how to keep a conservatory cool
How to Keep a Conservatory Cool in Summer (7 Real Fixes)
Need advice on how to keep a conservatory cool? Southside Better Roofs fits SupaLite warm roofs across Plymouth, Devon and Cornwall. Call 07703 607365.
Enjoying Your Conservatory: How to Keep a Conservatory Cool in Summer
Conservatories are wonderful additions to any home, providing extra space and a connection to your garden. However, when summer arrives, many homeowners find their conservatories becoming unpleasantly hot, turning what should be a relaxing haven into an unbearable greenhouse. The good news is there are several effective ways to tackle this common problem and reclaim your conservatory even on the warmest days.
Key takeaways
- ✅ Excessive heat often stems from traditional polycarbonate or glass roofs.
- ✅ Good ventilation and shading options can offer temporary relief.
- ✅ Replacing your conservatory roof with an insulated system provides a long-term solution.
- ✅ Consider the benefits of a SupaLite™ insulated warm roof for year-round comfort.
Understanding Why Conservatories Get So Hot
The primary culprit behind an overheating conservatory is often its original roof, typically made from polycarbonate or standard glass. These materials are excellent at letting sunlight in, but not so good at insulating against heat build-up. Sunlight streams through, warming the air and surfaces inside, and without proper thermal barriers, that heat gets trapped. It's like parking your car in direct sunlight with the windows up – the temperature quickly soars. This effect is compounded by large expanses of glazing on the walls, which also contribute significantly to solar gain.
This means that even with doors and windows open, the relentless sun can make your conservatory feel stifling. Addressing the roof, which is the largest surface exposed to direct sunlight, is often the most impactful step towards a cooler space.
1. Boost Your Ventilation
One of the simplest and most immediate ways to reduce heat is to improve airflow. Hot air rises, so having vents or windows higher up will allow heat to escape more effectively.
- Opening windows and doors: This sounds obvious, but ensuring cross-ventilation by opening windows on opposite sides of the conservatory (and even the adjoining house door) can create a pleasant breeze.
- Roof vents: If your conservatory has roof vents, make sure they are fully operational and open them wide.
- Ceiling fans: Installing a ceiling fan can help circulate the air, making the room feel cooler through the "wind chill" effect, even if it doesn't actually lower the temperature much.
- Extractor fans: For conservatories that are particularly prone to dampness or stagnant air, a small extractor fan can help pull hot, humid air out.
While ventilation is helpful, it’s often a band-aid solution rather than a cure for intense summer heat, especially if the sun is relentlessly beating down on a traditional roof.
2. Strategic Shading Solutions
Shading is essential for blocking solar gain before it even enters your conservatory. There are several options available, ranging in effectiveness and aesthetic appeal.
- Blinds: Conservatory blinds, whether for the roof or side windows, are a popular choice. They come in various styles, including pleated, Venetian, and roller. Lighter colours are best for reflecting heat.
- External shading: Awnings or sail shades fitted outside the conservatory are particularly effective as they stop the sun's rays from even reaching the glass. This prevents the heat from penetrating the structure in the first place.
- Internal curtains: Thick, light-coloured curtains can also help, though they might make the room feel smaller and block light.
Here's a quick comparison of some popular shading methods:
| Shading Method | Pros | Cons |
|---|---|---|
| Internal Blinds | Aesthetically pleasing, easy to operate | Heat still enters the room, can be costly |
| External Awnings | Highly effective at blocking heat | Can be expensive, may require planning |
| Window Film | Reduces glare and UV, relatively subtle | Limited heat reduction, can be tricky to apply |
3. Reflective Window Films
Specialised window films can be applied to the glass panes of your conservatory. These films are designed to reflect a significant portion of the sun's heat and UV rays, while still allowing light through. They come in various tints and levels of reflectivity. While they won't completely eliminate heat, they can make a noticeable difference and also help reduce glare, making your conservatory more comfortable for reading or watching TV during sunny periods. These films are usually a DIY-friendly option but professional installation can ensure a bubble-free finish.
