VELUX FCM Skylight Installation in St Kilda
A fixed VELUX FCM 3446 skylight installed over a bathroom on a low-pitch corrugated metal roof, finished with a custom Colorbond base flashing and backflashing system.
A practical fixed skylight solution for a low-pitch bathroom roof
This St Kilda project involved installing a customer-supplied VELUX FCM 3446 fixed skylight. Central Skylights completed the roof installation, including the custom flashing and backflashing required to integrate the unit with the existing five-degree corrugated metal roof.
Working with the existing roof structure
The project photographs show the underside of the roof framing before the skylight was installed. The selected position was prepared within the timber structure, allowing the new opening to be formed for the rectangular fixed skylight.
The photographs do not show a finished bathroom ceiling before the work, so this project is presented as an installation journey rather than a matched decorative before-and-after comparison.
From opening preparation to a weatherproof roof finish
The available photographs document the key roof-side stages of the work and the resulting daylight opening below.
Opening set-out
The skylight position was marked within the roof framing to establish the opening and alignment.
Roof preparation
The roof area and underlay were prepared around the planned opening before the skylight and metal flashing were fitted.
Skylight prepared
The fixed VELUX FCM unit was checked and prepared for installation. The invoice confirms the 3446 size.
Custom metal flashing
A custom Colorbond base flashing was formed around the skylight, with backflashing continuing toward the higher roof junction.
Completed roof finish
The finished exterior shows the fixed skylight seated neatly within the new corrugated metal roof section and surrounding flashing.
Daylight opening below
The internal photograph confirms clear sky view and daylight through the new opening. Final ceiling and shaft finishing are not shown.
Product, roof and flashing information
Confirmed from project documentation
- One customer-supplied VELUX FCM 3446 fixed skylight
- Nominal unit dimensions listed as 970 × 1275 mm
- Installed for a bathroom at a residential property in St Kilda
- Single-storey installation on a five-degree CGI/corrugated metal roof
- Custom Colorbond flashing in Southerly colour
- Two metres of installed Colorbond backflashing listed in the scope
- Installation completed on 25 June 2026
What the photographs show
- Timber roof framing and insulated roof cavity
- Set-out and preparation of the roof opening
- A low-pitch corrugated metal roof surface
- Completed fixed skylight and formed metal flashing
- Backflashing extending to the upper roof junction
- Natural daylight visible through the internal opening
Flashing designed for the actual roof
On a low-pitch corrugated roof, the skylight must be integrated with a flashing arrangement suited to the roof profile and water path. For this project, the documented scope included a custom Colorbond base flashing and backflashing rather than a standard pitched-roof tile flashing kit.
Homeowners comparing VELUX FCM fixed skylights can also review our skylight installation cost guide for the main factors that affect installation scope.
Evidence from the St Kilda installation
Skylight installation across inner Melbourne
Central Skylights completes skylight supply and installation work across Melbourne, including projects where a homeowner has already purchased a suitable unit and requires professional roof integration.
Why homeowners choose Central Skylights
- Experience with VELUX fixed and opening skylights
- Custom flashing solutions for corrugated metal roofs
- Clear assessment of roof pitch, water flow and site access
- Project-specific installation rather than a one-method-fits-all approach
- Real completed-project examples across Melbourne
Nearby areas
We also service surrounding inner-south and bayside suburbs.
Questions about this St Kilda skylight project
Which skylight was installed?
The documentation identifies one VELUX FCM 3446 fixed skylight, with dimensions listed as 970 × 1275 mm.
Did Central Skylights supply the skylight?
No. The customer supplied the VELUX unit. Central Skylights completed the single-storey installation and the documented custom flashing work.
What roof type was involved?
The invoice identifies a five-degree CGI roof, and the photographs show a low-pitch corrugated metal roof.
Was the internal shaft fully finished?
The photographs show the daylight opening below the skylight, but they do not confirm completed plastering, sanding or painting. Those items are therefore not claimed as part of this case study.
Why was custom flashing used?
The project required the skylight to be integrated with a low-pitch corrugated roof. The documented scope included a custom Colorbond base flashing and backflashing suited to that roof arrangement.
Can Central Skylights install a customer-supplied skylight?
This project was installation-only for the skylight itself. Suitability still needs to be checked for each property, roof pitch, product and installation condition.
Planning a skylight installation in St Kilda?
Arrange a site visit so we can assess your roof, ceiling, preferred position and the most suitable installation method for your home.
Explore our skylight installation services or return to the Central Skylights Melbourne homepage.