Custom Skylights in Saudi Arabia: A Practical Design Guide

A skylight can change the character of a building by bringing daylight into spaces that would otherwise depend heavily on artificial lighting. But in Saudi Arabia, a successful rooflight is not simply a glass opening in the roof. The design has to balance daylight, solar heat, glare, structural movement, waterproofing, drainage, safety glazing, and long-term access for maintenance.

For architects, consultants, contractors, and developers, the right skylight therefore starts with the roof condition and the purpose of the space—not with a shape chosen from a catalogue. Rounuq Almsar’s façade and glazing service includes custom skylights for both sloped and flat roofs, alongside curtain wall and structural glazing solutions. This makes skylight design part of a wider building-envelope conversation rather than an isolated decorative element.

This guide explains how custom skylights are planned, what materials and configurations are commonly considered, how Saudi conditions affect the specification, and what to include when requesting a quotation or technical proposal.

What Are Custom Skylights?

Custom skylights are roof-mounted daylighting systems designed around a project’s opening, geometry, structural requirements, glazing specification, and architectural intent.

Britannica defines a skylight as a roof opening covered with transparent or translucent material to admit daylight. Unlike a standard off-the-shelf unit, a bespoke skylight can be developed for a particular roof pitch, span, shape, frame arrangement, glass specification, drainage detail, and connection to the surrounding roof or façade.

The word “custom” does not simply mean unusual. It means the system is coordinated with the building.

A project may require custom skylights with a simple flat-roof configuration, a sloped glazed opening, a linear rooflight, a larger atrium system, or another geometry dictated by the architecture. The final configuration of custom skylights should be selected after considering the opening size, orientation, surrounding surfaces, structural movement, solar exposure, and required maintenance access.

Why Skylight Design Matters in Saudi Arabia

The value of a skylight is easy to understand: it introduces daylight from above. The harder question is how to admit useful daylight without creating excessive heat, glare, water-ingress risk, or difficult maintenance conditions.

Saudi projects require particular attention to solar exposure and the performance of the complete roof opening. The Saudi General Building Code (SBC 201) includes dedicated provisions for sloped glazing and skylights, as well as safety glazing, so a skylight should be treated as a building component with technical requirements rather than only an aesthetic feature.

The local environment also changes the practical priorities:

• Strong solar exposure can increase heat gain and glare if the glazing and geometry are poorly selected.
• Dust can increase cleaning requirements and make drainage and access details more important.
• High temperatures can make thermal performance a major design consideration, which is why the Saudi building energy code sets envelope performance requirements.
• Coastal locations such as Jeddah, Dammam, Jubail, and Yanbu can introduce humid, salt-laden conditions that affect exposed metalwork and hardware.
• Roof movement and thermal expansion should be considered when coordinating frames, seals, connections, and adjacent roof construction.

The objective is not to eliminate sunlight. It is to control daylight so it improves the space without creating a bigger building-performance problem.

Common Skylight Configurations

There is no single best configuration for every building. The geometry should follow the roof, the interior space, and the desired daylight pattern.

These are design categories rather than fixed product specifications. The appropriate solution depends on the project drawings, opening dimensions, structural system, glazing requirements, and environmental exposure.

Choosing Glazing for a Skylight

Glazing selection is one of the most important decisions in custom skylights. The frame may be visually dominant, but the glass or other transparent material controls much of the daylight and solar performance.

For a project team, useful questions include:

• How much visible daylight is actually required?
• Is direct solar exposure reaching the glazing for long periods?
• Is glare likely to affect occupants?
• What safety-glazing requirements apply?
• What thermal performance is required for the building?
• How will the glazing be cleaned and replaced if necessary?
• Does the glass specification match the roof and façade performance strategy?

Safety should be considered separately from appearance. The Saudi Building Code has a dedicated section for safety glazing, and its provisions for sloped glazing and skylights should be reviewed during technical design.

For some projects, laminated or tempered safety glazing may be appropriate, but the exact glass build-up should not be selected from a generic article. It should be confirmed against the project’s structural, safety, thermal, acoustic, and regulatory requirements.

