Translucent Roofing - Steel & Tube
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Translucent
Roofing
MARCH 2017
Distributed by:
www.alsynite.co.nz
Company Profile
Proudly New Zealand owned and accreditation not only guarantees accurate ensures Alsynite continues to meet ongoing
operated, Alsynite is an internationally systems processes but also ensures customer requirements.
recognised and respected roofing consistent and monitored product legally
product manufacturer, having designed, certified to AS 4256.3:2006. Topglass® GC is also manufactured in
built and commissioned a state-of-the- Bangkok, Thailand by I-Conns Asia; in
art manufacturing facility in Te Rapa, Alsynite NZ Ltd product brands include the HCM City, Vietnam by Naaco Plastic JSC
Hamilton in February 2008. much respected Laserlite® polycarbonate It is also manufactured in Australia under
roofing range, Topglass® GRP sheeting, licence to FGW Corporation Pty Ltd in Perth
As new sheeting product development Alsynite Industrial turbine rotary Western Australia, and Galaxy Rooflite
is an integral part of the company’s ventilators and Tubular Skylights, and an in Sydney – servicing South, East and
business, Alsynite New Zealand Ltd extensive range of fastenings and roofing North Australia markets. All Topglass GC
remain at the cutting edge, offering accessories. Alsynite also distribute a full roofing is manufactured using the same
international customers state-of-the-art range of Polygold Pure formaldehyde-free innovative Alsynite New Zealand processes
manufacturing equipment and processes fibreglass insulation in Blanket and Biscuit – this ensures that customers can be
designed to remain at the forefront of the segments. assured and trust that when they order a
GRP composites industry. Computerised genuine Topglass GC product, it will be
automated production lines with advanced These products and an extensive range of manufactured to the same high standards
forming and curing techniques produce roofing accessories form a natural adjunct that have been set by Alsynite NZ Ltd.
high clarity and solid panel products of all to the translucent sheeting range that
grades.
Alsynite New Zealand Ltd is JAZ-
ANZ accredited under the Benchmark
Certification scheme. Recognised in more
than 90 countries and providing security AS/NZS 4256.3 BS 25999 Z2560902AS 219760 706441
ID: 2349
and respect to our customers JAZ-ANZ
www.alsynite.co.nz www.topglass-frp.com www.fgwcorp.com.au
Projects Using Topglass® Products
Avantidrome, Cambridge - Topglass® GC Twinskin Wilsons Precast, East Tamaki - Topglass® GC
Tui Garden Products, Tauranga – Topclad GC Titania to Roof, Foodstuffs, Christchurch - Topglass® GC, 900mm AITV
Topclad Titania FR50 Internal Walls
Sleepyhead, Christchurch - Topglass® GC
Kmart Distribution, Manukau - Topglass GC ®
Vinegar Plant, Temuka - Topclad GC
Bunnings - Silverdale, Te Awamutu, Mt Wellington
Steel Plant, Milton - Topglass® GC
- Topglass® GC, Cool
Reo Fab, Christchurch - Topglass® GC
Super Cheap Autos Warehouse, Otahuhu - Topglass® GC
John Jones Steel, Christchurch - Topglass® GC
Frucor Distribution, Manukau - Topglass® GC
Carter Holt Harvey, Christchurch - Topglass® FR50+
Bidvest Ltd - Topglass GC SPF 4 with 900mm AITV Ventilators
Drummond & Estridge, Ashburton & Rolleston
Wintech, Hamilton - Topglass® GC
Canterbury Long Run, Timaru - Topglass® GC Twinskin.
Bell Block Aquatic Centre, New Plymouth
- Topglass® Twinskin GC Glencore Grain I Zone - Topglass®
Perrys Galvanising Plant, Hamilton Cancast I Zone - Topglass® GC
- Topclad GC Ultrasafe, Titania
Paul Kelly Motors, Christchurch - Topglass® GC
Milking Systems Ltd, Te Rapa - Topglass® GC
Brown Bros Engineering, Christchurch - Topglass® GC
Mainstream Freight, Wellington - Topglass® GC
Commercial Building Halwyn Drive, Christchurch -
J Swaps Store, Mt Maunganui - Topglass® GC, Cool Topglass® GC FR50+
Torpedo 7 Warehouse, Hamilton Airport - AITV Ventilators Wintering Shed, Darfeild - Topglass®
Ritchie Coachlines, Swanson - Topglass® GC, Opal
Contents
For handling, installation and further technical
details contact your Alsynite representative or
visit www.alsynite.co.nz UV-Stabilised Commercial Grade
To the best of our knowledge, all information
Reinforced Translucent Roofing Page 4-5
contained herein is correct at the time of printing.
It should not be treated as a substitute for
detailed information available in the Alsynite NZ
Technical Catalogue or website www.alsynite.
Gel-Coated Natural Roof Lighting Page 6-7
co.nz
Alsynite NZ Ltd reserves the right to change,
modify, or withdraw products from the market, Heavy Duty, Corrosion Resistant, Solid-Coloured
either permanently or temporarily, at any time Roofing and Cladding System Page 8-9
without notice and without incurring any liability.
© Alsynite NZ Ltd
® Topglass
® Registered Trademark
Solar Protective Gel-Coated Natural Roof Lighting Page 10-11
High Impact, Corrosion Resistant Glass Reinforced
Roofing and Cladding Page 12-13
Page 14-15
FR60
Fire Retardant Translucent Roofing Page 16
Fire Retardant Translucent Roofing Page 17
Heat Reducting Translucent Roofing Page 18-19
Translucent Roofing Page 20
Installation Instructions Page 21
Project Solutions Chart Page 23
Technical Information Page 24
Panel Testing Page 25
Alsynite Industrial Polycarbonate FR 1-S Page 26
Ventilators & Hatches
Alsynite NZ Ltd manufacture an Emergency Alsynite also have a range of aluminium
Ventilation Hatch (EVH) that addresses Industrial Turbine Ventilators in four sizes
the potential problems with GRP sheets (150mm, 300mm, 600mm, 900mm) that are
(not providing ventilation openings in fire suitable for installation on most commercial
situations due to their physical properties). and industrial buildings.
Designed as a specific ventilation system In addition to the industrial ventilator range,
to provide for effective ventilation in the Alsynite also supply Spinaway and Green-
event of a fire and BRANZ tested to comply Vent Solar ventilators and Tubular Skylights,
with Trans-Tasman standards, the hatch all suitable for light commercial or residential
can be fitted to new construction buildings buildings.
or retro fitted to roofs of all profiles and
All enquiries contact:
most pitches.
sales@alsynite.co.nz or 0800 257 964
or visit www.alsynite.co.nz
TOPGLASS® TRANSLUCENT ROOFING 3
UV-Stabilised Commercial Grade Reinforced Translucent Roofing
PBT COURIERS DEPOT, MT WELLINGTON
Introduction • The product is oven cured and profiled Special Applications
Topglass® translucent roofing has to ensure maximum binding and
• Topglass® can be supplied
been specifically developed to combat strength;
encompassing a purpose developed
the effect of ultra violet rays and • The non-porous weather surface corrosive resistant resin for use in
atmospheric pollutants without the prevents water absorption and areas of extreme corrosion.
yellowing and rapid product degradation osmosis; • All Topglass® products can be
associated with commonly available
• Reduced fibre show in comparison supplied in various twin skin systems
glass reinforced roof sheeting. Utilising
to standard commercial grade providing excellent thermal/acoustic
major technological advances developed
translucent roofing products; benefits and energy savings.
by both Alsynite NZ and its suppliers,
Topglass® is supplied as a cost effective • Topglass® can be supplied tinted to
• The weather surface retains its smooth reduce light and heat transmission.
product encompassing a purpose finish for a greater period of time
developed UV stabilised composite resin (See Table page 5). This is
providing self-cleaning benefits; recommended due to the long term
system and surface protected with an
Alsynite proprietary weather surface • An extremely flexible product providing clarity of the sheet;
coating providing longer term effective innovative product variations in • Topglass® roofing profiles can be
light transmission. meeting design criteria; supplied in reduced width sheet if so
required.
