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Topglass®
UV-Stabilised Commercial
Grade Reinforced
Translucent Roofing
Introduction
Over many years a standard
industrial grade, glass
reinforced, polyester sheeting
was the only type of GRP roofing
product available to the New
Zealand market. Although these
types of translucent roofing
products continue to perform
adequately, the industry was
seeking a superior product to
resist New Zealand's harsh ultra
violet climate. Utilising
advances in fibreglass
technology, Alsynite NZ Ltd
worked with the company's raw
material suppliers to develop a
cost efficient product
incorporating both UV-stabilised
polyester weather surface
technology and encompassing a
purpose developed UV-stabilised
core resin system.
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Key Benefits
-
Topglass® is manufactured
from an acrylic modified
resin system, reinforced
with high quality glass
fibre rovings;
-
Technology developed in the
United Kingdom ensures only
the highest quality UV-stabilised
resins and weather surface
protection coating is used
in the manufacturing of the
Topglass® sheeting;
-
Topglass® encompasses
in-built UV inhibitors which
prevent early degradation,
yellowing and embrittlement
of the sheet;
-
The product is oven cured
and profiled to ensure
maximum binding and
strength;
-
The non-porous weather
surface prevents water
absorption and osmosis;
-
Reduced fibre show in
comparison to standard
commercial grade translucent
roofing products;
-
The weather surface retains
its smooth finish for a
greater period of time
providing self cleaning
benefits;
-
An extremely flexible
product providing unique
variation to meet design
criteria;
-
Topglass® is an extremely
cost effective UV resistant
translucent roof sheeting.
-
Harmful Ultra Violet Rays
remain a major concern for
today’s building designers.
Only Topglass Opaque UV
Smart pigment specifically
developed by Alsynite,
provides 100% UVB Block.
This innovative pigment is
also available included in
Topglass Cool.
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Applications
-
Commercial, industrial,
institutional and other
projects where long-term
high quality lighting is
required;
-
School/Kindergarten and
public outdoor areas
requiring excellent UV
protection.
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Special Applications
-
Topglass® can be supplied
encompassing a purpose
developed corrosive
resistant resin for use in
areas of extreme corrosion.
-
All Topglass® products can
be supplied in various twin
skin systems providing
excellent thermal benefits
and energy savings.
-
Topglass® can be supplied
tinted with variations to
reduce light and heat
transmission. This is
recommended due to the long
term clarity of the sheet;
-
Topglass® roofing profiles
can be supplied in reduced
width sheet if so required.
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Surface Coatings
Topglass® weather surface
polyester film incorporates UV
inhibitors and offers protection
against early yellowing and
degradation of the weather
surface of the sheet. If
required for specific
applications and where internal
corrosion is of concern Du Pont
Tedlar®*, with its excellent
protection against corrosive
substances, can be applied to
the underside of the sheeting in
place of the standard 20 micron
polyester film.
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Colors
Topglass® is available in
standard colours of Clear, White
Tint, Opalescent and Opaque UV
Smart. Other colours are
available on request to suit
specific design applications.
Consult Alsynite NZ Ltd as
minimum quantities apply.
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Operating Temperature
The operating temperature range
of Topglass® is - 40º to +110º
C.
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Fire Retardant
Topglass® can be supplied as
fire retardant sheeting.
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Trafficability
Where trafficability is of
concern contact Alsynite for
specific technical support.
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Specification
The Translucent roofing shall be
Topglass® Ice Clear White Tint,
Opalescent and Opaque UV Smart
reinforced Polyester roof
sheeting as manufactured by
Alsynite NZ Ltd to comply with
AS/NZS 4256.3 JAS-ANZ
Certification Licence No 2349
The sheeting shall be
.........g/m2 or .........mm and
manufactured to conform to the
nominated roofing and cladding
profile. Installation shall be
carried out in accordance with
the requirements of AS/NZS
1562.3: 1994, NZ Roofing Code of
Practice and Alsynite NZ Ltd
Technical catalogue.
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Warranty
Topglass® is supported by a
comprehensive 25 year water
penetration warranty and a
separate 15 year light
transmission project warranty.
Refer to the Alsynite Technical
Catalogue for warranty details,
or contact Alsynite NZ Ltd.
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Weathering Performance
Topglass® incorporates UV
inhibitors. Extended UV testing
shows a significant reduction in
UV degradation and yellowing as
shown. Topglass® sheeting will
have a service life of at least
25 years in normal conditions.
*PVC SDS is an exclusive
distributor of Alsynite |
