Polycarbonate Skylights & Atrium Roofing

For most Indian mall skylights, Multicell 16 mm with Antiglare/Softlite underside finish is the standard specification. The Antiglare finish eliminates hotspots on the retail floor. Solar Ice or Ice tint on the top surface controls heat gain. The double-tooth interlocking system ensures no leak-maintenance callbacks over the life of the building.

Yes. Coxwell Multicell and X-Fix systems are load-tested to all applicable Indian and international standards. Vault and slope profiles drain actively during rainfall. The double-tooth interlocking joint is mechanical, not sealant-dependent — so it maintains its watertight performance through thermal cycling and monsoon loads without degradation.

Standard clear polycarbonate transmits approximately 80% of solar energy, similar to single-pane glass. However, polycarbonate skylights can be specified with Solar Ice or Ice tints that reflect the near-infrared spectrum responsible for heat build-up while maintaining 40–60% visible light transmission — performance not achievable with standard architectural glass without specialist coatings.

No. Coxwell specifies skylights from single bays of 10 m² upward. For very small openings, the Multicell 10 mm is often the most cost-effective specification.

Multicell panels up to 25 mm can span up to 900 mm between purlins as standard. X-Fix extends this to 1,200 mm for larger structural bays. Maximum panel length is 11.8 m (Multicell) and 12 m (X-Fix) without mid-span joints.