How To Insulate A Conservatory In Winter

How To Insulate A Conservatory In Winter
  • Author: Amanda Arnold
  • Posted On: April 18, 2022
  • Updated On: August 21, 2023

Conservatories have been a traditional home addition; they add more room and come in various styles. While they may appear to be outstanding, they frequently have issues with heat retention.

This can leave individuals perplexed about how to heat a room, resulting in concerns with heating bills, room usage, and potentially destructive issues such as moisture.

Conservatories allow us to enjoy our gardens while protecting ourselves from the elements. It’s critical to insulate your conservatory during long, rainy summer days and frigid, bitter winter evenings. We’ll walk you through how to insulate a conservatory roof yourself in this article.

It’s probable that when you were contemplating conservatory ideas, you imagined yourself enjoying the warm sun filtering through the glass roof. Conservatories, on the other hand, are appropriate for all seasons.

What Are The Main Reasons For Conservatory Getting Cold In Winter?

In your conservatory, you’ve probably experienced freezing temps. Because glass is a poor insulator, the conservatory fails to keep any of the heat projected into the building, allowing chilly air to enter the room easily.

Also, because heat rises, most of the heat in your conservatory escapes through the roof. A conservatory is mostly composed of glass, whereas a house is mostly made of bricks and mortar, with only a small fraction of the space made of glass.

The walls keep out the frigid air. A single pane of glass, or a double-pane, does not insulate, and with a double-pane. Thus, there will always be some heat loss.

Conservatories do not provide adequate insulation due to their design. Even though its glass structure is appealing to the eye, it provides little protection from the elements.

Conservatories are generally used as an adjunct to the house rather than a living space, being a draughty and freezing cave in the winter and a stifling prison in the summer.

Ways To Insulate A Conservatory

Replace Old Conservatory Roof With A New Roof

Conservatory roof replacement is a popular and effective method of insulating conservatories, and for a good reason. Because most heat escapes through a conservatory’s roof, erecting a barrier helps limit heat loss.

If you’re concerned about a roofing system losing light, consider adding spotlights, glass panels, or a roof lantern. This is the greatest option if you want your conservatory to look like another room.

Conservatory roofs also adjust the temperature, so your conservatory won’t feel like a greenhouse when hot or cold outside.

Install Solar Control Film

This has topped our list as an innovative and incredibly effective technique for insulating a conservatory. Solar control film is a simple but highly efficient way to extend your time in the conservatory without breaking the bank.

It’s the best insulator there is. These huge stickers assure that you don’t have to sacrifice anything to reach your goals. Conservatory window film works to target and regulate the sun’s rays and extra heat and is the solution to all of your conservatory concerns.

Window film helps you keep your conservatory’s ambiance and sunny atmosphere while also maintaining a reasonable temperature.

Use Blinds And Drapes

Installing shades and roof draping if your budget is limited. In the summer, the blinds will keep the room cooler, but they will have little effect in the winter. You could seek thermal shades, but keep in mind how much glass is present in the structure.

It would help if you also thought about the aesthetics of putting curtains and draping all over your conservatory; it could become enclosed.

Install Underfloor Heating System

Although it is unquestionably the most common method for keeping a conservatory warm, our experts disagree about its effectiveness.

Underfloor heating is primarily advantageous since it is a space-saving solution. The disadvantage of underfloor heating is that it does not provide quick heat and takes some time to achieve a comfortable temperature.

Apart from in the summer, most conservatories feature stone or ceramic floors, cold and uninviting. A radiator-heated conservatory will have more chilly zones than a traditional brick-built addition because heat rises and cold air falls.

Add Traditional Insulating Material

Try lining your conservatory’s roof with typical insulating materials if you’re finding it more of a bother than an asset. Many people like to use a combination of aluminum foil and thermal wadding. Both generating and absorbing heat, these materials are very efficient.

Aluminum foil can insulate a conservatory roof since it acts as a heat reflector. Thermal wadding absorbs heat through air pockets and traps it, insulating your conservatory effectively. This is a good option for homeowners who want to insulate their conservatory in a practical and inexpensive method.

What Will Be The Cost For Insulating A Conservatory Roof?

The estimated cost for insulating a conservatory roof will vary according to the specifications of every roof. It’s worth noting that building a solid roof at the same time as the conservatory will cost around half as much and is the best method to get a year-round space.

The U-value of a lightweight interior roof solution will be lower than that of a solid roof.


Whatever insulation is put, it must be acknowledged that a conservatory will always be less thermally efficient than the rest of your home due to the enormous amounts of glass. It is worthwhile to insulate a conservatory roof, as it is the primary source of both internal and solar heat gain.

Insulating a conservatory roof increases your chances of making your conservatory more functional and pleasurable all year.

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Author: Amanda Arnold

Amanda has been working with ConstructionHow since 2021. Her experience spans over 5 years in the creative niche such as home decor and trends, landscaping, renovations, and custom architectural values. As a home designer expert, she has a keen eye for the latest home improvement trends with accurate facts that readers find impossible to ignore. Being invested in home-building trends is how she has gained her lucrative expertise exploring more to bring a positive ambiance for all homeowners (and even tenants!). Currently, she lives in a beautiful beach home, a source of fascination for her.