTASANA® installation needs to be finished as a
continuous weathertight system. Galvanised hex screws & washers (see 62) or
cap fasteners (see 63) at 300 mm centres for temporary fixing of SOLITEX
EXTASANA® prior to brickwork. All staple holes and penetrations need to be
sealed prior to the brickwork being completed. The brick ties must be face-
fixed brick ties, fixed to the front of each stud. For superior
weathertightness TESCON® NAIDECK can be used behind the brick ties to seal
nail or screw penetrations.
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SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
15 SYSTEM Weather Resistive Barrier
Wall
ADHESION TEST
If TESCON® tapes do
not stick properly
because the surface is:
dirty -> clean the
surface
c
uneven -> use
TESCON® PRIMER RP
& ORCON® CLASSIC
sealant instead.
If TESCON® tapes will not stick to a clean surface then TESCON® PRIMER RP must be used.
60
pro clima Adhesive Product Matrix SOLITEX EXTASANA® is compatible with all pro
clima Adhesive Tapes and Sealants. Optimum weatherproofing is achieved when
wind tight connections are made between SOLITEX EXTASANA® and other building
materials and components. The table above provides guidance on the use of pro
clima Adhesive Products when used to connect SOLITEX EXTASANA® with other
common building materials.
…and the insulation is perfect!
SOLITEX EXTASANA® – Application & Fixing Guide – Light Steel Frame
16 SYSTEM Weather Resistive Barrier
Wall
61
62
Point Fasteners Galvanised hex self-drilling screws with EPDM washer 12-gauge 20 mm to ensure fixings do not allow a water leakage path.
Washers for Load Spreading M8 large galvanised flat washers 8 mm x 32 mm x 1.8 mm provide load spreading to increase fixing pressure rating.
Aluminium Bracketry System Brackets are evenly spaced onto the stud wall. When
spaced > 600 mm additional fixings at max 300 mm centres on max 600 mm centre
studs are required to hold SOLITEX EXTASANA®. Galvanised hex self-drilling
screws, 20 mm long with EPDM washer (12 gauge) shall be used to fix M8 large
galvanised flat washers 32 mm in diameter to hold SOLITEX EXTASANA® as shown.
Recommendations and requirements The recommendations in this guide use pro
clima DUPLEX as a temporary fixing method to hold SOLITEX EXTASANA® as it is
being applied to steel framing. SOLITEX EXTASANA®, TESCON EXTORA® and TESCON
EXTOSEAL® form a continuous system. Any damage or tears should be patched with
TESCON EXTORA®. When conditions on site are expected to be windy, it is
recommended that additional fixings are included at regular intervals in
accordance with the fixing recommendations in this guide to ensure the wind
does not pull SOLITEX EXTASANA® from the wall prior to the cladding mounting
systems being installed. It is recommended that the cladding mounting systems
are installed as soon as possible after installing the membrane and close
attention is paid to wind forecasts. pro clima KAFLEX can be used for cable
penetrations when necessary. Although SOLITEX EXTASANA® provides a level of
weather protection prior to cladding, it is not intended as an early close-in
system and is designed to work in combination with the cladding systems to
provide weathertightness. It is your responsibility to check the suitability
of the subsurface when applying ORCON® CLASSIC; adhesion tests are recommended
in certain cases. TESCON® PRIMER RP is a primer that penetrates the sub-
surface of porous substrates locking up loose particles and creating a highly
adhesive substrate for all pro clima adhesive tapes and compounds to be
applied.
Certification
TESCON EXTORA®
Pressure-sensitive adhesive tape for overlaps and end laps in SOLITEX
EXTASANA® system.
TESCON EXTOSEAL®
Flexible flashing tape for use around window and door
openings as part of the SOLITEX EXTASANA® system.
DUPLEX
Double-sided acrylic tape for temporary fixing of SOLITEX
EXTASANA® to steel studs.
Your local support
0800 PRO CLIMA (776 254) Technical: welcome@proclima.co.nz General: welcome@proclima.co.nz www.proclima.co.nz
www.proclima.co.nz
© This document is the property of Pro Clima NZ Ltd and must not be copied
without permission. This document is a guideline only and subject to change
without notice.
Issued: 27.1.2023
References
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