4. Consider a SupaLite™ Insulated Warm Roof System
For a truly transformative and permanent solution to "how to keep a conservatory cool in summer," replacing your old conservatory roof with an insulated system is by far the most effective route. Here at Southside Better Roofs, we exclusively fit the SupaLite™ insulated warm-roof system, which dramatically improves thermal performance.
Unlike glass or polycarbonate, a SupaLite™ roof is a lightweight, fully insulated tiled roof that mimics the structure of a traditional extension. It's built with multiple layers of high-performance insulation, designed to keep heat out in the summer and in during the winter. This means your conservatory will maintain a much more stable and comfortable temperature year-round. It's a key upgrade for anyone considering a conservatory roof replacement for improved comfort. Many of our customers in areas like conservatory roofs in Plymouth find this to be the ultimate solution.
5. Planting for Shade
Strategically placed plants can offer natural, eco-friendly shading. Deciduous trees or climbing plants trained over a pergola near your conservatory can provide excellent shade in summer when they are in full leaf, but allow warming sunlight through in winter once their leaves have fallen. Consider planting a jasmine or wisteria to grow over a structure adjacent to your conservatory; not only will it provide shade, but a beautiful scent too!
6. Upgrade Your Glass
If replacing the entire roof isn't an option right now, consider upgrading your conservatory's glass. Modern glazing technology, such as low-emissivity (low-E) glass or solar control glass, can significantly reduce solar heat gain compared to older, standard double-glazing. This type of glass has a special coating that reflects heat, similar to window film but integrated into the glass unit itself. It’s a worthwhile investment if you’re looking to make your conservatory more thermally efficient and creates a much more pleasant [warm roof conservatory] environment for you and your family.
Common mistakes to avoid
- Ignoring ventilation: Thinking that just opening one window will be enough to cool down a large conservatory.
- Dark internal blinds: Using dark-coloured blinds or curtains inside, which absorb heat and radiate it into the room. Light colours are much better.
- Portable air conditioners as a sole solution: While they can offer temporary relief, they consume a lot of energy and don't address the root cause of the heat problem.
- Neglecting the roof: Focusing only on side windows and neglecting to address the massive heat gain coming through the roof. This is where most heat enters and escapes.
- Putting off a permanent fix: Continually trying quick fixes rather than investing in a long-term solution such as insulated tiled conservatory roofs which offer guaranteed comfort.
Frequently asked questions
Will a new roof make my conservatory too dark?
Not at all. While an insulated tiled roof won't be transparent like glass, many include options for roof lights or Velux windows to ensure plenty of natural light still floods into your conservatory and the adjoining room.
How long does a conservatory roof replacement take?
A SupaLite™ conservatory roof replacement is surprisingly quick. Most installations are completed within a few days, minimising disruption to your home.
Do I need planning permission for a new conservatory roof?
In most cases, replacing a glass or polycarbonate roof with a lightweight, insulated tiled roof like SupaLite™ falls under permitted development rights and does not require planning permission. However, we always recommend checking with your local authority, and we can guide you through this process.
Is an insulated roof hot in summer and cold in winter?
No, quite the opposite! The advanced insulation in a SupaLite™ warm roof is designed to keep your conservatory cool in summer by reflecting heat away, and warm in winter by retaining heat inside. It creates a truly all-year-round usable space.
If you're tired of your conservatory being too hot to enjoy in summer (or too cold in winter!), let's chat about how a SupaLite™ insulated warm roof can transform your space. We offer free, no-pressure surveys to discuss your needs and provide a tailored quote. Our lead time is typically 4–6 weeks, though sometimes we can get started in as little as 2 weeks. Prices for a complete insulated roof replacement start from £6,000, and you’ll benefit from two 10-year insurance-backed guarantees covering both the product and our workmanship. Call us on 07703 607365 today to find out more.
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