• Topglass® is extremely cost effective
UV resistant translucent roof sheeting.
Key Benefits
• Closer inspection of Topglass® Surface Coatings
• Topglass® is manufactured from indicates that only minimal air bubbles
an acrylic modified resin system, are retained in the composite, resulting The Topglass® weather surface polyester
reinforced with high quality glass fibre in improved aesthetics, extreme clarity coating incorporates UV inhibitors
rovings; and improved strength. and offers protection against early
• Topglass® utilises surface coatings yellowing and degradation of the sheet.
which are especially formulated and In specific applications and where minor
designed to provide high quality long corrosion may affect the underside of
Applications
term natural light transmission; the sheeting, an Alsynite NZ proprietary
• Commercial, industrial, institutional high sheen corrosion resistant surface
• Topglass® encompasses in-built and other projects where long-term can be supplied in place of the standard
NZA-5 UV inhibitors which prevent high quality lighting is required; polyester film.
early degradation, yellowing and
embrittlement of the sheet; • School/Kindergarten and public
outdoor areas requiring excellent UV
protection.
4 www.alsynite.co.nz
*Topglass® cool provides blocking of 99.9% UVA
and 100% UVB harmful Ultra Violet Light.
Visible Light and Solar Transmission
Weight Clear Orchid Opal Cool*
Solar heat gain 227w/
m2 Light Solar Light Solar Light Solar Light Solar
Shading co-efficient .33 1800g/m2 (1.1mm) 84% 75% 78% 69% 70% 52% n/a n/a
Solar head gain co-efficient 0.20 2400g/m (1.5mm)
2 74% 65% 65% 60% 58% 49% 33% 22%
UVA transmittance .1% 3660g/m (2.5mm)
2 62% 58% 60% 56% 47% 40% n/a n/a
UVB transmittance 0.0% Light and Solar transmission information is issued as a guide only and based on interpretation of natural
exposure testing. Full test information is available from Alsynite NZ Ltd. Topglass® Solar, Optical and Ultra
Violet Transmission information is contained in the Alsynite NZ Technical Catalogue see www.alsynite.co.nz
Colours and Tints
Topglass® is available in standard Compare the discolouration of sheeting after accelerated weathering
colours of Clear, Orchid, Opal and Cool.
Other colours to suit specific design
criteria are available on request. MOQ
may apply for non-standard colours.
Operating Temperature Seriously discoloured
Standard
The operating temperature range of industrial
Topglass® is - 40° to +110° C. fibreglass
roofing
Visible discolouration
Fire Retardant
Topglass® can be supplied as fire
retardant sheeting. See Topglass® FR 50
Topglass®
Plus, Topglass® 60 FR and Topglass® 25
Unchanged appearance
FR Page 16-17.
Safety
To comply with the requirements of AS
1562.3: 2006 Part 3 Plastic, translucent
roofing products are classified as “Brittle
4,000 hours weatherometer testing simulates
10 years exposure in normal conditions
AGE
Roofing” and therefore not suitable to
Topglass® out-performs conventional fibreglass materials. Topglass® retains light transmission and discolouration
support foot traffic. With exception of resistance after 4,000 hours continuous UV exposure (equivalent to 10 years in ‘normal’ conditions).
Topglass® GC Ultra-Safe (see page 12).
Safety mesh should be installed under all
translucent roofing. Specification
The Translucent roofing shall be
Topglass® reinforced polyester roof
Weathering Performance sheeting as manufactured by Alsynite
NZ Ltd to comply with AS 4256.3: 2006
Topglass® incorporates UV inhibitors.
JAS-ANZ Certification Licence No. 2349.
Extended UV testing shows a significant
reduction in UV degradation and The sheeting shall be measured in nominated roofing and cladding profile
yellowing as shown. Topglass® sheeting g/m² or mm (sheet thickness) and (refer to Technical Information, page
will have a service life of at least 25 manufactured to conform to the 23). Installation shall be carried out in
years in normal conditions. accordance with the requirements of
AS 1562.3: 2006, Topglass® technical
literature and Alsynite NZ Technical
Catalogue.
Damaging UV is blocked
Extended UV
exposure causes
UV protected surface surface degradation WARRANTY
reducing light
transmission
Topglass® is supported by a
comprehensive 25 year warranty and
a 15 year light transmission warranty.
UV stabilised GRP resin system For written project warranties,
Natural daylight passes through contact Alsynite NZ Ltd.
TOPGLASS® TRANSLUCENT ROOFING 5
Gel-Coated Natural Roof Lighting
SUPERCHEAP AUTO WAREHOUSE, ONEHUNGA
Introduction grades of GRP natural roof lighting Applications
Topglass® GC is the flagship of the products is the addition of Alsynites
UV-stabilised 130 micron* EXO- • Roof and wall lighting to all
Topglass® natural lighting family of commercial, industrial, institutional
products, and uses an innovative SET 206 Gelcoat surface which is a
reactive thermo-set to provide a high and other buildings requiring long
manufacturing process developed by term natural lighting without early
Alsynite NZ, whereby a 130 micron* gloss surface;
surface degradation;
EXO-SET 206 Premium Gelcoat is • Topglass® GC, which is manufactured
applied to the weather surface of the to meet the requirements of AS • School/Childcare Centres and public
sheeting. 4256:3.2006, is economical and outdoor areas requiring good UV
provides flexibility whilst resisting protection.
