Craighall Village - Edinburgh
Case study: Loft and acoustic insulation pilot for low-carbon homes
Project: Craighall Village housing development
Developer: Cala Group Ltd
Insulation product: IndiBreathe Flex and IndiSilence
Scale: Innovative pilot project to explore embodied carbon reduction
Location: Near Edinburgh, Scotland
Project overview
At Craighall Village, near Edinburgh, Cala Group Limited piloted the use of IndiLoft and IndiSilence acoustic roll. The project aimed to evaluate how direct material substitutions can improve energy performance, lower embodied carbon, and enhance site experience for installers.
The products, manufactured locally by IndiNature, provided a safe and practical alternative to conventional insulation, aligning with Cala’s commitment to sustainable construction.
Why IndiBreathe Flex and IndiSilence?
Performance
Improved thermal performance in loft applications
Acoustic roll supports enhanced sound insulation in partitions
BBA certification for IndiBreathe Flex and ISO 9001 quality management support integration into major construction projects
Ease of installation
Comfortable to handle
Free from irritants
Easy to install in a variety of applications
Sustainability
Made in the UK from natural fibres
Significant potential embodied carbon savings compared with conventional products
“Thanks to IndiNature and our Millerhill team for incorporating these innovative and locally manufactured products. As part of efforts to reduce embodied carbon in our homes direct material swaps like this are likely to play a part.
During this project factors such as economic, environmental, health and practical were assessed and we would like to thank the IndiNature team for their support throughout the process.”
Key takeaways
This pilot project demonstrates the role insulation can play in reducing the environmental impact of new homes. By testing IndiNature’s products in real-world construction, Cala Homes showed how direct material substitutions can deliver measurable carbon savings while also improving installer safety and comfort.
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.