
Fixed Skylight (FCM)
Suitable for flat roofs, the brilliantly simple FCM Skylight is a cost effective way to provide natural daylight to buildings with flat roofs. The High Performance double glazing provides excellent thermal insulation and has been tested for hail resistance.
Product features:
- Laminated glass will not fade or discolour over time – unlike acrylic or polycarbonate.
- Available in 12 sizes
- Maintenance-free anodized heavy-gauge aluminium frame withstands the extremes of the Australian climate.
- Versatile product that can be used on roofs between 0-60° in pitch*
- Can be used in portrait, landscape or even “diamond shape” orientation**
- High Performance double glazing as standard – blocks approx 70% of radiant heat and gives 99% protection from UV rays
- Requires custom-made flashing (not supplied). See our flashings tab in the products menu.
- 10 year guarantee.
- High Performance double glazing as standard; with NEAT™ coating to reduce cleaning frequency.
Ideal replacements for old acrylic domes
- Superior product for a similar price.
- High Performance glazing: Laminated inner pane, toughened outer pane.
- 3 skylight sizes can be used as direct replacements# for standard 400x800mm, 600x800mm and 900x900mm domes.
Technical Performance


U-value † | Solar Heat Gain Co-efficient † | Bushfire^ | Hailstone Test | WERS max 5 stars (summer rating) | Australian standards |
Skylight 2.9‡ Glass only 1.93 | Skylight 0.28 Glass only 0.28 | BAL40 | VELUX Simulated Tests ASTM E822-2009 | ![]() ![]() ![]() ![]() ![]() | AS4285, AS1288 AS3959^, AS1530.1 |
NB: VELUX recommends FCM is installed with a slight pitch (e.g. 3°-5°) to help prevent condensation build-up and water ponding on the glass. **FCM 2270 not recommended for “landscape” orientation. #Custom made collar adapter (not supplied) is required to fit. †U-value (W/m2K) and SHGC data based on AFRC simulations, (FCM complete skylight: size 1275mm x 1275mm). ^Skylight only. Custom-made flashing required. Roof pitch 0°-60°.

‡FCM must be installed with insulation and Gyprock, as shown (typical installation), to achieve 2.9 U-value rating.
- Inner glass dimension
- Gyprock
- Timber Curb/Hob
- Flashing
- Insulation/underlay
- Overall throat dimension