Offering exceptional resistance against
corrosive atmospheres and providing UV degradation and yellowing much
protection against solar deterioration, longer than is commonly experienced
Topglass® GC brings additional benefits with general purpose grade Special Applications
to building designers and owners. translucent roofing products;
• Topglass® GC can be pigmented
Topglass® GC can also be supplied in
• Harmful Ultra Violet Rays remain a to meet varying light and solar
solid colours providing an excellent
major concern for today’s building transmission requirements;
alternative to metal roofing and cladding
designers. Topglass® GC can be
systems in corrosive environments (see • Heavy duty solid colour-fast roofing
supplied in a variety of pigments and
Topclad page 8). and cladding can be supplied
can be supplied as Topglass® GC
to replace traditional roofing
SPF. This innovative Gel-Coat additive
and cladding products for use
provides excellent UVA and UVB
Key Benefits block and offers exceptional heat and
where corrosion exists. These are
manufactured as Topclad GC (refer
• Manufactured from an acrylic light data (refer page 7).
page 8).
modified polyester resin system and
130 MICRON* EXO-SET
incorporating additional ultra violet GEL-COAT WEATHER
stabilisers, Topglass® GC utilises UV STABILISED
NON-DELAMINATING
SURFACE
antistatic high quality glass fibre CARRIER FILM
rovings to give maximum strength
during the curing and bonding Surface Coatings
process; The Alsynite 130 micron* EXO-SET 206
• The ultimate benefit of the Topglass® Premium Gelcoat weather surface used
GC product over general purpose in the manufacture of Topglass® GC
* Nominal Thickness 130 Micron. gives very good protection against solar
6 www.alsynite.co.nz
deterioration. The reverse side of the
sheeting is protected with a 20 micron
Visible Light and Solar Transmission
UV stabilised Polyester film. Where Weight Clear Orchid Opal Cool
corrosive atmospheres exist which affect Light Solar Light Solar Light Solar Light Solar
the underside of the sheeting, Alsynite
2
NZ Proprietary high sheen corrosive 1800g/m (1.1mm) 84% 75% 78% 69% 70% 52% n/a n/a
resistant surface can be supplied in 2400g/m2 (1.5mm) 74% 65% 65% 60% 58% 49% 33% 22%
place of the film. 2
3660g/m (2.5mm) 62% 58% 60% 56% 47% 40% n/a n/a
Light and Solar transmission information is issued as a guide only and based on interpretation of natural
exposure testing. Full test information is available from Alsynite NZ Ltd. Topglass® Solar, Optical and Ultra
Colours and Tints Violet Transmission information is contained in the Alsynite NZ Technical Catalogue see www.alsynite.co.nz
Topglass® GC is available in standard
colours of Clear, Orchid, Opal and Cool. Safety sheeting as manufactured by Alsynite
Other colours to suit specific design NZ Ltd to comply with AS 4256.3: 2006
To comply with the requirements of AS
criteria are available on request. MOQ JAS-ANZ Certification Licence No.
1562.3: 2006 Part 3 Plastic, translucent
may apply for non-standard colours. 2349. The sheeting shall be measured
roofing products are classified as “Brittle
in g/m² or mm (sheet thickness) and
Roofing” and therefore not suitable to
manufactured to conform to the
support foot traffic. With exception of
nominated roofing and cladding profile
Noise Reducing Sheeting Topglass® GC Ultra-Safe (see page 12.)
(refer to Technical Information, page
Topglass® GC can be supplied as an Safety mesh should be installed under all
24). Installation shall be carried out in
effective noise reducing sheeting. See: translucent roofing.
accordance with the requirements of
Topglass® Twin Skin Systems and Triple AS 1562.3: 2006, Topglass® technical
Skin Systems (page 18-20). literature and Alsynite NZ Technical
Severe Corrosion Catalogue.
Environments C WAT
sG ER
las P
EN
g
Operating Temperature
Top
ET
In areas where corrosion is severe 25
RAT
ION
WARRANTY
LIGHT & S
The operating temperature of Topglass® Topglass® GC can be manufactured 20
OLA
GC is -30°C to + 70°C. using a special purpose Vinyl Ester TR
R
AN
SMIS
SION
corrosion-resistant resin system. Topglass® GC is supported
by a comprehensive 25 year warranty
Fire Retardant and a 20 year visible light and solar
Topglass® GC can be supplied as fire Specification transmission warranty. For written
retardant sheeting. See Topglass® FR 50 The Translucent roofing shall be project warranties, contact
Plus Page 16. Topglass® GC reinforced Polyester roof Alsynite NZ Ltd.
TOPGLASS® TRANSLUCENT ROOFING 7
Heavy Duty, Corrosion Resistant, Solid-Coloured Roofing and Cladding System
Introduction • Advanced technology associated Special Applications
In some highly corrosive industrial sites with the Alsynite NZ Gel-coat
manufacturing process allows Where corrosion may be of concern to
and areas of high salt contamination, the underside of the roofing and cladding
high build paint coatings on roofing and different solid colour pigmentation to
be applied to each side of the sheet, system, an Alsynite NZ Proprietary high
cladding substrates such as aluminium polished corrosion resistant surface can
and steel may not perform as expected. particularly important where the
underside of the sheet is not covered be applied to the underside of the sheet.
To address these concerns, Alsynite At additional cost, Vinyl Ester Resin can
New Zealand manufactures unique by a membrane;
be incorporated for maximum protection.
solid-coloured heavy duty roofing and • Available to match a wide range of
cladding material utilising advanced roof profiles including flat sheet;
GRP technology to formulate a corrosive • Lightweight cladding for easy
resistant cladding system for use as an Weight/Thickness of Sheeting
handling and installation;
innovative replacement for traditional The standard weight for Topclad™ GC is
• Reduces solar heat transmission;
materials. 2800g/m2 (1.9mm). Other weights up to
• Manufactured to any length.
3660g/m2 (2.5mm) are available subject
• Lower freight costs to minimum order.
Key Benefits
• The surface coatings and substrate
used in the manufacture of Topclad™ Applications
GC have been designed specifically to • Wool scouring plants;
withstand corrosive atmospheres. The
• Fertiliser buildings;
added benefit provided by Topclad™
• Poultry and animal sheds;
Surface Coatings
GC, is the highly polished corrosive
resistant surface on the underside of • Acid plants and smelters; The Alsynite 130 micron* EXO-SET
the sheet. • Galvanising plants; 206 Premium Gelcoat weather surface
• Effluent tank cladding; used in the manufacture of Topclad®
• Topclad™ GC is solid-coloured to GC Offers superior sheet clarity and
• Extreme marine environments;
match modern roof colours (Subject unsurpassed long-term resistance
• Buildings in geothermal areas;
to pigment availability) this is achieved against UV degradation.
by applying an Alsynite 130 micron* • Compost plants;
EXO-SET 206 Gelcoat layer to the • Tanneries;
GRP sheeting substrate. • Abattoirs
8 www.alsynite.co.nz * Nominal Thickness 130 Micron.
Thermal Expansion
2.2 x 10.5 cm / cm °C E.g. 7m long sheet
with a 40°C temperature change = 2.2 x
10.5 x (10 x 100) x 7 x 40 = 6.16mm per
7m length at 40°C temperature rise.
Chemical Resistance
• Topclad™ GC has no known chemical
reaction with any construction
materials;
• The sheeting is resistant to solar
deterioration and most corrosive
atmospheres;
• Unaffected by solvents, including
hydrocarbons, and provides excellent
resistance to most corrosive acids
and alkalis.
Specification
The Translucent roofing shall be
Topclad™ GC reinforced Polyester roof
sheeting as manufactured by Alsynite
NZ Ltd to comply with AS 4256.3: 2006
JAS-ANZ Certification Licence No. 2349.
The sheeting shall be measured in
g/m² or mm (sheet thickness) and
manufactured to conform to the
nominated roofing and cladding profile
(refer to Technical Information, page
24). Installation shall be carried out in
accordance with the requirements of
AS 1562.3: 2006, Topglass® technical
literature and Alsynite NZ Technical
Catalogue.
Colours Fire Retardant
Topclad™ GC provides excellent Topclad™ GC can be supplied as fire
opportunity to replicate the colours retardant sheeting. See Topglass FR 50 Flashings
normally associated with pre-painted Plus Page 16.
metal roofing and cladding products. For flashings information contact Alsynite
Topclad™ Standard colour range is, NZ Ltd.
