Description
Table of Contents
Construction
White PVC frame and sash components with extruded gaskets. White framed insect screen included as standard. VCM needs a custom flashing made by roofer, see preparation guide overleaf.
Operation
VCM Skylights are manually operated. The VCM has a hook included which requires a ZCT 300 rod control to wind the hook and open the sash, or for applications within reach, the ZZZ 212 winder handle can be used.**

High Performance Double Glazing

Benefits:
- Radiant heat block: Complete window Glass only
- UV Harmful rays block approx 99%
- WERS rating 5 stars
- Double layer of Low-E³ coating.
- 10 year warranty on insulated glass seal.
- Reduced cleaning frequency.
Australian Standard AS1288
Laminated glass (standard with VCS) must be used
for skylights installed 3m or more above floor level.
NEAT™ Photocatalytic Coating
- Silicone Dioxide/Titanium Dioxide coating reacts with the sun’s UV rays to decompose surface organic dirt before rinsing away with the next shower of rain, thereby reducing cleaning frequency.
- The coating also makes the glass surface smoother, so water disperses evenly, sheets off, and evaporates quickly; thereby minimising water spotting on the pane.
* VELUX recommends VCM is installed with a slight pitch (e.g. 3°-5°) to help reduce condensation build-up and water ponding on the glass.
** Winder handle and extension rods to be purchased separately. Details overleaf.
Solar powered blinds



Honeycomb blinds
Adds a decorative effect.
- Colour: White on both sides.
- Materials: Double layered pleats (polyester) form a ‘honeycomb’ structure. Inner faces of honeycomb structure have aluminium coating. White powder-coated aluminium side channels and top cover.
- Provides near total light reduction.
- Reduce heat by approx 70%.^
- Easy to install.
- Operated by wireless wall-mounted keypad (provided).
- Built-in solar panel charges concealed battery pack.
*Control options-sold separately

Preparation guide for custom-made flashing
Note: If timber hob is greater than 38mm the Gyprock will encroach past the edge of the internal frame.
*Skylight must be installed with timber hob and Gyprock, as shown (typical installation), to achieve 2.9 U-value rating.
Important considerations
VELUX VCS Skylights can be used for flat and low sloping roofs. The low profile external covering and glazing seal prevents water infiltration even at 0°. To help reduce water ‘ponding’ on the glass a slight pitch (e.g. 3°-5°) is recommended.
- VELUX VCM Skylights can be used for flat and low sloping roofs. The low profile external covering and glazing seal prevents water infiltration even at 0°. To help reduce water ‘ponding’ on the glass a slight pitch (e.g. 3°-5°) is recommended.
- VELUX VCM does not come with a flashing kit but can be used with a variety of custom-made curb flashings. Contact VELUX or a local flashing manufacturer for more information.
Opening Restrictions
NCC Vol 1 & 2 regulations (Prevention of Falls from Windows – Balustrades & Barriers): contact VELUX for information relating to restrictor devices for withinreach opening skylights.
VCM – frame and glazing dimensions

VCM technical performance
AS4285 SKYLIGHT– Cyclonic and Non-Cyclonic Tests | Pressure Rating –2.16kPa |
AS1288 OVERHEAD GLAZING | Laminated inner pane |
AS3959 BUSHFIRE | Attack Level 40^ |
NCC BOUNDARY SEPARATION† | Class 1 and Class 10 buildings: Within 900mm of a boundary wall Class 2 to Class 9 buildings: 3 metres from a boundary wall^^ |
VELUX Skylights are deemed non-combustible by CSIRO and thereby comply with NCC boundary separation requirements.
* Tests performed on skylight installed with #8 roofing screws (no screws provided). Not certified for NT DTCM.
† CSIRO assessment report available on request. VELUX recommends consultation with relevant authority before work commences. Skylight assessed in closed position.
^ Roof pitch 0°-60° Skylight only. Custom-made flashing required. Skylight tested in closed position (VCS BAL assessed – based on VSS results), metal flywire mesh protection may be required for opening apertures (consult local council).
^^ Skylight cannot be closer than 3m unless the boundary is adjoining a road or public place. Consult NCC for further details.
VELUX Simulated Tests ††ASTM E822-2009.
†† ASTM E822-2009 standard practice for determining resistance of Solar Collector Covers to Hail impact with propelled ice balls. Hailstone test not performed on solar panel.
VCS Openable Skylights have been energy rated in accordance with the Skylight Energy Rating Scheme (WERS).
Maximum 5 stars Summer Ratings
4.5 out of 5 stars for Winter Rating.
4.5 out of 5 stars for Cool Daylight in Summer.
U-value (W/m2K) | Complete skylight 2.9‡ Glass only 1.93 |
Solar Heat Gain Co-efficient | Complete skylight 0.24 Glass only 0.28 |
Visible Light Transmittance | Complete skylight 0.55 |
Luminous Efficacy (Ke = VT/SHGC) | Complete skylight 2.29 |
Acoustic performance | Complete skylight 31dB# |
Figures generated by AFRC accredited simulators. Figures based on complete skylight: nominal size 1275mm (W) x 1275mm (H).
‡ See required installation method overleaf.
# Based on Rw value tested to A1276.1.
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