top of page
RSI logo-01.png
Curved vault skylight over an outdoor patio with palm trees and dining tables

Vault Skylights That Maximise Natural Daylight Indoors

Vault skylights are ideal for larger spaces, creating dramatic rooflines, maximising natural daylight, and making a striking architectural statement.

 

Rainbow Skylight International designs, manufactures, and installs custom vault skylights throughout South Africa. Our bespoke solutions are engineered to flood expansive interiors with natural light while enhancing the architectural character and visual appeal of the space.


Pricing varies depending on the size, glazing specification, frame finish, and project requirements. Contact our team for a customised quotation tailored to your specific needs.

Not sure if a vault skylight is the right fit? Explore our full range of skylight systems to compare vault, dome, pyramid, flat, and tubular options side by side.

Built on Trust. Designed to Deliver.

ChatGPT_Image_Apr_15__2026__02_12_50_PM-removebg-preview.png

Standard and custom sizing available

Designed for larger spans and bespoke roof forms

Suitable for residential and commercial applications

Quote guidance available

We'll guide sizing, specification, and the right configuration for your project

ChatGPT_Image_Apr_15__2026__02_13_12_PM-removebg-preview.png
ChatGPT_Image_Apr_15__2026__02_13_25_PM-removebg-preview.png
ChatGPT_Image_Apr_15__2026__02_13_30_PM-removebg-preview.png
ChatGPT_Image_Apr_15__2026__02_13_30_PM-removebg-preview.png
Curved vault skylight over an outdoor patio with palm trees and dining tables

Bring Bigger Daylight Ambitions to Life

Not sure which solution is right for your project? Our team can help you determine the ideal size, configuration, and structural direction before plans are finalised.

Skylights

Suntile.png

Rainbow Suntile

Rainbowvault.png

Standard & Custom Rainbowvault

Dome.png

Rainbow Dome

Tubelight.png

Rainbow Tubelite & Supertube

Glazed.png

Rainbow Flush Glazed Glass Skylights

Indoor swimming pool illuminated by a curved vault skylight roof.jpg

Flat skylights are glazed rooflight systems designed to bring natural light into the space below through a streamlined roof opening. They are often selected for projects that need overhead daylight with a more subtle architectural expression.
 

Rather than becoming the main feature of the roof, flat skylights support the overall design of the building. This makes them especially well suited to modern homes, commercial interiors, and architectural spaces where simplicity and finish matter.
 

Compared with more raised or feature-led skylight types, flat skylights are typically chosen for their balanced appearance, design flexibility, and ability to deliver daylight in a clean, contemporary way.

Specifying Vault Skylights

Vault skylights are curved, arched, or elongated rooflight systems designed to introduce natural light across broader spans while forming a strong, continuous architectural feature on the roof.

They perform particularly well in long, linear spaces such as corridors, walkways, and gallery-style interiors, where they draw light through the full length of the space, creating a unified sense of volume and enhancing overall spatial flow.

 

They are also highly effective in atriums and double-volume spaces, where the curved or elongated form becomes a defining architectural element while flooding the interior with daylight from above.

 

In covered outdoor areas such as patios, verandas, and entertainment spaces, vault skylights provide shelter while maintaining a bright, open-air feel.

 

They are well suited to premium residential homes, covered outdoor areas, atriums, feature interiors, and bespoke commercial environments where both daylight performance and architectural impact are essential.

Tell us about your roof shape, room type, and
daylight goals, and we’ll guide the right setup.

Designed for Span, Form, and Flow

ChatGPT_Image_Apr_15__2026__02_13_12_PM-removebg-preview.png

Form

ChatGPT_Image_Apr_15__2026__02_14_34_PM-removebg-preview.png

Configuration

Curved or elongated profile for extended daylight

Bespoke layouts to suit span and design

ChatGPT_Image_Apr_15__2026__02_14_48_PM-removebg-preview.png

Structure

ChatGPT_Image_Apr_15__2026__02_13_59_PM-removebg-preview.png

Glazing

Engineered for larger openings

Glass,
acrylic, or polycarbonate

ChatGPT_Image_Apr_15__2026__02_14_03_PM-removebg-preview.png

Finish

ChatGPT_Image_Apr_15__2026__02_14_08_PM-removebg-preview.png

Size

Frame finish options available

Standard and custom lengths and spans available

ChatGPT_Image_Apr_15__2026__02_14_55_PM-removebg-preview.png

Light Effect

ChatGPT_Image_Apr_15__2026__02_14_17_PM-removebg-preview.png

Installation

Continuous daylight across wider areas

Suited to flat and custom roof structures for larger spans

Vault skylight structure over an outdoor swimming pool area with wooden pergola framing

