The Best Way to Stop Glass Verandas and Conservatories Overheating
A glass room is one of the most desirable additions to any home. Whether it’s a conservatory, veranda, or modern extension with a glass roof, these spaces flood interiors with natural light and create a seamless connection to the outdoors.However, as the seasons change, what feels like a cosy suntrap in winter can quickly become unbearably hot in summer. Without effective shading, heat builds up rapidly, making the space uncomfortable—and often unusable—during peak hours.
So how can you keep your glass room cool without compromising its aesthetic appeal?
Why Glass Rooms Overheat
Glass structures naturally trap heat due to the greenhouse effect. Sunlight passes through the glazing and warms surfaces inside the room. This heat is then retained, causing temperatures to rise quickly.
While traditional awnings and canopies work well for blocking solar gain before reaching windows and doors, they are far less effective for overhead glazing such as glass verandas and skylights. Their design does not offer the installation flexibility required for glass structures, as they need to be mounted to a wall or steel bridge and require a specific pitch angle.
Modern Solutions: Roof Mounted Awnings
To overcome these limitations, modern shading systems have been developed specifically for glass roofs. One example is our contemporary full-cassette awning systems, the Richmond design.
This system uses guide rails and supporting legs to provide both flexibility and stability in operation. It can be installed in multiple ways, making it suitable for a wide range of glass structures.
The Richmond model can be:
- Mounted beneath a glass roof
- Mounted over a glass roof
- Wall-mounted and supported by ground-fixed legs
Under-Roof MountedÂ
Under-roof systems (often called conservatory roof blinds or skylight blinds) are installed beneath the glass.
They:
- Reduce glare
- Soften incoming light
- Protect furniture and flooring from UV exposure
However, because sunlight has already passed through the glass, these systems are less effective at preventing heat build-up.
Over-Roof Mounted
External shading is one of the most effective ways to control indoor temperature.
Installed above the glass, these systems:
- Block sunlight before it reaches the glazing
- Significantly reduce solar gain
- Help maintain a cooler indoor environment
Modern retractable designs also allow you to adjust shading throughout the day, giving greater control over light and temperature.
Wall-Mounted Systems with Supporting Legs
For larger glass structures with exposed terraces, wall-mounted systems with supporting legs provide a dual-purpose shading solution. They create a comfortable outdoor shaded area while also reducing solar gain through glass walls.Â
By anchoring to both the wall and ground, they:
- Improve stability in exposed, windy locations
- Deliver wide, consistent shading coverage
In fully glazed structures, they can also be fixed to custom steel frames where direct wall fixing is not possible.
A glass room should be a space you can enjoy all year round—not one you avoid in summer.
By choosing our Richmond model and the appropriate installation method that meets your goal most effectively, you can transform your space into a comfortable retreat.
If your goal is passive cooling then the key is simple: stop the sunlight before it becomes trapped heat. With the right approach, your glass room can remain just as inviting in summer as it is in winter.
