The Glaser method as detailed in German standard DIN 4108 has been a common method to assess the moisture balance of a building component by considering vapour diffusion transport in its interior.

The Glaser method identifies vapour diffusion, how easily water vapour can pass through the fabric of the building. However, limitations of this approach are that Glaser assumes vapour moves only one way (inside to outside).

BS EN 13788 describes the Glaser method. This is a useful document which outlines the calculation method to assess the risk of surface and interstitial condensation.

The Glaser method is an assessment procedure for the risk of moisture accumulation in building mono-dimensional structures, that could be used to evaluate mould risk and interstitial condensation risk.It is based on a simplified model that does not represent the real phenomenon and its limitations are well-known qualitatively.This work provides ...

'Glaser Method' The assessment method BS EN ISO 13788 (2012) is a one-dimensional steady-state assessment method predicting the risk of surface and interstitial condensation through a...

The Glaser method, as codified in BS EN 13788, is a procedure to assess the condensation risk in building fabric. The original Glaser method, developed by Dr. H. Glaser, a German engineer, was first published in 1959, as an assessment method for diffusion transport processes in the thermal envelopes of cold rooms.

Glaser Method. BS EN ISO 5250 states that designers of buildings should use the method described in BS EN ISO 13788 (the Glaser method) to assess the risk of interstitial condensation (condensation within the building fabric).

It then presents a method of determining the internal relative humidity based on climates classes. The guide describes how condensation and evaporation are dealt with in the Glaser method and presents a number of sample calculations which show how the Glaser method is used to assess the risk of interstitial condensation.

Dec 6, 2023 · What to consider when using the Glaser approach to condensation risk analysis. The Glaser approach indicates how much condensate is deposited, how much evaporates and any balance which might accumulate year on year.

Feb 6, 2019 · Accurate assessment of both surface and interstitial condensation risk is important not only to reduce the damaging effect of moisture within the structure of buildings, but also to provide a healthy environment free from mould growth.