Titania, Grey Friars, Silver, Mist Green, Moisture
and Sandstone Grey. Other colours to
suit specific design criteria are available Where Topclad™ GC will be in Product Handling
on request. All Topclad™ GC Products continuous contact with moisture,
are subject to minimum order quantities. Alsynite NZ Ltd Technical department Care must be taken when handling and
should be contacted prior to ordering. installing the product to avoid stress
damage and/or scratching of the surface.
Operating Temperature
Safety
WAT
GC ER
lad P
Topclad™ GC will not become brittle
EN
c
Top
ET R
25
ATION
with age and will not soften or crack To comply with the requirements of AS WARRANTY 20
LIGHT
within the designed temperature 1562.3: 2006 Part 3 Plastic, translucent
TR
SM
AN
operating range of -30°C to +70°C. roofing products are classified as “Brittle
ISS
ION
Topclad™ GC is supported
Roofing” and therefore not suitable to by a comprehensive 25 year warranty
support foot traffic. With exception of and a 20 year light transmission
Topglass®/Topclad™ GC Ultra-Safe warranty. For written project
(see page 10.) Safety mesh should be warranties, contact Alsynite NZ Ltd.
installed under all translucent roofing.
TOPGLASS® TRANSLUCENT ROOFING 9
Solar Protective Gel-coated Natural Roof Lighting
Bidvest NZ Ltd with Alsynite AITV 900 Ventilators
• Reduces energy and air-conditioning Applications
costs along with the need for
additional artificial lighting. • Food manufacturing buildings;
Introduction • Warehouses and retail outlets storing
• Virtually eliminates harmful UVA and food and fresh produce;
A revolutionary and innovative Gel-
UVB ultra violet rays from entering a
Coated natural lighting product • Shopping centres and supermarkets;
building.
developed using Alsynite NZ Technology • Bulk paper stores;
and aptly named Topglass SPF - Solar • The sheet is aesthetically unique,
providing innovative design • Temperature-sensitive environments
Protection Feature. Encompassing a
characteristics for building designers. requiring high quality long-term
unique manufacturing process similar to
natural lighting.
that used in the design and manufacture
• Long term effective light transmission.
of modern sunglass eyewear, Topglass®
SPF Solar control roof lighting, selects • Excellent project warranties.
and singles out Infra-Red (heat) plus
harmful Ultraviolet rays, thereby • Topglass® SPF is JAS-ANZ certified to
preventing heat build-up and UV damage AS 4256:3.2006 Licence No. 2349. Weather Surface Coating
to Stock and Plant. Alsynite 130 micron* EXO-SET 206
Premium Gelcoat weather surface.
Key Benefits Product Variations
• Provides maximum visible light Product Visible Light Transmission Total Solar Transmission
transmission whilst preventing Topglass SPF 4 64% 50%
unwanted solar transmission into a
building. Topglass SPF 8 49% 36%
10 www.alsynite.co.nz * Nominal Thickness 130 Micron.BIDVEST NZ LTD
Operating Temperature
The operating temperature of Topglass® Weight/Thickness of Sheeting applications. Measurement and
GC SPF is -30ºC to +70ºC. Calculation of Twin Skin Solar Optical
Topglass® GC SPF Products are
manufactured in varying sheet thickness Properties, 6 March 2008. Vipac
as follows: Roof profiles: 1800g/m2 Engineers and Scientists Ltd, Melbourne
Safety Vic. This information is available on
(1.1mm) to 3660g/m2 (2.5mm) Flat sheet:
To comply with the requirements of AS 1800g/m2 (1.1mm) – 4000g/ m2 (2.7mm) request.
1562.3: 2006 Part 3 Plastic, translucent
Full Vipac Mechanical test reports
roofing products are classified as “Brittle
pertaining to Topglass 2400 gsm and
Roofing” and therefore not suitable to Specification Topglass GC Ultrasafe series, August
support foot traffic. With the exception of
The translucent roofing shall be Topglass® 2014 available on request
Topglass® GC Ultra-Safe (see page 12.)
GC SPF 4 and SPF 8 gel-coated natural
Safety mesh should be installed under all To comply with the requirements of AS
roof lighting system, JAS-ANZ Certified
translucent roofing. 1562.3: 2006 Part 3 Plastic, translucent
and as manufactured by Alsynite NZ
Ltd to comply with AS 4256:3.2006, roofing products are classified as “Brittle
Licence No. 2349. The sheeting shall Roofing” and therefore not suitable to
Roof Profiles support foot traffic. With exception of
be measured in g/m² or mm (sheet
Topglass® GC SPF 4 and Topglass® GC thickness) and manufactured to conform Topglass®/Topclad™ GC Ultra-Safe
SPF 8 are manufactured to match all to the nominated roofing and cladding (see page 10.) Safety mesh should be
commonly available roofing and cladding profile (refer to Technical Information, installed under all translucent roofing.
profiles, including flat sheet. page 24). Installation shall be carried out
in accordance with the requirements of
SPF WAT
AS 1562.3: 2006, Topglass® technical GC ER
ss P
Severe Corrosive Environments
EN
la
ET
literature and Alsynite NZ Technical
Topg
25
RAT
WARRANTY
ION
In areas where corrosion is severe, Catalogue. 20
LIGHT
Topglass® GC SPF can be manufactured
TR
NS
A
MI
SSIO
incorporating special purpose Vinyl- Topglass® GC SPF is N
Ester Resin. Where internal corrosion Test Reports supported by a comprehensive
exists such as indoor swimming pools, a 25 year warranty and a 20 year light
Full Vipac test reports are available
proprietary corrosion resistant and high transmission warranty.
on Topglass® GC SPF 4 and SPF 8
polished reverse side surface can be For written project warranties,
for Single-Skin and Twin-Skin System contact Alsynite NZ Ltd.
supplied.
TOPGLASS® TRANSLUCENT ROOFING 11High Impact, Corrosion Resistant Glass Reinforced Roofing and Cladding
FRUCOR BEVERAGES LTD DISTRIBUTION CENTRE, MANUKAU
Introduction • Topglass® GC Ultra-Safe meets the Applications
Industry concerns relating to Natural impact strength tests of AS/NZS • Educational facilities and Public
Roof-Lighting being classified as 4040.4 and satisfies the requirements Assembly areas where there is a
“brittle” and therefore possibly posing of AS 4256.3 alleviating the need for danger of persons climbing onto a
a danger to foot traffic on the roof, has safety mesh to be installed under the roof.
led to Alsynite NZ purpose develop a sheeting (refer to Safety) This is of
particular benefit to building designers • Fertiliser Plants
heavy duty and high impact roof lighting
who face corrosive atmospheres • Chemical and Powder-coating Plants
system to alleviate these concerns.
Aptly named Topglass® GC Ultra-Safe, damaging the safety mesh zinc • Wool scouring facilities
the product utilises a heavy duty, woven coating.
