Not sure which product you need? Our team can help you choose after learning about your conservatory, your roof type and how you want to use the space.
30,000+ installations
Trusted by homeowners across the UK
Independently tested
C.H.R.I.S® tested at Salford University Energy House 2.0
Nationwide installation teams
Specialist CI Group installers across the UK
Finance options available
Helping you spread the cost of your project
Every conservatory is different. Some homeowners want to improve comfort without changing the outside of the roof. Others want a tiled finish or a brighter orangery-style conversion. CI Group offers three specialist systems so you can choose the level of transformation that suits your conservatory.
C.H.R.I.S® Internal Roof Insulation
est for:
Improving comfort without replacing the external conservatory roof.
What it does:
C.H.R.I.S® is CI Group’s internal conservatory roof insulation system. It is installed beneath your existing roof to help reduce heat loss in winter, reduce overheating in summer, soften rain noise and create a cleaner internal ceiling finish.
Good choice if you want:
A lower-disruption upgrade, no major structural changes in most cases, and a conservatory that feels more usable throughout the year.
ThermaTile® Conservatory Roof Conversion
Best for:
Homeowners who want the look and feel of a lightweight tiled conservatory roof.
What it does:
ThermaTile® combines a lightweight composite slate roof finish with CI Group’s specialist insulation approach, helping turn an existing conservatory into a more comfortable, stylish room that better complements the rest of the home.
Good choice if you want:
A more substantial roof transformation, an external tiled appearance and a conservatory that feels more permanent.
SkyTherm® Orangery-Style Roof
Best for:
Creating a brighter, more premium living space with a roof lantern or flat rooflight.
What it does:
SkyTherm® is CI Group’s orangery-style conservatory roof conversion. It combines the C.H.R.I.S® insulation system with a flat roof, roof lantern or flat rooflight to improve comfort while keeping natural light as a key feature.
Good choice if you want:
An orangery-style finish, extra daylight, a more architectural look and a room that feels closer to a home extension.
Many conservatories are difficult to enjoy all year round. They can overheat in direct sun, feel cold during winter, become noisy in rain and feel disconnected from the rest of the home. CI Group’s conservatory roof systems are designed to help solve these problems by improving comfort, usability and the overall feel of the room.
Independently tested conservatory roof insulation
At the centre of CI Group’s product range is C.H.R.I.S®, our specialist conservatory roof insulation system. It was developed to improve the comfort and usability of conservatories by controlling heat transfer through the roof.
C.H.R.I.S® has been independently tested by Salford University’s Energy House 2.0, with testing confirming improved thermal performance, energy efficiency and year-round comfort.
Comparison Table

Do you own a commercial property with an unusable conservatory?
Conservatories are not only used in homes. Nursing homes, pubs, hotels, golf clubs, restaurants and leisure venues often rely on conservatory spaces for dining areas, lounges, guest seating and additional usable floor space. When those rooms become too hot, too cold or uncomfortable, they can limit how often the space can be used.
CI Group works with commercial property owners and managers to improve conservatory comfort, usability and appearance through specialist roof insulation and roof conversion systems.
How your conservatory transformation works
Trusted by homeowners across the UK
What is the difference between C.H.R.I.S®, ThermaTile® and SkyTherm®?
C.H.R.I.S® is an internal conservatory roof insulation system installed beneath the existing roof. ThermaTile® is CI Group’s lightweight tiled conservatory roof conversion. SkyTherm® is an orangery-style roof conversion with a roof lantern or flat rooflight.
Which option is best if I do not want to change the outside of my conservatory?
C.H.R.I.S® is usually the most suitable option if you want to improve comfort without changing the external roof finish.
Which option is best if I want a tiled conservatory roof?
ThermaTile® is designed for homeowners who want a lightweight tiled roof appearance combined with specialist insulation.
Which option is best if I want more natural light?
SkyTherm® is designed for customers who want an orangery-style roof with a lantern or flat rooflight, helping maintain natural light while improving comfort.
How long does installation take?
C.H.R.I.S® normally takes less than a day to install. ThermaTile® and SkyTherm® are typically completed within 2-3 days depending on the size and complexity of the project.
How much will my conservatory roof project cost?
Every quote is tailored to the conservatory. The final cost depends on the size, style, structure, roof material, glazing type and chosen CI Group system. A no-obligation quote allows the team to assess your conservatory properly.
Do you work on commercial conservatories?
Yes. CI Group supports commercial conservatory projects for properties such as nursing homes, pubs, hotels, golf clubs, restaurants and leisure venues.
Create the extra room you always wanted