I have heard that there were some issues with the moth resistance of some sheep wool insulation?

We understand the treatment used by a competitor during the period 2001 – 2005, although well meaning, was not totally effective.

To reassure you, this method was never used by other European manufacturers, including Black Mountain. Our wool is thoroughly washed before it arrives at our factory and is treated to protect against moths for the life of the product and perform to the same standard as modern carpets and other textiles. Black Mountain has never had a complaint regarding product quality, including moth infestation – a record that we are proud to maintain.

What is the thermal performance of natural insulations in comparison to mineral wool?

Natural insulations have an excellent thermal resistance and comparatively achieve the same conductivity with approximately 10% less material required.

How do natural insulations buffer moisture?

Natural fibre insulations can absorb a significant amount of its weight in moisture without any deterioration in thermal performance. Natural fibres are able to buffer moisture by absorbing water molecules into the core of the fibre and storing them until moisture levels in the external environment decline. Hence they can help prevent the onset of condensation.

Comparatively, man-made mineral fibre insulations are far less capable of managing condensation. Subsequently, exposure to even a small level of moisture can dramatically impact thermal performance.

My son suffers from asthma how can you assure me that natural insulations really improve indoor air quality?
Reducing spikes in condensation helps to reduce the probability of a building developing damp problems and mould growth.

Wool fibres are also unique in their ability to permanently absorb and break down a range of harmful volatile organic compounds emitted from some commonly used building products.

The amino acids in wool react and create a bond with these harmful compounds and prevent them from being re-released back into the internal environment.