Frame Materials and Structural Coordination

A skylight is a system, not just a sheet of glass. The supporting frame has to transfer loads to the surrounding structure while maintaining the required geometry and weather performance.

Aluminum is commonly considered for glazed architectural systems because it can provide a relatively lightweight framing solution and can be finished to suit the design. Steel may be appropriate when larger structural spans, special geometries, or architectural steelwork are involved.

The important point is coordination.

Before fabrication, the design team should establish:

• The roof opening and surrounding structure.
• Support locations and connection strategy.
• Drainage paths and waterproofing interfaces.
• Glazing dimensions and tolerances.
• Thermal movement allowances.
• Access requirements for inspection and cleaning.
• Interfaces with ceilings, insulation, membranes, and adjacent façade elements.

Rounuq describes its glazing capability as including curtain wall systems, structural glazing, and bespoke skylights for sloped and flat roofs, with emphasis on structural safety and thermal efficiency.

Solar Heat, Daylight, and Glare

A common design mistake is to treat “more daylight” as automatically better.

A large transparent roof opening can introduce substantial solar radiation into a space. In a Saudi project, the design team should therefore consider orientation, glazing performance, shading (for example, perforated metal screens above or below the glass), roof geometry, and the relationship between the skylight and occupied areas.

The best custom skylights are often the ones that deliver useful daylight where it is needed rather than the ones with the largest glazed area.

A practical design approach is to ask:

• Where does daylight need to reach?
• At what times is direct sun likely to enter?
• Will occupants look directly toward the bright glazing?
• Is there a secondary shading layer, such as perforated metal panels?
• Can the skylight be positioned or shaped to distribute light more evenly?
• Does the building’s cooling strategy account for the glazed roof area?

The Saudi Building Code material available through the Saudi General Building Code includes fenestration performance provisions involving U-values and solar heat gain coefficient (SHGC), including requirements for certain skylight configurations. The exact requirement depends on the applicable code provisions and project conditions, so the project team should verify the relevant table during design.

Waterproofing and Drainage: The Detail That Cannot Be Ignored

A skylight creates an opening in a roof, so waterproofing deserves as much attention as the visible architectural finish.

Technically attractive custom skylights can still fail if water is allowed to collect around the frame, if flashing is poorly coordinated, or if drainage paths are blocked.

When reviewing a skylight detail, look for:

• Positive drainage away from vulnerable joints.
• Proper flashing and membrane interfaces.
• Compatible sealants and gaskets.
• Correct frame slopes where required.
• Accessible drainage points.
• Coordination with roof insulation and waterproofing.
• Clear responsibility for waterproofing at interfaces between trades.

This is especially important where a skylight meets another roof system. The best results come from resolving the complete junction in drawings before fabrication rather than attempting to solve the interface on site.

Thermal Movement and Long-Term Performance

Large roof glazing is exposed to temperature changes and solar loading. Frames, seals, fasteners, and adjacent construction all need to accommodate movement within the system’s design limits.

This matters because custom skylights can look perfect when installed but perform poorly later if movement, drainage, or sealant compatibility was not considered.

For a project specification, ask the design and fabrication team to clarify:

• Frame material and finish.
• Glass specification.
• Structural support method.
• Movement and tolerance allowances.
• Weather-sealing strategy.
• Drainage arrangement.
• Replacement access.
• Cleaning and inspection provisions.

These details are more useful for comparing proposals than simply comparing the visual shape of two skylights.

Where Custom Skylights Work Best

Custom skylights can be useful in many building types, but they are particularly valuable where daylight is part of the architectural experience.

Atriums and Entrance Halls

A roof opening can make an entrance or atrium feel more open while providing daylight from above. The glazing area and solar-control strategy should be coordinated with the size and orientation of the space.

Commercial Interiors

Retail environments, offices, hospitality spaces, and other commercial interiors can use daylight to create visual hierarchy and reduce dependence on artificial lighting during suitable periods.

Hospitality and High-End Interiors

Hotels and other hospitality environments often use skylights as architectural focal points. Here, the frame geometry, glazing appearance, lighting integration, and interior finishes, such as stainless steel cladding around the opening, may need to be coordinated from the beginning.

