Do walls actually breathe?
It is common to hear that walls need to breathe to control moisture and that filling stud cavities with insulation might hinder the passage of air and moisture inside the wall. Is this right?
BRANZ warmer, drier, healthier buildings
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Retrofitting paperless walls
By Mark Bassett – 1 December 2012, Build 133, Feature article
BRANZ is often asked whether adding insulation to walls built without building paper changes the moisture performance of the wall in any way. A research project is providing some answers.
Moisture balance
By Malcolm Cunningham – 1 December 2012, Build 133, Feature article
How much ventilation, heating and insulation is required to avoid condensation and mould? The new moisture tab in BRANZ’s online energy calculator, ALF 3.2, has the answers, but how does it work?
