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Joseph Lstiburek, Ph.D., P.Eng., ASHRAE Fellow
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 Buildings should be suited to their
environment.
 The laws of physics must be followed.
Three things destroy materials in general and
in particular: water, heat and ultra-violet radiation.
Of these three is the most important by an order
of magnitude.
 love wet materials.
No wet materials, no
.
Things get wet let them dry.
Things get wet from the inside, the outside and they
start out wet.
When the rate of wetting exceeds the rate of drying
accumulation occurs. When the quantity of accumulated
moisture exceeds the storage capacity of the material problems
occur.
The storage capacity of a material depends on time
and temperature.
The drying potential of an assembly decreases with
the level of insulation and increases with the rate of air flow.
As such, energy conservation has the potential to destroy more
buildings than architects.
 Don't let biologists and wood scientists
design real buildings.
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