Residential and Villa Projects

A smaller rooflight can introduce daylight into stair halls, internal courtyards, bathrooms, kitchens, or other spaces that have limited access to exterior walls. The appropriate skylight system depends heavily on the roof construction and privacy requirements.

Covered Walkways and Transitional Spaces

Linear skylight arrangements can help illuminate circulation areas where side windows are limited or where the architectural concept calls for controlled overhead daylight. On open-air routes, the same idea often works alongside steel pergolas and canopies that provide partial shade.

Custom Skylights vs Standard Skylights

The decision is not simply “custom is better.” Standard systems can be efficient when the opening, dimensions, performance requirements, and appearance fit an established product.

Custom skylights become more attractive when the project has constraints that a standard unit cannot easily accommodate.

The right choice depends on the project. A simple opening does not necessarily justify a bespoke system, while a major architectural roof feature may benefit from one.

What to Consider Before Ordering Custom Skylights in Saudi Arabia

Before requesting a quotation, prepare enough information for the fabricator to understand the actual project.

At minimum, provide:

• Architectural drawings.
• Roof plans and sections.
• Opening dimensions.
• Roof construction details.
• Desired skylight geometry.
• Approximate location and orientation.
• Glass performance requirements, if already specified.
• Structural information where available.
• Waterproofing details.
• Interior finish requirements.
• Project location.
• Required delivery and installation scope.

For Saudi projects, the location matters because environmental exposure can affect the design discussion. A coastal project may require different corrosion considerations from an inland project, while solar exposure and roof conditions can vary significantly between buildings.

If a project requires regulated products or conformity documentation, the procurement team should verify the applicable requirements rather than assuming every skylight component follows the same certification route. SASO’s certificates of conformity guidance explains that conformity assessment and certificates depend on the products and technical regulations to which they are subject.

How to Evaluate a Skylight Quotation

Price alone can make two proposals look comparable when they are not.

When comparing quotations for custom skylights, check whether each one clearly identifies:

• Skylight dimensions and geometry.
• Frame material and finish.
• Glass type and performance.
• Structural support and connections.
• Flashing and waterproofing interfaces.
• Drainage provisions.
• Installation scope.
• Testing or inspection requirements.
• Access for cleaning and maintenance.
• Warranty terms and exclusions.

Also check what is excluded. A low initial quotation may omit structural steel, roof modifications, waterproofing, access equipment, or finishing work that another supplier has included.

For commercial projects, the quotation should ideally be based on coordinated drawings and a clear scope rather than a rough area-only estimate.

Cost Factors for Custom Skylights in Saudi Arabia

There is no responsible single price per square metre for custom skylights without project information.

The final cost can change substantially according to:

• Overall area and span.
• Frame material.
• Glazing specification.
• Glass thickness and safety requirements.
• Thermal and solar-control performance.
• Structural complexity.
• Roof modifications.
• Waterproofing and flashing details.
• Finishes and coatings.
• Access requirements.
• Installation conditions.
• Project location and logistics.
• Quantity and repetition of the design.

For Saudi buyers, quotations are normally easier to compare when the supplier is given the same drawings and technical requirements. If a quotation is subject to VAT, the current standard VAT rate in Saudi Arabia is 15% for taxable supplies.

Do not compare two skylight prices until you know whether both proposals include the same scope.

Maintenance and Cleaning Considerations

Custom skylights should be designed with future maintenance in mind.

Dust, airborne particles, water marks, and environmental deposits can reduce the visual benefit of glazing over time. A difficult-to-access skylight can also turn routine cleaning into a costly operation.

During design, consider:

• How the external glass will be cleaned.
• Whether safe access is available.
• How drainage channels can be inspected.
• Whether seals and gaskets can be accessed when required.
• How damaged glazing could be replaced.
• Whether the roof system provides safe maintenance routes.

Custom skylights that look excellent on opening day but are difficult to maintain are not necessarily good long-term solutions.

Common Skylight Design Mistakes

Several problems can be avoided before fabrication.

