Case Study:

Garage CONVERSION – Better late than never!

Main Contractor

Self Build

Project Type

Garage Conversion

Project Value

SuperFOIL SF19 Installed

The Project

Stuart, a builder based in Nottingham, had been planning his garage conversion but was unable to find insulation that suited his needs. He had been given solutions for traditional PIR boards, but he found these too bulky, taking away too much depth on the walls. On top of this, Stuart did not want to use PIR boards due to the fact they were a pain to install, created a huge mess and produced lots of wastage.

The Problem

Stuart needed to achieve a U-value of 0.3 as set by building regulations for his conversion. Due to the size of the room, he did not want to add too much thickness to the walls and did not want to use traditional PIR boards as they were not suitable for the project.

How We Helped

After struggling with traditional rigid foam insulation on a garage conversion, Stuart decided that he needed to find a better alternative to using rigid foam insulation so he contacted SuperFOIL.

This garage conversion required a u-value of 0.30 in the walls. The technical team at SuperFOIL offered Stuart an efficient solution using a single layer of SuperFOIL SF19.

A straight forward construction of,  Timber Batten / SuperFOIL / Timber Batten / Plasterboard was used.

Stuart contacted us once he completed the project to tell us that SF19 was so much easier to install, more cost-effective and thinner overall build-up than his original PIR solution. Stuart was so impressed with SF19 that he said “SF19 was better than using solid insulation because it saves a lot of space and is much less expensive, I just wish I found SuperFOIL sooner!”

Better late than never!

We help 1000's of customers every year

Here are just a few of the comments we've received...

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Loft Conversion

Actually, I bought Superfoil for my small extension and I must say easy to install and it works, room is comfortable better than Kingspan. Now looking at installing an underfloor in my daughter's house. Thanks!

Duncan Walker

Conservatory Conversion

I'm really grateful for all the info you've provided, many thanks. To be honest I didn't think your stuff is as good as it clearly is, and we'll definitely be using it in the future. Can I ask a favour and ask you to calculate two more please?

Carl Bell

Self Build

In the past, I used SF19 for thermal insulation of the roof. I have the best experience. I'm thinking about insulating the house outside wall. As I want to be clear, I will definitely call. Many satisfied customers wish.

Jiri Milfait


We’re delighted with the thermal improvements after fitting Superfoil SF40. The system was clearly and helpfully specified, simple to install and immediately felt warmer, despite this also being the Winter of Beast from the East. It suits our 200 year old house, now heated with a modern, green air source heat pump.

Tim Clements

Senior Building Control Surveyor

Many thanks for all your assistance with this matter, you have been very helpful. The information you have provided has been very useful to one of our customers and I am now more familiar with this type of double fit of SuperFOIL as a suitable method of achieving compliance with The Building Regulations.

Donna Worrell

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