Carrying out a responsible retrofit to a traditionally constructed, or historic building (originally built with lime and vapour-open brick, stone, timber or earth), means using only vapour-permeable insulations and finishes. In this way the original fabric performance is maintained, and the risk of moisture being trapped in the wall is eliminated. When choosing a material, it is important to consider what is most important for your specific project: affordability, thermal performance, or sustainability credentials, such as embodied carbon in the material.
Carrier Boards (Retrofit)
Natural building envelopes are typically completed with a vapour-permeable finish,...
Flexible Insulation (Retrofit)
There are a number of flexible natural bio-based insulation products...
Hempcrete, or hemp-lime, is an insulating material formed by mixing...
Precast hempcrete blocks have become more popular in recent years,...
Insulating lime basecoats
There are now several lime plaster products on the market which contain...
Insulation Boards (Retrofit)