AMPELITE – Commercial Roofing – webglas S-996 GC
WEbglas s-996 GC – Corrosion Resistant Trafficable Fibreglass Roofing
acids or alkalines may occur, Webglas S996+ which incorporates vinyl ester resins, will provide additional protection.
Webglas S996 is protected by the same highly UV-resistant gel coat as used on our Wonderglas S-996 which is the ultimate impenetrable barrier, reducing surface erosion and loss of light transmission to negligible proportions. Highly resistance to a wide range of chemicals and very low surface erosion, Webglas S996 warranty covers light transmission and structural integrity for 20 years.
Webglas S996 is manufactured using Ampelite’s Proprietary SL Group 3 ‘Bromine Free’ Fire
Retardant Resin System. Surface Finish Properties have been tested to ISO 5660 and achieved a group number 3 performance in accordance with NZBC Verification Method C/VM2 Appendix and is manufactured in strict accordance with the New Zealand standard AS/NZS 4256, Parts 1 & 3: 1994.6, Standards License No.SMKB20116.
MAIN BENEFITS
- The standard thickness of 2.2mm
- Foot traffic safe – no safety mesh required
- Woven mat provides greater spanning capacity
- Surface Protected by S996, ultimate impenetrable barrier.
- Full proprietary fixing system and accessories available
- Available in all current and superseded profiles
- Available in clear, Opal and IR heat reducing sheeting
- Can be manufactured to match most steel roofing colours
- Corrosion resistant
- Surface Finish Properties – group number 3
- 30 years in the market
Applications
- Public buildings and schools, or wherever there may be access to the roof.
- Fertilizer and Agricultural Chemical Plants.
- Corrosive Chemical processing
- Petrochemical environments
- Wastewater Treatment
- Marine Environments
- Mining Industry
- Paper and pulp manufacturing
- Salt extraction and desalination plants
- Power Stations
Webglas S-996 GC – Sheeting Information
PLANNING
Light and Heat Transmission
LIGHT & HEAT TRANSMISSION 2.2mm
| COLOUR | LIGHT (%) | HEAT (%) |
|---|---|---|
| Clear | 60 | 66 |
| Opal | 56 | 60 |
All current profiles such as Corrugated, 5 rib, LT7, BB900, etc. plus most superseded profiles are available.
Please download our list of popular profiles
PROFILES & SPANNING CAPACITIES
| SHEET APPLICATION | STRIP LIGHTING | *COMPLETE ROOF | ||
|---|---|---|---|---|
| Profile | Fastener Spacing | Fixing per SQMTR | 1.5 KPA | Maximum |
| Corrugated | Every 2nd crest | 6.5 | 1900 | 1500 |
| 5 Rib | Every crest | 5.2 | 2500 | 1700 |
| Steelspan, Topspan | Every crest | 5 | 2900 | 2100 |
| Metric,Windek,MC1000 | Every crest | 4 | 2400 | 1600 |
| BB90 | Every 3rd crest | 3.8 | 2700 | 1700 |
| Supersix | Every 2nd crest | 3.3 | 2900 | 2100 |
| LT7 | Every 2nd crest | 3.9 | 2700 | 1700 |
Concentrated loads as per AS1170.2. For information regarding recommended spans in high wind and cyclonic regions, please contact your local Ampelite office.
EXPANSION DATA
| MATERIALS EXPANSION COMPARISON 0°-40° TEMPERATURE VARIATION. SHEET LENGTH 12 METERS | |||||
|---|---|---|---|---|---|
| WEBGLAS GC | FIBERGLASS | POLYCARBONATE | STEEL | ALUMINIUM | |
| Thermal Expansion | 9.1mm | 14.4mm | 32.4mm | 5.8mm | 11.5mm |
| Thermal Co-efficient | 1.9 x 10-5 cm/cm°C | 3.0 x 10-5 cm/cm°C | 6.75 x 10-5 cm/cm°C | 6.75 x 10-5 cm/cm°C | 2.4 x 10-5 cm/cm°C |
PHYSICAL PROPERTIES
| PHYSICAL PROPERTIES | |
|---|---|
| Tensile Strength | 111 Mpa |
| Impact Strength | 10 Joules |
| Shear Strength | 90 Mpa |
| Modulus of Elasticity | 5300 Mpa |
| Compressive Strength | 151 Mpa |
| Flexural Strength | 181 Mpa |
| Specific Gravity | 1.6 |
| Thermal Expansion | 1.9 x 10-5 cm/°C |
| Thermal Conductivity | 0.096 watt/m°C |
| Water Absorption | .2% in 24hrs./26°C |
| Recommended Service Temperature Range | -20° to +95°C |
Technical Support
Projects involving corrosive environments often require supportive evidence regarding product suitability or manufacturer’s recommendations regarding the use of a particular material. Ampelite can provide extensive technical support to the extent of product development if necessary.
