The Alliance for Sustainable Building Products has released a comprehensive new guide titled An Introduction to Natural Fibre Insulation (July 2025). This digital resource, published by the ASBP’s Natural Fibre Insulation Group, offers architects, specifiers, contractors, retrofit specialists and homeowners an authoritative overview of natural insulation materials like wood fibre, hemp, sheep’s wool, straw, flax, and recycled cellulose. The guide explains not only thermal performance, but also acoustic benefits, fire behaviour, moisture control and health advantages—demonstrating why these materials are increasingly central to sustainable building practice.
Why does the Guide Matter? Natural fibre insulation has emerged as the fastest‑growing segment of the UK insulation market, driven by heightened awareness of embodied carbon, occupant comfort, indoor air quality and retrofit suitability—especially in traditional buildings. The guide helps users look beyond U‑values to consider broader performance metrics such as breathability, condensation control and overall well‑being.
To view, download and explore the guide, please follow the link below:
To view Ty-Mawr’s range of insulation products such as sheep’s wool and wood fibre boards please follow the link below:
