Under ideal circumstances any building wall should be constructed with increasing levels of vapour permeability as you move towards the outer face of the construction.

Due to an increasing need to minimise wall thicknesses and the use of higher performance materials with limited vapour permeability, the probability condensation forming in the wall construction increases which can be disastrous from a durability, mould growth, and damp inner wall perspective.

Wintech have successfully completed modelled analysis using weather tape data and measured inner building psychometric conditions together with local breeches in vapour control layers to reflect as built constructions to accurately predict moisture build-up. Vapour Transmission & Dew Point Analysis is a very valuable tool in mitigating risk in the design process and can be used to help inform the remediation of problem constructions.