• Waste water treatment plants
roving reinforcing system positioned • As the roving matrix runs both • Salt Extraction Facilities
within the resin matrix, thereby providing longitudinally and laterally within
exceptional strength. Further, the • Severe marine environments
the sheet, Topglass® GC Ultra-Safe
innovative fastening system jointly demonstrates exceptional high impact • Natural roof lighting where safety
developed by Alsynite NZ Ltd and the strength. mesh is not installed
Company’s fastening supplier provides • Wood Pulp and Paper Plants
maximum security to any foot traffic • Alsynite 130 micron* EXO-SET 206
across the roof once installed whether Premium Gelcoat weather surface
this is day, night or in times of restricted provides long term light transmission Special Applications
visibility. and is supported by a 20 year
• In very severe corrosive environments
weather surface structured warranty.
the Topglass® GC Ultra-Safe resin
• Corrosion resistant when installed system can be fortified using Vinyl
Key Benefits in wide range of aggressive Ester to provide maximum protection.
environments. • Topglass® GC Ultra-Safe can be
• Topglass® GC Ultra-Safe is
manufactured utilising heavy duty • Excellent spanning capabilities. supplied as a heavy duty solid
woven roving enclosed within the coloured roofing and cladding
• Topglass® GC Ultra-Safe meets the material to replace metal roofing
resin matrix which in turn provides
impact strength tests of AS 4256.3 products for use in corrosive
a structural capability not normally
clause 11.3, AS 4040.1, and AS 1562 environments. (See also Topclad™
available with traditional translucent
alleviating the need for safety mesh, GC Page 8)
roofing materials.
rather than just a roof lighting product.
12 www.alsynite.co.nz * Nominal Thickness 130 Micron.TUI GARDEN PRODUCTS, TAURANGA
Light and Solar Transmission
Tint Visible Light Transmission Solar Transmission
Weather Surface Coating Clear 61% 56%
Alsynite 130 micron* EXO-SET 206 Opal 58% 49%
Premium Gelcoat weather surface
used in the manufacture of Topglass®
GC Ultrasafe Offers superior sheet Safety Specification
clarity and unsurpassed long-term UV Whilst Topglass® GC Ultra-Safe is The translucent sheeting and/or roofing
resistance against premature yellowing. classified as heavy duty, meets the and cladding shall be Topglass® GC
impact test of AS 4040.4, satisfying Ultra-Safe as manufactured by Alsynite
the requirements of AS 4256.3, and NZ Ltd to comply with AS 4256.3 JAS-
Weight/Thickness of Sheeting can support foot traffic, long term ANZ Certification Licence No 2349. The
Topglass® GC Ultra-Safe is supplied as degradation and or post roof installation sheeting shall conform to the nominated
standard weight of 3660g/m2. impact damage can seriously affect roofing and cladding profile and installed
the performance of the sheeting. In in accordance with the requirements of
order to comply with the requirements the Alsynite Topglass® GC Ultra-Safe
Colours of AS 1562.3:2006 Part 3 Plastic, proprietary safety fixing system.
The standard colours of Topglass® GC protect the weather surface coating and
Ultra-Safe are translucent Clear and provide continual structural strength,
Opal. Other pigments are available all FRP products should be protected CU
ltra-Safe WATER
ss G
PE
from foot traffic, therefore a suitable
NE
20
Topgla
subject to minimum order quantity.
TR A
WARRANTY
TION
proprietary aluminium walkway is always 10
LIGHT
recommended. Consult Alsynite NZ Ltd
TR
NS
A
MI
SSIO
Profiles for recommended systems. Topglass® GC Ultra-Safe is
N
supported with a 20 Year
Topglass® GC Ultra-Safe is available to
weather surface structured warranty
match most common roofing profiles.
and a 10 year structured loss of light
transmission warranty.
Spanning Full warranty conditions and written
project warranties are available from
Refer Load Span Capabilities: Technical Alsynite NZ.
Information page 24.
* Nominal Thickness 130 Micron. TOPGLASS® TRANSLUCENT ROOFING 13High Impact, Corrosion Resistant Glass Reinforced Roofing and Cladding
Introduction • The surface coatings and substrate Applications
A Hybrid product derived from Topglass® used in the manufacture of Topclad®
GC Ultrasafe have been designed • Areas where there is a danger of
GC Ultrasafe with the additional feature persons climbing onto a roof
of Solid Colours used to manufacture specifically to withstand corrosive
atmospheres while the woven roving • Fertiliser Plants
Topclad® GC. • Chemical and Powder-coating Plants
provides a structural capability that
Topclad® GC Ultrasafe can be installed alleviates the need for safety netting • Wool scouring facilities
in most highly corrosive industrial sites under the product. • Waste water treatment plants
and areas where there is a danger to foot • Salt Extraction Facilities
traffic on the roof. Due to these concerns • Topclad® GC Ultra-Safe meets the • Severe marine environments
Alsynite NZ developed the heavy duty, impact strength tests of AS/NZS • Wood Pulp and Paper Plants
high impact roof system to alleviate 4040.4 and satisfies the requirements • Fertiliser buildings
concerns of walking on Fibreglass of AS 4256.3. • Poultry and animal sheds
structured roofing. • Acid plants and smelters
• Topclad® GC Ultrasafe is solid-
Topclad® GC Ultra-Safe utilises the same • Galvanising plants
coloured to match modern roof
heavy duty, woven roving reinforcing • Effluent tank cladding
colours (Subject to pigment
system as Topglass® GC Ultrasafe availability)
with the additional features of a solid
colour pigment added to the Gel-Coat • Advanced technology associated
layer to formulate a corrosive resistant with the Alsynite 130 micron* EXO-
cladding system for use as an innovative SET 206 Gelcoat weather surface
replacement for traditional materials. manufacturing process allows Weather Surface Coating
different solid colour pigmentation to Alsynite 130 micron* EXO-SET 206
be applied to each side of the sheet, Gelcoat weather surface used in the
particularly important where the manufacture of Topclad® GC Ultrasafe
Key Benefits underside of the sheet is not covered Offers superior sheet clarity and
• Topclad® GC Ultra-Safe is by a membrane. unsurpassed long-term resistance
manufactured utilising the same against UV degradation.
heavy duty woven roving enclosed
within the resin matrix as Topglass®
GC Ultrasafe.
14 www.alsynite.co.nz * Nominal Thickness 130 Micron.Operating Temperature • The sheeting is resistant to solar 5 Specific Gravity ASTM D792-08
Topclad® GC Ultrasafe will not become deterioration and most corrosive 6 Tensile Strength ISO 527-1 & ISO 527-2
brittle with age and will not soften or atmospheres;
7 Coefficient of Linear Expansion ASTM
crack within the designed temperature • Unaffected by solvents, including D696-98
operating range of -30°C to +70°C. hydrocarbons, and provides
excellent resistance to most 8 Thermal Conductivity C518-10
corrosive acids and alkalis.
Safety
Topclad® GC Ultra-Safe is classified as Weight/Thickness of
heavy duty, meets the impact test of AS
4040.4, satisfying the requirements of Sheeting
AS 4256.3, and can support foot traffic, Topclad® GC Ultra-Safe is supplied as
long term degradation and or post roof standard weight of 3660g/m2.
installation impact damage can seriously
affect the performance of the sheeting.
