VELUX FS C12 Fixed Skylight 550x1800mm for Pitched Roofs

The VELUX FS C12 is a fixed skylight designed for Australian tiled and corrugated roofing. At 550 x 1800mm it is an extra-tall fixed roof window that floods double-height atriums, stairwells and grand entryways with natural daylight. The tall profile suits spaces where a vertical run of light is needed, and the fixed sash keeps the frame slim against the roofline.

Key Features

• White painted interior wood frame and sash for a clean, classic finish
• Grey aluminium external cappings for long-lasting weather protection
• High-performance double glazing with NEAT self-cleaning coating
• Low-profile design sits flush with the roofline for a sleek appearance
• Approximately 75% heat block for year-round indoor comfort
• Laminated inner glass for safety, meeting Australian Standards
• Compatible with VELUX solar blinds for light and heat control
• Suits pitched roofs with the correct flashing (sold separately)

Specifications

• Model: VELUX FS C12 fixed skylight
• Size: 550 x 1800mm
• Type: fixed, non-opening
• Frame: white painted interior wood frame and sash
• Exterior: grey aluminium cappings
• Glazing: high-performance double glazing with NEAT self-cleaning coating
• Heat block: approximately 75%
• Roof type: pitched tiled or corrugated roofing
• Standards: meets Australian Standards for thermal performance

Applications

• Double-height atriums, stairwells and grand entryways
• Tall internal walls where a vertical run of natural light works best
• Rooms with high ceilings that suit an elongated skylight
• Natural light without the need for opening ventilation

What You Need To Complete The Installation

A fixed skylight needs the right flashing to stay weathertight. Add the matching VELUX custom flashing for the FS C12 for your roof profile, and pair the skylight with VELUX solar remote blinds to control light and heat from below. Browse the full VELUX fixed skylight range for pitched roofs or the wider Velux Skylights range.

Frequently Asked Questions

What size opening does the FS C12 need?

The FS C12 is a 550 x 1800mm skylight, which matches the rough opening for a VELUX C12 unit. The flashing kit is selected to match both the skylight model and your roof material, so confirm the profile with the supplier before ordering.

Can I add blinds to a fixed skylight?

Yes. The fixed skylight is compatible with VELUX solar remote blinds, which are powered by the sun and controlled with a hand-held remote, so there is no wiring in the ceiling. That lets you filter light and reduce heat gain without touching the skylight.

Does a fixed skylight need a flashing kit?

Yes. A flashing kit is required to make the skylight weathertight against the roof, and it is sold separately. The right kit depends on the skylight model and whether your roof is tiled, corrugated metal, TrimDeck or Kliplok.

How much heat does the glazing block?

The double-glazed unit blocks approximately 75% of solar heat, which helps keep the room cooler in summer. The NEAT self-cleaning coating also helps rain wash dirt off the glass so the skylight stays clear with less maintenance.