VAULT SKYLIGHT SYSTEM

Design and Configuration Options

Low Rise

Diagram icon of a low-rise vault skylight configuration

Low Rise with Ventilation

Diagram icon of a low-rise vault skylight with ventilation

Mid Rise

Diagram icon of a mid-rise vault skylight configuration

Semi-icircle Mullions

Diagram icon of a vault skylight with semi-icicle mullions

Where Vault Skylights Make the Biggest Difference

Atriums and Internal Courtyards

Double-Volume Living Areas and Stair Halls

Covered Outdoor Rooms and Enclosed Terraces

Reception, Hospitality, and Shared Circulation Spaces

Bespoke Long-Span
Roof Forms

Vault skylight above an atrium or internal courtyard
Vault skylight over a double-volume living area and stair hall
Vault skylight covering an outdoor room or enclosed terrace
Vault skylight above a reception area or shared circulation space
Vault skylight forming a bespoke long-span roof structure

Materials That Support a More Bespoke System

Glass Skylights

A refined option for premium projects where finish and visual impact matter most.

Polycarbonate & Acrylic Options

Durable, lighter-weight materials suited to larger spans and practical project requirements.

Aluminium Framing

Aluminium frames provide a durable, precision-engineered structure with a high-quality powder-coated finish, available in a range of colours to suit specific design requirements.

Glass Skylights icon.avif
Polycarbonate & Acrylic Options Icon.avif
Aluminium Framing Icon.avif
Vault skylight structure over a swimming pool surrounded by greenery

Solutions for residential,
commercial, and
architectural applications

Support with repairs, refurbishment, waterproofing, and replacement

Choose the Right Configuration for Your Roof

Whether you’re designing a feature space, atrium, or large-span roof, the right vault skylight depends on scale, structure, and architectural intent.

Get in touch with Rainbow Skylights to discuss your project and find the ideal configuration for your space.

Installations for Long- term performance

Because these skylights are often more bespoke and structurally demanding, installation must carefully resolve support, waterproofing, flashing, roof integration, and the final architectural finish. Good design coordination is essential if the skylight is going to perform well and look fully at home within the roof.

Rows of curved vault skylights installed on a flat commercial rooftop with city buildings
Vault skylight over an outdoor pergola dining area

Frequently Asked Questions

  • Vault skylights are often the right fit where the project calls for a longer-span rooflight, a more sculptural roof form, and a stronger architectural daylighting effect.

  • In many cases, yes. Vault skylights are often tailored to the opening, structure, and design goals of the project.

  • It helps to know the size of the opening, the roof type, the intended visual effect, and whether the project requires a highly bespoke solution or a more standardised starting point.


Vault Skylights That Maximise Natural
Daylight Indoors

Curved vault skylight over an outdoor patio with palm trees and dining tables

Vault skylights are ideal for larger spaces, creating dramatic rooflines, maximising natural daylight, and making a striking architectural statement.

 

Rainbow Skylight International designs, manufactures, and installs custom vault skylights throughout South Africa. Our bespoke solutions are engineered to flood expansive interiors with natural light while enhancing the architectural character and visual appeal of the space.


Pricing varies depending on the size, glazing specification, frame finish, and project requirements. Contact our team for a customised quotation tailored to your specific needs.
 

Not sure if a vault skylight is the right fit? Explore our full range of skylight systems to compare vault, dome, pyramid, flat, and tubular options side by side.

Vault skylight structure over an outdoor swimming pool area with wooden pergola framing

VAULT SKYLIGHT SYSTEM

Tell us about your roof type,
space, and preferred finish, and
we’ll help you choose the right setup.

