By Skylight Experts
Key considerations before installing a skylight
Installing a skylight is not as simple as cutting a hole in the roof. Professionals consider roof pitch, orientation and the room’s purpose when recommending products. A skylight positioned on a north‑facing roof provides steady, cool illumination, while east‑ or west‑facing installations offer morning or afternoon warmth. The size matters too — the glazing area should not exceed 5 % of the floor area in rooms with many windows or 15 % in darker spaces.
Proper installation involves selecting glazing with heat‑absorbing tints, insulated panes or low‑e coatings to minimise solar heat gain and heat loss. Ventilating models help release hot air accumulating near the ceiling, which is crucial for Auckland’s warm summers. Professionals also optimise the skylight’s slope to achieve the right balance of winter solar gain and summer shading; a roof pitch equal to latitude plus 5–15 degrees often works best.
Why hire a certified installer?
Even the most energy‑efficient skylight will underperform if installed poorly. Certified installers follow manufacturer guidelines, ensure the skylight shaft is insulated and air‑sealed, and use high‑quality flashing. They also understand local building codes and can advise whether consent is needed. A professional installation prevents leaks, ensures compliance with New Zealand standards and maintains warranties.
FAQs
Q: Do I need building consent for a skylight in Auckland?
A: Small skylights usually fall under permitted development, but restrictions may apply to heritage buildings. Always check with local council.
Q: How long does installation take?
A: Yes. Domed or pyramidal glazing sheds water and debris, and flat‑roof skylights include upstands for proper drainage.
Q: Can skylights be added to flat roofs?
A: Yes. Domed or pyramidal glazing sheds water and debris, and flat‑roof skylights include upstands for proper drainage.
