Moisture risk evaluation and determination of required measures to avoid mould damage using the Folos 2D visual mould chart

There is an increased interest in and awareness of mould growth damage in buildings. Today’s mould growth models are limited to only presenting the risk of mould growth. They do not take into account underlying factors and other parameters that make it possible to establish necessary measures to limit or avoid the risk of mould growth. This paper presents a chart that can be used to determine these measures, both to reduce the risk of mould growth in buildings and, at the same time, indicate the risk of mould growth. The chart can be based on all known risk models for mould growth. No new mould growth model is presented; only an illustration of how it is possible to use known models in practical moisture safety design processes. The chart can also be used to compare different structural designs, measured and calculated values, and to show how mould growth risk prediction depends on which mould model is used.