Construction Theory Guides
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). This theory guide provides
a detailed description of the Glaser method and includes numerous worked examples
showing how it is used.
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Admittance Method
All building materials have thermal mass, which is the capacity to store heat. If
the temperature in a building is fluctuating, then any part of the building fabric
that has a large thermal mass will absorb or release heat to counter the
fluctuations and maintain a uniform temperature. A dense material like concrete
has a large thermal mass and designers of buildings often use this property as
part of the heating and cooling strategy of the building. Designers use the
admittance method to determine the precise response of a composite planar
structure to temperature fluctuations on the two sides of the structure. This
series of theory guides explains the theoretical basis of the admittance method
and illustrates how it is used through numerous worked examples.
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