In order to comply with the requirements Specification
of AS 1562.3:2006 Part 3 Plastic, The translucent sheeting and/or
protect the weather surface coating and roofing and cladding shall be Topclad®
provide continual structural strength, GC Ultrasafe reinforced Polyester roof
all FRP products should be protected sheeting as manufactured by Alsynite
from foot traffic, therefore a suitable NZ Ltd to comply with AS 4256.3 JAS-
proprietary aluminium walkway is always ANZ Certification Licence No 2349.
recommended. Consult Alsynite NZ Ltd The sheeting shall conform to the
for recommended systems. nominated roofing and cladding profile
and installed in accordance with the
requirements of the Alsynite Topclad®
Roof Profiles GC Ultra-Safe proprietary safety fixing ss
GC
SPF WAT
ER
P
system.
EN
la
Topclad GC Ultra-Safe is available to
®
ET
Topg
25
RAT
WARRANTY
ION
match most common roofing profiles with 20
LIGHT
the exception of Trough/Tray type profiles.
TR
NS
Test Reports
A
MI
SSIO
N
Topclad® GC Ultra Safe is
1 Impact Resistance AS/NZS supported by a comprehensive 25
Severe Corrosive Environments 4257.6:1994 year warranty and a 20 year light
• Topclad® GC Ultrasafe has no transmission warranty. For written
2 Shear Strength ASTM D732-10
known chemical reaction with any project warranties, contact Alsynite
3 Compressive Strength ISO 604-2003 NZ Ltd.
construction materials;
4 Flexural Strength ASTM D790-10
TOPGLASS® TRANSLUCENT ROOFING 15FR60
Fire Retardant Translucent Roofing NZBC GROUP3 NZBC GROUP2
Colours
The standard colour of Topglass® FR50
is yellow/clear. Opal pigment can be
incorporated where specific heat and light
transmission is required.
Safety
To comply with the requirements of AS
1562.3: 2006 Part 3 Plastic, translucent
roofing products are classified as “Brittle
Roofing” and therefore not suitable to
support foot traffic. With exception of
Topglass® GC Ultra-Safe (see page 12).
Safety mesh should be installed under all
translucent roofing.
Specification
The Translucent roofing shall be Topglass®
FR50 reinforced Polyester roof sheeting
as manufactured by Alsynite NZ Ltd
to comply with AS 4256.3: 2006 JAS-
ANZ Certification Licence No. 2349.The
sheeting shall be measured in g/m² or
mm (sheet thickness) and manufactured
to conform to the nominated roofing
and cladding profile (refer to Technical
Information, page 24). Installation shall
be carried out in accordance with the
requirements of AS 1562.3: 2006,
Introduction Applications Topglass® technical literature and Alsynite
NZ Technical Catalogue.
Topglass FR50 is designed and supplied
® • Schools and educational institutions;
as a fire and smoke retardant natural • Public assembly areas; Profiles
lighting system for use in commercial • Combustible areas with high fire risk;
and industrial buildings. This type of Topglass® FR50 is available ex stock in a
• Where egress from a building in the limited number of roofing profiles.
resin system alters the flammability point
event of fire may be restrictive. For further information, contact Alsynite
of the sheeting; however it should be
noted Alsynite supplies all GRP sheeting NZ Ltd.
in this brochure as natural lighting/ Special Applications
cladding products only. BRANZ test report FH 4937 October Test Reports
2012 contained in this literature refers BRANZ test report Topglass FR50
Please refer Page 3 Venting of Fire, for
to Topglass® FR50. Contact Alsynite NZ FH 4937 October 2012
alternative mechanical smoke and heat
Ltd for advice on more advanced fire and NZBC Group number 3
venting systems.
smoke retardant resin systems.
BRANZ test report Topglass FR60
FI 5428-TT February 2013
Key Benefits NZBC Group number 2
• Topglass® FR50 is glass reinforced
polyester fire retardant sheeting that Surface Coatings BRANZ Test Report Alsynite Industrial
has been specifically formulated using Topglass® FR50 and Topglass® FR60 Polycarbonate FR [ 1-S ] Premium Grade
fire retardant materials for use in are now both supplied with the Alsynite FI 5603-TT
commercial building applications and 130 micron* Exo-Set 206 SPF enhanced November 2014
educational institutions. Gelcoat system. Both products are NZBC Group number 1-S
• Topglass® FR50 is glass reinforced supplied as translucent roofing products 50 P
lus WAT
ER
polyester fire retardant sheeting and are now available offering increased FR P
EN
s
las
ET R
25
solar values as can be experienced with
Topg
that can be considered into building
ATION
designs that specifically require Topglass® GC SPF4 (see Topglass® SPF WARRANTY 20
LIGHT
pg 10) the SPF enhancement stabilises
TR
reduced ignitability, flame propagation
SM
AN
ISS
ION
the products appearance offering Topglass® FR50 is supported by
and heat and smoke release over
increased weather surface stability a comprehensive 25 year warranty and a
conventional resin systems.
in colour retention than previously 20 year light transmission warranty.
For written project warranties, contact
experienced.
Alsynite NZ Ltd.
16 www.alsynite.co.nz * Nominal Thickness 130 Micron.Fire Retardant Translucent Roofing
Introduction Applications Test Reports
Topglass FR25 is a fire resistant roofing
®
• Cooling Towers RJ2033-1
and cladding product with a flame August 2012
spread ofHeat Reducing Translucent Roofing
AVANTIDROME, CAMBRIDGE
Introduction Applications Colours and Tints
Where potential condensation issues Commercial, industrial, institutional Alsynite Twin Skin Systems typically are
are of concern, Alsynite manufacture a sports stadiums and other projects supplied with a low pigment additive
Twin-Skin System that offers a solution where long term high quality natural in the top sheet (Orchid) and a clear
to this problem. Two independently lighting is required. support under sheet.
formed sheets of Topglass® are laid This configuration offers the building
over each other to form an effective air interior a soft passive environment
gap between the sheets. Condensation Special Applications without direct sunlight penetration.
evaporates and this prevents water Alsynite Twin Skin System can be However any combination of
droplets entering the building. Alsynite supplied to meet varying light and solar pigment colours is readily available,
Twin Skin Systems also offers building transmission requirements to meet any consult Alsynite for pigment level
occupants a reduced noise level from design criteria. recommendations.
outside influences, as the system offers
an effective acoustical reducing solution.
Heat Reducing Sheeting
As an added barrier against solar heat
Key Benefits build-up Twin Skin Systems can include
• Manufactured from an acrylic Surface Coatings SPF 4 and SPF 8 formulations.
modified resin system, reinforced with Topglass® GC is the preferred choice
high quality glass fibre rovings. for Twin Skin Systems for the external
• Reduces internal heat build-up and weather surface. Alsynite 130 micron* Operating Temperature
offers a passive natural lighting EXO-SET 206 Gelcoat weather surface Alsynite Twin Skin Systems operating
concept. offers very good protection against temperature is -30oC to +70Oc
• Effective noise reducing system. solar deterioration. A 20 micron film can
be applied to the reverse side of the
• Eliminates condensation in most Fire Retardant
laminate or where corrosive atmospheres
applications.
exist which may affect the underside of Alsynite Twin Skin Systems operating
• Manufactured and supplied to side- the sheeting. Alsynite proprietary high temperature is -30oC to +70ocsupplied
lap most current popular steel roofing level corrosive resistant protective sheen as Topglass GC FR 50 Plus (refer to page
profiles. can be supplied. 16).
