Bearsden – post-war home
Case study: Room-in-roof insulation retrofit for comfort and efficiency
Project: Post-war home, room-in-roof insulation
Insulation product: IndiTherm
Installer: Insulation Installers Scotland
Scale: Single-family home retrofit
Location: Bearsden, Scotland
Project overview
This post-war property in Bearsden suffered from cold, draughty upstairs rooms, leaving the home uncomfortable and inefficient.
The solution was to install IndiTherm, a natural fibre insulation designed to combine thermal performance with effective moisture management - a key challenge in room-in-roof retrofits.
Why IndiTherm?
Performance
Improved thermal comfort in cold room-in-roof spaces
Designed for breathability, helping manage moisture risk in roof spaces
Ease of installation
Flexible and easy to install, even in tight spaces common in retrofit roofs
Reliable product consistency ensures smooth application
Healthy and soft to touch for installers
Sustainability
Made in the UK from natural fibres
Supports a lower-carbon approach to retrofit insulation
“We love working with IndiNature insulation products.
The quality and consistency of the material combined with the ease of installation, excellent thermal performance and moisture management qualities makes it an easy choice to specify for a wide variety of insulation projects.”
Results
Energy performance
EPC energy efficiency rating improved from Band D (56) → Band D (66) - now above the Scottish national average (61)
EPC environmental impact rating improved from Band D (58) → Band D (68)
Roof element upgrade
Pitched roof: 1 star → 5 stars (most efficient)
Roof rooms: 1 star → 4 stars (good)
Financial savings
Estimated savings of £1,536 over 3 years following installation
Homeowner feedback
“Living so close to Glasgow Airport, the noise was a constant headache, especially since we had zero insulation in our rafters and roof. Installing IndiTherm has been a game-changer. Our rooms are now noticeably quieter, creating a much more peaceful living environment. Beyond the soundproofing, the rooms feel much cosier and we don’t have to put the heating on quite so much. IndiTherm has delivered on both comfort and energy savings - we couldn't be happier with the result!”
Key takeaways
This project shows how IndiTherm can transform the performance of older housing stock.
By addressing thermal comfort and moisture management in one solution, the installation not only improved ratings on the Energy Performance Certificate but also delivered tangible comfort and potential cost savings for the homeowner.
Ready to specify?
Our technical team can provide:
Technical guidance for social housing retrofit
Product samples
Thermal calculations
Surface and interstitial condensation risk analysis*
Advice on compatible materials and construction systems
*Condensation risk analysis is carried out using the Glaser method and carried out under BS EN ISO 13788.