Notes on Use
27
Hydromette BL Compact
4.3.2
Equilibrium Moisture/Balance Moisture
The equilibrium values generally given in practice are relative to an
average mid-European climate of 20° C and 65% rel. humidity.
These data are often also known as "balance moisture" or as "air
dry". However, they should not be confused with values
representing material processing or machining ability.
Floor/wall coverings and coating must be considered and evaluated
in conjunction with the respective diffusion characteristics of the
materials used. Please observe the recommendations made by the
respective paint or covering manufacturer.
The long-term ambient climate must also be taken into
consideration for the assessment of wall surfaces. The lime mortar
plaster in an old vaulted cellar can easily have a moisture content
of 2.6 percent by weight, a gypsum plaster in a centrally heated
room should be classified as too moist, on the other hand, at 1.0
percent by weight moisture content.
We recommend an internet search for acquiring more detailed
information.
4.3.3
Material not Covered by the Type Tables
Diverse building materials, such as bricks, sand-lime bricks, etc.,
cannot be measured with the usual accuracy due to their varying
mineral additives or firing duration. However, this does not mean
that comparative measurements in the same building material and
on the same object are not meaningful.
For example, different levels of displayed values may help to
localise the extent of a moisture field (water damage) or drying-out
progress be identified by comparative measurements on dry
internal and wet external walls.
Insulating materials such as rock wool/glass wool, synthetic foams,
etc., cannot be measured exactly in a dry condition due to their
