Flat-glazed (Velux-style) and acrylic dome skylights each have a place. Here is how they compare on light, looks, leaks and cost for NZ roofs.
When choosing a skylight, the two broad options are flat-glazed units (the Velux style) and acrylic domes. Each suits different roofs, budgets and looks. Here is how they compare for NZ homes.
Flat-Glazed (Velux-Style)
Flat-glazed skylights sit low and sleek, give clear, undistorted views of the sky, and suit modern homes. Quality units offer good glazing, opening options and reliable factory flashing kits. They are generally the premium choice for appearance and light quality, at a higher price.
Acrylic Domes
Dome skylights use a curved acrylic that diffuses light and sheds water and debris well. They are typically cheaper and are common on flatter roofs and utility spaces. The trade-off is a less refined look and acrylic that can yellow or scratch over many years compared with glass.
Which Suits Your Roof
- Modern home, clear view, premium feel — flat-glazed
- Tight budget or utility space — acrylic dome
- Very low-pitch or flat roof — dome often suits
- Want ventilation — opening flat-glazed units excel
- Always prioritise correct flashing over type
Frequently Asked Questions
Are Velux skylights better than dome skylights?
Flat-glazed Velux-style units give clearer light and a sleeker look, at higher cost. Acrylic domes are cheaper and shed water well. The best choice depends on roof and budget.
Which skylight is less likely to leak?
Leak risk comes down to flashing quality more than type. Both perform well when correctly flashed; both leak when poorly installed.
Are dome skylights cheaper?
Generally yes. Acrylic domes cost less and suit utility spaces and flatter roofs, though the acrylic can yellow or scratch over many years.
Which skylight suits a low-pitch roof?
Domes often suit very low-pitch and flat roofs, while flat-glazed units suit standard pitches. We match the unit to your roof and detail the flashing correctly.
Every roof and property is different, so the most reliable next step is an on-site assessment. Our registered, insured Auckland team gives free no-obligation inspections and clear written quotes — repair where repair makes sense, replacement only when it is genuinely better value. Call 022 501 9921 or visit our Roof Repair Auckland page, or book a free inspection online.
Topics covered
- velux vs dome skylights nz
- skylight types nz
- flat glass vs dome skylight
- best skylight nz
- skylight comparison auckland