Holy Trinity’s Airtightness testing

Last year, SBUK member Dr Judith Thornton wrote a paper on Airtightness, of which we referenced here: https://strawbalebuildinguk.com/airtightness-and-natural-building-materials-by-judith-thornton

Richard Dormandy has now made short videos in which he too refers to Airtightness on his group’s Holy Trinity Tulse Hill Straw Bale build.

What does Airtightness mean and how does it affect the performance of your building?

Watch all of The Holy Trinity videos here