Designed for Span,
Form, and Flow

Skylight Application.avif
Roof Compatibility.avif

Form

Curved or elongated
profile for extended daylight

Bespoke layouts to
suit span
and design

Configuration

glazing icon
Shape Icon.avif

Structure

Engineered for
larger
openings

Glass,
acrylic, or
polycarbonate

Glazing

Skylight Size Icon
Glazing Colour Icon

Frame

Frame finish
options
available

Standard and
custom lengths
and spans available

Size

Installation Icon
Light Dispersion.avif

Light Effect

Continuous
daylight across
wider areas

Suited to flat and custom roof structures for
larger spans

Installation

Vault skylights are curved, arched, or elongated rooflight systems designed to introduce natural light across broader spans while forming a strong, continuous architectural feature on the roof.
 

They perform particularly well in long, linear spaces such as corridors, walkways, and gallery-style interiors, where they draw light through the full length of the space, creating a unified sense of volume and enhancing overall spatial flow.

 

They are also highly effective in atriums and double-volume spaces, where the curved or elongated form becomes a defining architectural element while flooding the interior with daylight from above.

 

In covered outdoor areas such as patios, verandas, and entertainment spaces, vault skylights provide shelter while maintaining a bright, open-air feel.

 

They are well suited to premium residential homes, covered outdoor areas, atriums, feature interiors, and bespoke commercial environments where both daylight performance and architectural impact are essential.

Specifying Vault Skylights

Indoor swimming pool illuminated by a curved vault skylight roof.jpg

Where Vault Skylights Make the Biggest Difference

Atriums and Internal Courtyards

Vault skylight above an atrium or internal courtyard
Vault skylight over a double-volume living area and stair hall

Double-Volume Living Areas and Stair Halls

Covered Outdoor Rooms and Enclosed Terraces

Vault skylight covering an outdoor room or enclosed terrace
Vault skylight above a reception area or shared circulation space

Reception, Hospitality, and Shared Circulation Spaces

Bespoke Long-Span
Roof Forms

Vault skylight forming a bespoke long-span roof structure
Diagram icon of a low-rise vault skylight configuration

Low Rise

Diagram icon of a low-rise vault skylight with ventilation

Low Rise with Ventilation

Diagram icon of a mid-rise vault skylight configuration

Mid Rise

Diagram icon of a vault skylight with semi-icicle mullions

Semi-icircle Mullions

Design and
Configuration Options

Glass Skylights

Glass Skylights icon.avif

A refined option for premium projects where finish and visual impact matter most.

Polycarbonate & Acrylic Options

Polycarbonate & Acrylic Options Icon.avif

Durable, lighter-weight materials suited to larger spans and practical project requirements.

Aluminium Framing

Aluminium Framing Icon.avif

Aluminium frames provide a durable, precision-engineered structure with a high-quality powder-coated finish, available in a range of colours to suit specific design requirements.


Materials That Support a More Bespoke System

Vault skylight structure over a swimming pool surrounded by greenery

Choose the Right Configuration for Your Roof

Whether you’re designing a feature space, atrium, or large-span roof, the right vault skylight depends on scale, structure, and architectural intent.
 

Get in touch with Rainbow Skylights to discuss your project and find the ideal configuration for your space.


Installed for Structure, Finish, and Long-Term Performance

Vault skylights are best suited to flat roofs and bespoke roof structures designed to accommodate a larger-span or more design-led rooflight system.

​

Because these skylights are often more bespoke and structurally demanding, installation must carefully resolve support, waterproofing, flashing, roof integration, and the final architectural finish. Good design coordination is essential if the skylight is going to perform well and look fully at home within the roof.

Rows of curved vault skylights installed on a flat commercial rooftop with city buildings

Frequently Asked Questions

  • Vault skylights are often the right fit where the project calls for a longer-span rooflight, a more sculptural roof form, and a stronger architectural daylighting effect.

  • In many cases, yes. Vault skylights are often tailored to the opening, structure, and design goals of the project.

  • It helps to know the size of the opening, the roof type, the intended visual effect, and whether the project requires a highly bespoke solution or a more standardised starting point.

Bring Bigger Daylight Ambitions to Life

Curved vault skylight over an outdoor patio with palm trees and dining tables

Not sure which solution is right for your project? Our team can help you determine the ideal size, configuration, and structural direction before plans are finalised.

bottom of page