Ampelite EEFAS® Skylight - NCC Part J1.4 Compliant
Energy Efficient Factory Assembled Skylight System
The Ampelite EEFAS® (Energy Efficient Factory Assembled Skylight) system is a high-performance, fully integrated skylight solution engineered for use with all major insulated roof panels, including those from Askin, Bondor, and Kingspan. Designed to comply with the NCC 2019 (Part J1.4) for thermal performance in Class 2 to 9 buildings, the EEFAS system offers superior daylighting and insulation capabilities in a factory-assembled composite unit.
Constructed using Webglas GC (a gel-coated, trafficable GRP sheeting) and Lexan Thermoclear® polycarbonate glazing, the EEFAS system ensures long-term clarity, strength, and weather resistance. Fire-retardant foam cores and Colorbond® trims ensure airtight assembly, preventing condensation and enhancing on-site installation efficiency.
This system is ideal for architects and builders seeking high-quality natural lighting that meets or exceeds building code requirements for energy efficiency.
Specifications
Maximum Sheet Length: 6500 mm (custom made to order)
Minimum Roof Pitch: 2 degrees
Compatible Panels: Designed to integrate with Askin, Bondor, Kingspan and other major insulated roof panels
Components:
• Top skin – Webglas GC (trafficable, UV-stable, gel-coated GRP)
• Core – Fire-retardant high-density foam
• Inner glazing – Lexan Thermoclear® (UV-stable polycarbonate)
• Edge – Colorbond® side/end plates for structural integrity
Thermal Performance:
• Solar Heat Gain Coefficient: 0.14
• U-Value: 1.6 W/m²K
• R-Value: 0.62
Acoustic Performance:
• Sound Reduction Index (Rw): 31 dB
Wind Load Performance (Span Table):
(Span values are approximate and depend on fixings used)
• 1.0 kPa: 3.0 m (crest fix only)
• 1.5 kPa: 2.3 m (crest), 3.0 m (pan)
• 2.0 kPa: 1.7 m (crest), 2.6 m (pan)
• 2.5 kPa: 1.4 m (crest), 2.0 m (pan)
Compliance Standards:
• NCC 2019 (Section J1.4)
• AS 4256 Parts 1, 3 & 5: Rooflights & Plastics
• AS/NZS 1170.2: Wind Actions
• AS 1562.3: Plastic Cladding
• AS 4040: Wind Load Testing
Installation Notes:
• Factory-assembled for seamless integration
• Minimum pitch of 2° required
• Must be installed to AS 1562.3 and Ampelite’s guidelines
• Custom lengths and integration support available
Warranty
20-Year Pro-Rata Warranty
Covers:
Water penetration through the panel
Delamination or fibre protrusion through sheet surfaces
10-Year Pro-Rata Warranty
Covers:
Structural integrity under wind loads up to 100 km/h
Yellowing that reduces light transmission by more than 10%
If you have any questions regarding the warranty, please contact your nearest Ampelite office or Ampelite sales representative.
- EEFAS Brochure
- EEFAS Details