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| Domestic Grade GCP | |
| Profile | Max. Span |
| Corrugated | 900mm |
| 5 Rib | 1000mm |
The span between battens or supports should not exceed the above measurements
Sheet Coverage
Unit: mm
| Sheets | 1 | 2 | 3 | 4 | 5 |
| 5 - Rib | 760 | 1580 | 2340 | 3100 | 3860 |
| Corrugated | 760 | 1620 | 2380 | 3140 | 3900 |
Maximum Recommended Curves
Maximum purlin space is 750mm when curving sheets.
Wonderglas GCP has a relatively high shade factor but provides plenty of soft light without uncomfortable levels of heat being transmitted as well. Providing there is good ventilation, temperatures under Wonderglas GCP are lower than in direct sunlight, and cooler than under transparent sheeting. The transmitted light and shade factors are shown next to the colours, both factors vary by colour.






The extra strength of "Wonderglas GCP" allows longer spans between purlins. It doesn't expand and contract as much as transparent roofing, so there is no need to use messy anti-noise tape under the sheet.
"Wonderglas GCP" sheeting resists scratching, is light, easily drilled
or sawn and quickly fixed to roofing timbers using Ampelite screws and sealing
washers. Sheets can be curved, as shown in the table, so you
can create a great new look. To complete the job, profiled end closure strips
are available.
CUTTING
Use a fine tooth handsaw or a power saw fitted with a masonry type cut-off blade. Support the sheet close to where you are cutting, remember to wear protective goggles when using any power tool. Most outlets will order your required length custom cut up to a maximum of 8 metres in length.
DRILLING OF SHEETS
Ampelite fixing screws and weatherproof seals should always be used. For
normal domestic installations we recommend 50mm x 10g screws with 26mm seals.
The screws holes must be a minimum of 8mm in diameter to allow for expansion and
contraction of the sheet as temperatures change.
FIXING OF SHEETS
Corrugated sheets should be crest fixed at every second or third corrugation on the ends and every third or fourth on the intermediate supports. 5-Rib sheets should be crest fixed on each rib at the ends and every second rib at the intermediate supports.
OVERLAPPING OF SHEETS
In most domestic applications end laps will not be required. Should they be necessary, make over a batten and apply 2 continuous beads of non hardening silicone (Seal-Once), or closed cell foam strip (3mm x 25mm). In installations when safety mesh is used, Ampelite isolation tape should be applied between the mesh and the sheet.
STORAGE PRIOR TO USE
Always store in a cool dry location. Do not place heavy objects on the sheets to avoid surface damage.
Wonderglas GCP Fibreglass features a limited lifetime warranty. For full warranty details, please contact your nearest Ampelite office.

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ISO 9001 2000
AS/NZS 4256.3
QEC 4787
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