Traditional Skylight - SL

Name: Traditional Skylight - SL
Brand: Skyspan
Availability: InStock

Traditional Skylight - SL

Size

Roof Type

Ventilation

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Flashing Colour Zincalume

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Pairs well with

Trade Pricing Installation Enquiry Product / Customisation Enquiry

7-Year Warranty

Available For:

Supply Only or Supply & Install

Traditional Skylight - SL

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Product Brochure

The Skyspan Traditional Skylight is a proven, durable solution for bringing natural light and ventilation into interior spaces. Its low-profile dome design suits all Australian roof types — corrugated, metal deck, tile, and concrete — providing bright, even daylight with minimal maintenance.

Manufactured from Zincalume® steel as standard, with options in stainless steel, aluminium, galvanised steel, copper, or Colorbond® finishes. The thermoformed acrylic dome (3 mm standard, 4.5 mm large) has no fixings through the glazing, allowing for natural thermal movement. Available in clear, tint, or opal finishes.

Complies with AS4285:2019 Rooflights and backed by a 7-year warranty.

VLT (Visible Light Transmission)	98%
SC (Shading Coefficient)	0.098
SHGC (Solar Heat Gain Coefficient)	0.85
U-Value	5.5

Figures are for acrylic domes only.

Dome Material	UV-stabilised acrylic dome
Frame & Flashing	Welded aluminium frame with Zincalume® flashing
Roof Pitch Suitability	Approx. 0° – 60° (refer to technical details for minimum fall)
BAL Rating	Low
Compliance	AS 4285 – Rooflights AS 3959 – Bushfire Construction (project specific) AS/NZS 1170 Series – Structural Design Actions
Warranty	7 Years (manufacturing defects)
Made In	Australia

FAQs

Please read our FAQs page to find out more.

Are Traditional Skylights trafficable in any way?

No. Traditional (polymer dome) skylights are not trafficable, including for cleaning or maintenance.
They must not be walked on or loaded under any circumstances.
Roof access, cleaning, and maintenance must be carried out around the skylight, not on it.

Acrylic vs Polycarbonate

Skyspan dome skylights are supplied with acrylic domes as standard, however polycarbonate domes can be specified on request.

Acrylic is the preferred standard material because:
- it has excellent long-term UV stability
- it resists yellowing, clouding, and embrittlement over time
- it maintains clarity and structural integrity for longer periods in Australian conditions
- it offers very good impact resistance for skylight applications

Polycarbonate is:
- initially stronger and more impact resistant than acrylic
- often chosen where short-term impact resistance is the primary concern

However, polycarbonate is more susceptible to UV degradation over time. Prolonged exposure to sunlight can cause it to:
- discolour or haze
- lose strength
- become brittle earlier than acrylic

For this reason, acrylic generally offers a longer service life for roof-mounted skylights exposed to constant UV radiation.

Are Traditional Skylights suitable for bushfire-prone areas?

Traditional Skylights are suitable for low BAL-rated areas under AS3959.

For projects in higher BAL zones, Skyspan recommends confirming requirements early, as glass skylights or alternative systems may be more appropriate depending on the BAL level and roof configuration.

Can Traditional Skylights be used on very low-pitch or flat roofs?

Yes — this is one of their key advantages.

The domed profile naturally sheds water, making Traditional Skylights well suited to low-pitch and near-flat roofs where flat glass skylights may not be appropriate without additional detailing.

This makes them a common choice for commercial, industrial, and large-area roofs.

When should a Traditional Skylight be chosen instead of a glass skylight?

Traditional Skylights are typically the right choice when the priority is:

- Cost-effective daylighting
- Low-pitch or flat roof conditions
- Diffused, glare-free light
- Large quantities across wide roof areas
- Robust, low-maintenance performance

For architectural feature spaces, occupied rooms with strict thermal requirements, or projects needing certification for higher performance, glass skylights may be more suitable.