Velux VCM 4646 Manual Opening Flat Roof Skylight 1275x1275mm

The VELUX VCM 4646 is the largest manual opening flat roof skylight in the VCM range, sized 1275 by 1275mm. It is designed for Australian homes and buildings with flat or low pitch roofing, and the expansive footprint floods large open plan living areas, grand entries and commercial spaces with natural daylight. The sash opens with a simple handle mechanism, and for higher ceilings the VELUX ZCT 300 control rod (sold separately) lets you open and close the window from floor level.

Key Features

• Manual opening sash with a smooth, reliable handle mechanism
• Expansive 1275 x 1275mm glazed area for maximum daylight
• 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
• Pre-installed insect screen keeps insects out during summer ventilation
• Approximately 75% heat block for year-round indoor comfort

Specifications

• Model: VELUX VCM 4646
• Opening size: 1275 x 1275mm
• Type: manual opening roof window for flat roofs up to 15 degrees pitch
• Operation: handle mechanism, or VELUX ZCT 300 control rod (sold separately)
• Glazing: high-performance double glazing with NEAT coating
• Frame: white painted interior wood, grey aluminium external cappings
• Insect screen: pre-installed

Applications

• Large open plan living and dining areas
• Grand entries and double height spaces
• Commercial fit-outs and retail spaces
• Rooms where a maximum daylight opening is the goal

What You Need To Complete Your Skylight Installation

To finish the job you need a flashing matched to your roof profile. Choose a custom skylight flashing for a weathertight seal, and if the ceiling is out of reach, add a VELUX control rod. Browse the full manual flat roof skylight range for other sizes, and see all VELUX skylights in store.

Frequently Asked Questions

What size is this skylight?

The VCM 4646 has a square opening size of 1275 by 1275mm, the largest in the VCM manual flat roof range. It is designed for large open plan areas, grand entries and commercial spaces where a maximum daylight opening is the aim. The bigger footprint also means more glass area to keep clean, and the NEAT coating helps with that.

Does this skylight open?

Yes. The VCM 4646 is a manual opening skylight, so the sash opens and closes with a handle mechanism. If the window sits above arm’s reach, you can pair it with the VELUX ZCT 300 control rod, which lets you open and close the window from floor level. An insect screen is built in to keep insects out while it is open.

What roof does it suit?

This skylight is designed for flat and low pitch roofs up to 15 degrees. A flashing matched to your roof profile and material is required and is sold separately. Choose the flashing option for your roof type and finish so the skylight drains water correctly and stays weathertight over time.

Can I order for delivery or pickup?

Yes. Order online for Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. We confirm your order once it is ready, and if you need help selecting the right skylight or flashing, call (03) 93941400 or email orders@singhroofingsupplies.com.au.