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Technical
Teechnical Datasheet
Datasheet
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iption
Product Descr
Description
A Black polyethylene based self adhesive
Dimensions
and Colour
timber
floor reinforcing
sheet material;
manufactured using 50% recycled plastic
ingredients.
Approved under T915 by the Building Element
Assessment Laboratory of New Zealand Building Code Compliant. There are no
equivalent British Standards for this category
of products.
To facilitate the secure bonding of ceramic
and porcelain tiles, mosaics and natural
stones to timber floors and problematical
substrates. G- Flex is a strong durable sheet
material which effectively counteracts
deflective forces in a timber floor.
Dimensions and Colour
G-Flex comes in a pack of four black sheets
Range
each
sheet is 600mm x 500mm x 1mm
depth. The pack covers an area of 1.2m
square.
Key Testing Procedures Objective
70m
0mm when installed
To assess the ability of G-Flex
over nominated timber substrates T & G Floor
boards/Chipboard/Plywood to deflect 1.6mm
(L/360) when performing as a complete
system, preventing the fracture of the finish
tiled floor.
8mm
8m
Range
Test Method: A point load was exerted
onto the test floor at a rate of 1mm/min to
achieve the L/360 deflection, where L equals
the span length. Floors have been designed
with joists spaced at 600mm centres,
therefore the maximum deflection in the
floors should be no more than 1.6mm.
All floors should not exceed the deflection
criteria of L/360, as recommended by The
Tile Council of North America Criteria:
All floors should be able to resist a deflection
of 1.6mm(L/360) with no visible signs of
failure. i.e. tiles cracking.
Result
No failure occurred when the floors were
deflected at 1.6mm. The floors were then
subjected to a maximum deflection of up to
10mm at which point the tiles cracked down
the centre under the point load at up to
6.7mm deflection. In a test bed constructed
in such a way that the grout line was at the
centre the floor achieved a maximum
deflection of 10mm, with the observation that
there was hairline cracking in the grout.
Teechnical Dat
asheet
Technical
Datasheet
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Preparation
Technical Details
1. Existing wooden floors must be rigid, stable
and capable of supporting additional load
without flexing and have sufficient
ventilation beneath them.
Allied Products
2. Prior to laying Genesis G-Flex all loose
boards should be secured with appropriate
sized screws (not nails). This should be done
by screwing at 300mm centres. If there is
excessive flexing or movement within the
floor the addition of extra noggins may be
required.
3. Ensuring the floor is clean and free of dust,
prime the floor using a diluted mix of a
suitable Universal Bonding Agent and
Sealer diluted 4 parts water to one part
U.B.A.S.
4. Leave to dry prior to applying G-Flex.
Using G-Flex on tongue and grooved
wooden, chipboard or plywood floors
1. Follow Preparation steps 1 - 4.
2. Lay G-Flex into place and where necessary
cut to fit using scissors or a suitable cutting
knife.
3. Remove the backing release paper and lay
G-Flex into place ensuring good adhesion
to the floor.
4. Continue over the entire floor area fixing
subsequent sheets of G-Flex in a brick bond
fashion. This ensures the maximum amount
of strengthening characteristics over the
floor area.
5. A suitable rapid setting flexible adhesive
should be trowelled into the surface of the
G-Flex ensuring the mesh cavities are
completely filled; the surface should then
be lightly combed prior to fixing tiles.
Using G-Flex in conjunction with Genesis
Waterproof Tanking System
1. Follow Preparation steps 1 - 4.
2. Where applicable cut out the timber floor
to install a shower deck and make
connections for drainage.
3. Place the G-Flex into position on the floor,
removing the backing sheet for selfadhesive fixing.
4. Applyenance
a thin, even layer of tile adhesive
Maint
over the G-Flex to provide a flat surface on
which to lay the Genesis Waterproof
Sealing Mat SWR. This will waterproof all
sections of the timber floor.