Please contact your local Ampelite office if you require this service.
AMPELITE – WEBGLAS S-996 GC
INSTALLATION
Correct installation is important
Ampelite sheeting shall be installed in accordance with Ampelite fixing instructions and with AS/NZS 1562.3:1996, Design and installation of sheet roof and wall cladding, Part 3: Plastic. The requirements of the NZ building code and the NZ Metal Roofing Manufactures Association Code of Practice.
In corrosive environments, we recommend that
All fixings are Stainless Steel.
All fixings are metal profile washers and EDPM seals.
Flashing & Capping
We recommend that all be Stainless Steel.
Please download a copy of the Webglas Installation Guide.
Accessories
Ampelite has a large range of accessories available to help make the installation of Webglas GC quick and professional. These accessories include a range of self-drilling that oversize the fastener holes as they pass through the sheet and self-adhesive tapes and profiled form filler strips for vermin protection.
Please note these additional important requirements
Webglas sheeting matching positive fixed profiles shall be installed using the fastening length applicable to the main cladding and a. This combination gives a secure and weather tight finish. The fixing screws should not be over tightened to an extent that the sheet buckles, allowing water penetration at the seal or sheet overlap.
Fixing should be made at every crest at both ends of the sheet, and every second crest at intermediate purlins.
Normally safety mesh is not required under Webglas, but if sheeting is in CONTACT WITH SAFETY MESH a Protective Fibreglass Protective Strip should be installed over the safety mesh, to avoid fracturing of the underside of the sheet.
Where END LAPPING is required a minimum of 300 mm overlap is essential. On profiles such as corrugated, 5-rib or similar, we recommend the use of 25 mm Lap Seal Tape at the top and bottom edges of the purlin. This ensures the strips are concealed. For Decking profiles, two continuous beads of a clear non-hardening sealer (i.e. silicone), must be applied across the full width of the decking within the overlap. End lapping should only be applied to roofs with a minimum pitch of 5°.
IMPORTANT: Ampelite sheeting should be installed by pre-drilling oversize holes to allow for expansion and contraction. The basic calculation is 0.75 mm per lin. /m, plus shank diameter of the screw. Do not over tighten screws.
EXAMPLE: 10 m sheet – 10 (m) x 0.75 (mm) + 4 mm (fastener) =11.5 mm pre-drilled hole.
Clip Fixed Decking
Ampelite sheeting matching clip-fixed deck profiles shall be installed in conjunction with the main cladding and should be side lapped with overlaps on both sides (Ampelite sheets have 2 female laps). Fixing of sheets should be carried out in the same manner and practice as those stated for positive fixed profile roofing.
Wall Cladding
Pan fixing is required at each girt, and the use of the correct Ampelite washer and seal ensures a weather-tight seal. Over tightening must be avoided. Fixing shall occur in every pan at both ends of the sheeting, and every other pan at intermediate grits.
Cyclone Zone Installation
Installation in cyclone-prone areas follows the recommendations and code for normal fixing, but further specific requirements must be met. Please contact your local Ampelite office for the latest information.
Storage
The sheeting should always be stored in a dry and fire-safe area. Do not store heavy materials on top of sheets as they may fracture.
Recycling and disposal
Fibreglass sheeting is not recyclable and should be disposed of in a landfill. Do not incinerate fibreglass off-cuts as burning produces acrid smoke and noxious, toxic fumes.
Trafficable
Webglas sheeting is a trafficable material. Sheets should be handled with care to avoid damage. Guarantees will not apply to sheeting that has been damaged in handling or mechanical damage.
Safety Data
There are no ill effects from handling ‘Ampelite’ Fibreglass sheets as a finished product.
Some exposure to air-borne particles occurs on the drilling, cutting and trimming of the material. Although there are no known cases of harmful effects, even after long term exposure, it is recommended to take certain precautionary steps.
Effects of Exposure to Dust Particles
- Eye (contact) Can cause irritation. Appropriate eye protection should be worn. If irritation occurs due to exposure to dust particles, wash eyes with running water using an eye bath or wash bottle. If irritation persists seek medical attention.
- Skin (contact) Can cause irritation. Shower thoroughly using soap and a cloth or sponge.
- Inhalation (breathing) Dust masks are recommended although particles are not respirable.
- Ingestion (swallowing) Non-toxic. Extensive studies have revealed no serious effects.
