VELUX VCM 4646 Manual Opening Flat Roof Skylight (1275x1275mm)
The VELUX VCM 4646 is the largest manually operated flat roof skylight in the VCM range, designed for Australian homes with flat or low-pitch roofing. With an expansive 1275x1275mm footprint, this premium manual opening skylight floods large open-plan living areas, grand entries, and commercial spaces with natural daylight while offering controlled fresh air ventilation.
Manual Operation, Simple and Reliable
This VELUX manual venting skylight opens smoothly via a handle mechanism. For installations within easy reach, the handle provides direct control. For higher ceilings or out-of-reach placements, pair it with the VELUX ZCT 300 control rod (sold separately) for effortless opening and closing from floor level.
Key Features
- White painted interior wood frame and sash for a clean, classic look
- Grey aluminium external cappings for weather protection and durability
- High-performance double glazing with NEAT coating to reduce cleaning and maintenance
- Pre-installed insect screen keeps mosquitoes and flies out during summer ventilation
- Designed for flat roofs up to 15 degrees pitch with appropriate flashing (sold separately)
Built for Australian Conditions
This VELUX flat roof skylight features laminated inner glass for added safety and approximately 75% heat block, helping maintain comfortable indoor temperatures year-round. The double-glazed unit meets Australian building standards for thermal performance and safety compliance.
Singh Roofing Supplies is an authorised Australian supplier of genuine VELUX products. We stock the full VCM range with fast local shipping across Australia.