• Manufactured and supplied in one Alsynite Twin Skin Systems can be
length as a complete system, ridge- supplied as Topglass® FR 50 Plus (refer
to-gutter or ridge-to-step if a stepped to page 16).
roof.
18 www.alsynite.co.nz * Nominal Thickness 130 Micron.Test Reports
Test reports have been carried out on
Twin Skin products for testing their
acoustical and solar optical properties as
listed below:
1. Laboratory Measurement of Airborne
Sound Insulation of TS20 Twin Skin
Roofing System, Auckland UniServices
Limited, 3 December 2008. According
TWIN SKIN SYSTEMS to ISO 140-3.
TWIN SKIN SYSTEM 2. Measurement and Calculation of
Topglass® GC 0.95g Loadspreading washer and
TS20 Solar Optical Properties,
Translucent Roofing 36mm EPDM underseal washer Metal roofing Vipac Engineers & Scientists Ltd,
Mel¬bourne, VIC, 6 March 2008.
3. Measurement and Calculation of Twin
Skin Solar Optical Properties, Vipac
Engineers & Scientists Ltd, Melbourne,
VIC, 20 June 2007.
This information is available upon
request.
20mm sealed thermal Safety mesh Topglass® Foil or whiteBuilding insulation blanket A copy of the test report is available
space Translucent Roofing paper insulation
NOTE: upon request from Alsynite NZ.
• Gutter end sealed with purpose made Alsynite closed cell foam strip
• Twinskin clear roofing at 2400g/m2 (1.5mm thick) provides light transmission of 70% SPF WAT
GC ER
ss P
EN
la
ET
Topg
25
RAT
WARRANTY
ION
Safety Insulated Translucent Roofing systems 20
LIGHT
can be manufactured to meet building
To comply with the requirements of AS
TR
NS
A
MI
fire standard groups 3, 2 and 1-S
SSIO
N
1562.3:2006 Part 3 Plastic, translucent Alsynite Twin Skin Systems are
classifications. Test report available from supported by a comprehensive 25
roofing products are classified as brittle
Alsynite. year warranty and a 20 year light
roofing and therefore not suitable to
Installation shall be carried out in transmission warranty. For written
support foot traffic – with the exception
accordance with the requirements of AS project warranties, contact Alsynite
of Topglass® GC Ultra-safe (refer to
1562.3:2006 Topglass® technical literature NZ Ltd.
page 12). Note that safety mesh should
be installed under all translucent roofing. and the Alsynite NZ technical catalogue.
ALSYNITE TWIN SKIN ROOFING SYSTEM
Severe Corrosion - PROFILE EXPLODED
Environments
In areas where corrosion is severe Twin
Skin Systems can be supplied with a
vinyl ester resin system.
Specification
The translucent Twin Skin System shall
be Alsynite reinforced polyester roof
sheeting manufactured by Alsynite to
comply with AS4256.3:2006 JAZ-ANZ
certification licence number 2349. The
sheeting shall be measured in g/m² or
mm (sheet thickness) and manufactured
to conform to the nominated roofing
and cladding profile (refer to Technical
Information, page 24).
TOPGLASS® TRANSLUCENT ROOFING 19Translucent Roofing
DESIGNED TO SUIT
INSULATED PANEL SYSTEMS
Surface Coatings provide continual structural strength,
Introduction all GRP products should be protected
Topglass Triple-Skin Systems are
® Topglass GC is the preferred choice
®
from foot traffic, therefore a suitable
primarily designed as a suitable fully for Triple-Skin Systems for the external
proprietary aluminium walkway is always
insulated natural lighting roofing product. weather surface. Alsynite 130 micron*
recommended.
Topglass® GC Ultra-Safe is utilised as a EXO-SET 206 Gelcoat weather surface
weather surface sheet and one sheet of offers very good protection from solar Consult Alsynite NZ Ltd for
10mm Laserlite Makrolon Multiwall form deterioration. Triple-Skin Systems recommended systems.
the bottom layers. Offering increased can be supplied in most weights g/
thermal and acoustical properties these m² but Topglass® GC Ultra-Safe is
systems are utilised in conjunction with recommended for this system. Specification
insulated panel products.
The translucent sheeting shall be
Topglass® GC Ultra-Safe, Triple-Skin
Colours and Tints System 3660 g/m² (unless specified
Key Benefits Triple-Skin Systems can be supplied in a otherwise) manufactured to comply with
• Manufactured from an acrylic variety of tints but generally is supplied AS 4256.3 JAZ-ANZ certification licence
modified resin system reinforced with as translucent clear. no. 2349.
high quality glass rovings, with the The sheeting shall conform with the
incorporation of a reinforced woven nominated roofing and cladding profile
roving matrix and Laserlite Makrolon and be installed in accordance with the
Multiwall. Operating Temperature requirements of the Alsynite Topglass®
• Increased thermal resistance and Triple-Skin Systems operating Ultra-Safe proprietary safety fixing
increased acoustical properties. temperature is -30ºc to + 70ºc system. Refer Page 12 - Key Benefits
• Eliminates condensation in most (Topglass® GC Ultra-Safe).
applications.
• Manufactured and supplied to match Safety GC
SPF WAT
ER
insulated panel systems. Topglass® Triple-Skin Systems supplied
ss P
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ET
Topg
25
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as Topglass® GC Ultra-Safe is classified WARRANTY
ION
20
as heavy duty , meets the impact test of
LIGHT
TR
NS
Applications AS 4040, satisfying the requirements of
A
MI
SSIO
Topglass® GC Ultra-Safe, N
AS 4256.3 and can support foot traffic, Triple-Skin Systems are supported
Compliments commercial buildings
long term degradation and or post roof with a 25 year weather surface
that require insulated roofing panel
installation impact damage can seriously warranty and a 20 year structured
construction, and provides natural
affect the performance of the sheeting. loss of light transmission warranty.
lighting with the added benefit of offering
In order to comply with the requirements Full warranty conditions and written
good thermal resistance.
of AS 1562.3 2006 part 3 plastic, project warranties are available from
Alsynite NZ.
protect the weather surface coating and
20 www.alsynite.co.nz * Nominal Thickness 130 Micron.Installation Instructions
GRP Sheeting
Product Handling and requirements. Contact Alsynite NZ • Where two translucent roof sheets
Storage Instructions for All Ltd for specific design advice or refer are laid side by side, the mid span
Load Span Capability Chart - Page support shall extend under the metal
Products 24.
• Store sheeting in a dry location and • Ensure that the correct weathering
protect from possible wind damage Method 1
surface of the sheeting is uppermost
prior to installation. as the durability and any warranty is
• Sheeting should not be dragged dependent on placing the sheet the
across objects or other products as correct side up.
it may affect the performance and • Where two translucent roof sheets
aesthetics of the roof sheet. are laid side by side, the mid span
• Care should be taken when loading support shall extend under the metal ROOF PITCH
3 DEGREES
the translucent roofing onto the roof roofing sheet by a minimum 400mm TO 15 DEGREES
to avoid bending or distortion of the with fastening through at least two
sheet. ribs of the metal roofing on either side
roofing sheet by a minimum 400mm
• Sheeting that becomes wet in bundles of the GRP sheet.
with fastening through at least two
and is required to be stored should be ribs of the metal roofing on either side
separated and dried prior to storage. of the GRP sheet.