• Choosing the shape before solving the roof interface. The geometry should follow a coordinated structural and waterproofing solution.
• Maximizing glass area without checking solar performance. More glazing can mean more heat and glare. Daylight quality matters more than raw glazed area.
• Treating waterproofing as an installation detail. The roof opening and surrounding membrane should be coordinated in the design.
• Ignoring cleaning access. A visually impressive skylight can become a maintenance problem if the external surface cannot be reached safely.
• Comparing quotations by area only. Glass, frame, structure, drainage, flashing, installation, and access can all change the actual project cost.
• Leaving safety requirements until the end. Glazing and roof design should be reviewed against the applicable Saudi Building Code provisions during technical design, not after fabrication has started.

A Practical Design Workflow

Like most bespoke metal fabrication projects, a reliable skylight project can be organized into a clear sequence:

1. Define the purpose. Decide whether the priority is daylight, architectural expression, ventilation, or a combination.
2. Review the roof. Confirm the opening, roof build-up, structure, waterproofing, and surrounding finishes.
3. Develop the geometry. Select a configuration that fits the space and roof.
4. Coordinate glazing. Review safety, thermal, solar, acoustic, and visual requirements.
5. Resolve the interfaces. Detail drainage, flashing, seals, supports, and adjacent construction.
6. Review the Saudi requirements. Confirm applicable Saudi Building Code provisions and product conformity requirements.
7. Prepare coordinated drawings. Resolve dimensions and connections before fabrication.
8. Fabricate and inspect. Maintain dimensional and finish control through production.
9. Install and check. Verify alignment, sealing, drainage, and interfaces on site.
10. Plan maintenance. Establish a practical approach to cleaning, inspection, and future replacement.

The workflow is more important than choosing a visually impressive skylight from an image. A good design survives the transition from concept to roof opening to finished interior.

Frequently Asked Questions

Are custom skylights suitable for the Saudi climate?

Yes, they can be suitable when the complete system is designed for the project’s solar exposure, thermal requirements, waterproofing, structural conditions, and maintenance needs. The glass and framing should be selected as part of the building-envelope design rather than as an isolated feature.

What is the difference between a skylight and a rooflight?

The terms are often used interchangeably, although “rooflight” can describe a broader range of roof daylighting systems. In project documents, the important point is to define the geometry, glazing, frame, structural support, and performance requirements clearly.

Can custom skylights be used on flat roofs?

Yes. Custom skylights can be designed for flat roofs as well as sloped roofs. The roof structure, drainage, waterproofing, support details, and desired geometry determine the appropriate configuration.

Which glass is best for a skylight?

There is no universal best glass for custom skylights. The selection depends on safety, thermal performance, solar control, daylight, acoustic requirements, structural loading, and the project’s applicable specifications and code requirements.

Do skylights make a building hotter?

They can increase solar heat gain if they are poorly designed or use unsuitable glazing. A well-specified system considers solar exposure, glass performance, shading, orientation, and the building’s cooling strategy.

How should a skylight be maintained?

Maintenance normally includes cleaning the glazing, inspecting drainage paths and seals, checking accessible connections, and addressing damage or water-ingress issues promptly. The access method should be considered during design.

What should I include when requesting a skylight quotation?

Provide roof plans, sections, opening dimensions, project location, desired geometry, available structural information, glazing requirements, waterproofing details, and the required installation scope. Better project information produces more comparable quotations.

Does Saudi Building Code apply to skylights?

The Saudi General Building Code contains provisions addressing sloped glazing and skylights and also includes safety-glazing requirements. The applicable provisions should be reviewed for the specific building and system during technical design.

Conclusion

Custom skylights should be designed as part of the roof and building envelope, not added as a glass feature after the main design is complete. The strongest solutions balance daylight with solar control, structural performance, waterproofing, safety, thermal performance, and practical maintenance.

For projects in Saudi Arabia, that balance becomes especially important because solar exposure, dust, temperature, and—in coastal areas—salt-laden humidity can influence material selection and long-term performance.

Rounuq Almsar provides bespoke skylight solutions for sloped and flat roofs as part of its façade and glazing capabilities, alongside curtain wall and structural glazing systems. If your project is still at the design or coordination stage, you can review Rounuq’s façade and glazing solutions or contact the team through the Rounuq Almsar website with your drawings and project requirements.