5. Use the Waterproof Joint Tape SWJ to seal
joints in the Sealing Mat SWR and at the
internal floor to wall joints.
6. Apply the Genesis Waterproof Tanking Kit
SWK600 to waterproof prior to tiling.
7. Using a brush apply the first coat of
Genesis Waterproof Membrane SWK600
at internal corners, wall and floor junctions,
and the joint between the shower deck and
waterproof mat.
8. Ensure all the Waterproof Tanking
components are pressed firmly into
position and allow to dry.
9. Using a medium roller apply the first coat
of membrane to wall and floor. It is not
necessary to coat the shower deck (only
around the drain collar) as it is waterproof.
Allow to dry. Apply the second coat of
membrane over walls, floors and Wet room
components to ensure a good seal is
achieved. The optimum thickness of the
membrane to be minimum 0.6mm for the
two coats.
10. Allow to dry for at least 2 hours before
commencing tiling.
Using G-Flex when fixing tiles to timber
floors incorporating electrical undertile
heating systems
1. Follow Preparation steps 1 - 4.
2. Spread a thin, even layer of a suitable rapid
flex adhesive over the G-Flex ensuring the
mesh cavities are filled leaving a flat
surface on which to lay the electric heating
system. Allow adhesive
to dry.
3. Lay out the heating system mat
and tape in position.
4. Trowel the tile adhesive using a suitable
Genesis trowel ensuring care is taken not
to cut the wires in the electric heating mat
when applying the adhesive.
5. Allow a minimum of 7 days for the
adhesive to dry out before switching on.
Installation
Ins
tallation
1. Ensuring the floor is clean and free of dust,
prime the floor using a diluted mix of a
suitable Universal Bonding Agent and
Sealer diluted 4 parts water to one part
U.B.A.S. This should be left to dry prior to
applying G-Flex.
2. Lay G-Flex into place and cut to fit using
scissors or a suitable cutting knife.
3. Remove the backing release paper and lay
G-Flex into place ensuring good adhesion to
the floor.
4. Continue over the entire floor area fixing
subsequent sheets of G-Flex in a brickbond
fashion. This ensures the maximum amount
of strengthening characteristics over the
floor area.
5. A suitable adhesive should be trowelled into
the surface of the G-Flex, ensuring the mesh
is filled. The surface should then be lightly
combed prior to fixing tiles.
6. Once fully cured, grout the tiled floor
using a suitable grout.
Specific Performance within the
NZ Building Code
Clause B1 –Structure
G-Flex system when used in accordance with
this Appraisal will meet performance
requirements of B1.3.2 of the New Zealand
Building Code.
Clause B2 –Durability
G-Flex System when used in accordance with
this Appraisal will meet Performance B2.3.1(c)
and B2.3.2 of the New Zealand Building Code.
Clause E3 –Internal Moisture
G-Flex System when used in accordance with
this Appraisal will meet Performance E3.3.3 of
the New Zealand Building Code.
Clause F2 –Hazardous Building Materials
The product contains no hazardous materials
complying with clause F2.3.1 of the Building
Code.
Scope and Limitations.
G-Flex System has been appraised as an
internal reinforcement sheet system to be used
with timber floors complying with NZS3604
with tiles or natural stone and all accessories
complying with the requirement of Clause
E3.3.3. The timber floor shall have joist
spacing of no greater than 600mm centres
as described in NZS3604.
* Consult Genesis regarding
applications on other substrates.
Genesis APS International
International Ltd UK Head Office & Factor y
Stokesley
Stokesley Business Park
Park Stokesley
Stokesley North
Nor th Yorkshire
Yor
o kshire TS9
TS9 5JZ UK
Tel: +44
+44 (0)1642
(0)1642 7
13000 FFax:
ax: +4
4 (0)1
642 7
13777
Tel:
713000
+44
(0)1642
713777
Email: info@genesis-aps.com
info@genesis-aps.com www.genesis-aps.com
www.genesis-aps.com www.genesis-flooring.com
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