. Figure 2 • Mid span supports shall not be used
Recommended Installation where more than two translucent
sheets are adjacent to one another.
Guidelines
• If more than two sheets of Topglass®
• Sheeting may be cut using an Roofing products are to be used side
abrasive disc or fine tooth saw (use by side, contact Alsynite NZ Ltd for
protection gloves and approved face specific guidelines.
mask).
• GRP Translucent roofing is not
Method 2
designed to support foot traffic and
unless specifically excluded in AS MID SPAN SUPPORTS
OVER METAL SHEETS
1562.3:2006, clause 2.4.3 requires
the use of safety mesh under all • Mid span supports shall not be used
translucent roof sheeting. Refer to where more than two translucent
Figure 5. sheets are adjacent to one another. ROOF
• Alsynite NZ Purlin barrier strip must • If more than two sheets of Topglass® PITCH ABOVE 15
be installed between the translucent Roofing products are to be used side
DEGREES
roof sheeting and the safety mesh at by side, contact Alsynite NZ Ltd for
the purlin line. Refer to Figure 5. specific guidelines. • Where roof installations require
• Ensure the purlins are correctly Topglass® or Topclad™ to be laid
• Where roof installations require
spaced and that they are in line. side-by-side, it is recommended
Topglass® or Topclad™ to be laid
that the use of Lap Seal Tape be
• GRP fibreglass roofing should always side-by-side, it is recommended
implemented in these situations,
be installed over the main roof that the use of Lap Seal Tape be
therefore preventing possible water
cladding at both lapping edges. Refer implemented in these situations,
ingress over the laps.
to Figure 1 therefore preventing possible water
• Ensure the weight/thickness of the ingress over the laps.
sheet combined with the selected Stop Ends
roofing profile will meet the spanning Install stop ends to the top of the
translucent sheeting as follows.
Figure 1 Use a right-angled folded flashing to the
ON TOP TRANSLUCENT SHEET ON TOP
full height of the corrugation or rib, fixed
with rivets and sealant.
• Severe conditions: Use 0.9mm
aluminium.
MAIN ROOFING MATERIAL MAIN ROOFING MATERIAL
• Moderate conditions: Use pre-painted
metal.
ON TOP TRANSLUCENT SHEET ON TOP
Note: This can also be used in an
exposed site or high or very high wind
zone for steeper pitched roofs.
MAIN ROOFING MATERIAL MAIN ROOFING MATERIAL Use Alsynite NZ Ltd approved closed
cell profiled foam strip fitted close to the
screw fixing points.
TOPGLASS® TRANSLUCENT ROOFING 21Inserted under the load spreading
End Laps washer will be a 36mm EPDM sealing
• Minimum recommended length of end lap of GRP sheets and/or with metal washer which is to be correctly seated
profile sheeting is 200mm. to provide an effective seal. Fasteners
• Position of lap over purlin - it is recommended the bottom end of the lap sheet should be inserted through the top
be within 50mm of the lower side of the purlin. centre of the rib/corrugation.
• Position of the seal - the bottom bead should be within 25mm from the bottom Other fastener methods such as 32mm
of the top sheet in lap, and the top bead of seal within 50mm of the top of the Weatherlock washers maybe suitable
bottom sheet. based on sheet length and load
characteristics. Alsynite NZ Ltd should
be contacted for further clarification and
TRANSLUCENT SHEET TWO CONTINUOUS ROWS advice.
OF SILICON SEALANT
OR SELF ADHESIVE • All fastener holes should be pre-
25MM X 3MM EPDM
CLOSE CELL FOAM TAPE drilled over-size to accommodate
AT THE END LAP
the expansion and contraction of the
MINIMUM
200mm sheets as follows:
OVERLAP 200mm
PURLIN SUPPORT Sheets up to 6m 8mm Ø hole
AT THE END LAP
Sheets 6m to 9m 10mm Ø hole
Sheets 9m to 12m 12mm Ø hole
MAIN ROOFING SHEET Sheets 12m to 28m 16mm Ø hole
Note: It is important to centre the fixing
in the oversize hole to ensure the sheet
Sealants • When fixing GRP to metal, pre-drill the has equal movement around the fixing.
The use of silicone should be restricted appropriate oversize hole in the GRP
Note: Where wind loads exceed 1.5kPa,
to end laps only as when set the sealant and screw through the centre of the
contact Alsynite NZ Ltd for specific
restricts the ability of the sheet to expand hole into the metal using a self-drilling
design advice. Do not overdrive the
and contract. The use of sealants under hex head screw 12g or 14g complete
fasteners so that deformation of the
side laps is not recommended. In some with load spreading washer and 36mm
sheet occurs.
particular building designs i.e. curved EPDM sealing washer. Refer to Figure
roofing and where the pitch may fall 3.
below the recommended minimum pitch, When fixing GRP to GRP use a bulbtite Fastener Pattern
Alsynite NZ Ltd Lap seal tape can be rivet 6-4w through the top of the rib of • Corrugated profile end supports and
applied to lapping edges. Expansion and the GRP sheets. Refer to Figure 2. end laps: Fix side laps and every 2nd
contraction of dissimilar roofing materials corrugation.
should be taken into prior consideration.
Fastener and Sealing Washer • Corrugated profile internal supports
or purlins: Fix side laps and every 3rd
Figure 3 Recommendations corrugation.
The fastener shall be as for the main roof
LOAD SPREADING NEOPRENE WASHER
WASHER
• 5 rib low trapezoidal profiles (19mm to
cladding and will be used in conjunction
30mm): On all purlins fix every rib.
with a Alsynite NZ Ltd approved load
spreading washer constructed of • High trapezoidal profiles (50mm to
36mm EPDM
SEALING
0.95mm unpainted/pre-painted metal 120mm): On all purlins fix every rib.
WASHER
or 1.2mm aluminium to match the main • 7 to 8 rib medium trapezoidal profiles
OVER SIZE HOLE cladding material. In a highly corrosive (33mm to 49mm) end support and
environment, consideration should be end laps: Fix every rib.
given to the use of stainless steel or • 7 to 8 rib medium trapezoidal profiles
other appropriate corrosive resistant (33mm to 49mm) internal support or
Rainwater Gutters material. purlins: Fix side laps and every 2nd
GRP roof sheeting should not be drained rib.
into unpainted or galvanised gutters. Figure 5 • Deck profiles - fix every rib.
LOAD SPREADING NEOPRENE WASHER
WASHER
Side Lap Fixing Further Technical Assistance
Side laps should be fixed at a maximum The installation instructions are a guide
spacing of 600mm to prevent wind uplift 36mm EPDM
SEALING to assist with installation of translucent
and leakage, and these fixings shall be WASHER
roof sheeting. However these should be
through the top of the rib. read in conjunction with the full technical
information contained in the Alsynite NZ
OVER SIZE HOLE Technical Catalogue. For non-standard
Figure 4 building design such as draped curve
roofs, contact Alsynite NZ Ltd for
5mm ALSYNITE PURLIN BARRIER STRIP (PBS)
technical advice prior to ordering product
SAFETY MESH
or commencing the project.
PURLIN
22 www.alsynite.co.nzYou can also read
