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February 1, 2025Conservatory Roofs are very commonly too hot in summer, and freezing cold in the winter. Our quilted Insulation system are proven to create an ambient temperature all year round.
This guide will show you how to effectively insulate your conservatory for use all year round using a conservatory roof insulation Kit.
There are a few types of Multifoils/insulation quilts which can be used. These are proven to save cost, space & labour time vs Traditional Insulation (Kingspan & Celotex).
Read our step by step guide below for further information and installation methods.

Installing ThermaFrost (Glass Only)
If your Conservatory has a glass roof, we would suggest the use of a ThermaFrost Window Tint. This material will create a white opaque finish which will add privacy and also reduce sun glare by around 30%. Please note this cannot be used on Polycarbonate Conservatory Roof panel.

Installing Timber Battens
Install 25mm wooden battens onto the existing uPVC and Aluminium framework. We recommend the using 50mm Self Tapping Screws. We would suggest to check the depth of your conservatory roof rafters as the screws are only designed to go part way through the aluminium frame.

Stapling The Multifoil To Battens
Staple your conservatory insulation quilt to the underside of the wooden battens. This will have then created an air cavity between the insulation quilt and the Polycarbonate/Glass Roof. We recommend stapling at 300mm intervals and using a Heavy Duty Staple Gun and 14mm Staples.

Taping and Sealing Insulation
Tape and seal all overlaps, cuttings and the perimeter with a ThermaSeal Foil Joining Tape (75mm x 50m roll). We recommend going overkill with the Foil Tape as this will allow the insulation to act as a high performing vapour control layer.

Installing Counter Battens
Install 25mm counter battens beneath the insulation, screwing into the first set of battens. Most commonly these battens are installed horizintally. We also recommend installing battens around the perimeter too which the internal boarding will be fixed to.

Install Internal Finish
To complete the conservatory insulation installation you can now fit either a plasterboard or more commonly a uPVC Cladding. This can be screwed directly to the underside of the counter battens. If installing Plasterboard we recommend not to use a foil backed board and also to use a 9mm rather than 12.5mm board, as this will help keep the weight to a minimum.
If you would like your conservatory roof insulation installed by a team of professionals then request a free no obligation quote

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Fully Insulated System
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FAQ`s by customers looking to insulate their consvatory.
Will there be any changes to the exterior of my conservatory?
No, we don’t need to do anything to the exterior structure and the existing glass or polycarbonate roof will remain in place.
Will we lose any headroom in the conservatory?
Virtually none. We carefully follow the contours of your conservatory roof and the insulation itself is very thin.
Will the shape of my conservatory roof change?
As stated above, very little will change. We always carefully follow the contours of your existing conservatory roof.
Will the installation cause condensation?
No. As part of the installation we install ventilation gaps above the insulation. The insulation barrier is then closed, eliminating condensation rather than causing it.
Do I need planning permission?
As the exterior of the conservatory is not being changed, planning permission is not required
How long will it take to install the conservatory roof insulation?
Installations are usually completed within 1-2 days, but very large conservatories may take longer. We advise you of the actual time requirement prior to placing your order.
Will we lose any light once it is fitted?
Covering a clear roof will of course reduce the amount of light entering the room, but since the walls are virtually all glass, there will still be more than ample light. More importantly, the unpleasant glare factor will be eradicated. With a polycarbonate roof, the difference will be even less noticeable and in the evenings, it will actually be lighter once painted white.
Will it change the look from the outside of the conservatory?
No. Where necessary, semi-opaque film is applied to a glass roof, but this is rarely necessary on a polycarbonate roof.
Is this a messy job? Will you disrupt my house?
We have skilled teams of fitters and plasterers who will completely sheet and protect the work area. Then they seal the work area from the rest of your home. At completion, they leave your conservatory clean and tidy and remove all waste materials.
Do you fit anywhere in the UK?
Yes of course. We are based in Lancaster, Lancashire but cover the whole of the UK