TY - RPRT
T1 - Beregnede fugtforhold i konstruktioner
T2 - Del af "Varme- og fugttekniske undersøgelser af alternative
isoelringsmaterialer"
AU - Rode, Carsten
AU - Rasmussen, Niels T.
PY - 1999/12
Y1 - 1999/12
N2 - Calculated Moisture Conditions in Building Constructions. Part of
"Hygrothermal Properties of Alternative Insulation Materials".The
hygrothermal performance of constructions with alternative
insulation products has been analysed with the 1-dimensional
computer model MATCH for combined heat and moisture transfer. The
analysis concerns both traditional wall and roof constructions
with the alternative insulation products, and some alternative
designs prescribed by manufacturers of alternative insulation
materials. The choice of construction types originates both from
an official direction on energy efficient building design, and
from a catalogue of alternative construction layouts advised by a
manufacturer of alternative insulation. The analysis comprises the
use of flax, cellulose fibre, perlite, glass wool, and rock
wool.The analysis has shown that alternative insulation materials
can be used in place of mineral wool in a large number of
traditional Danish and alternative building constructions.
However, one should be aware of the hygroscopic moisture that is
entrained with the organic types of alternative insulation. This
must not accumulate in other building parts to which it will
migrate in some seasons. Thus, constructions that are ventilated
to the outside may be better to use when the insulation is
hygroscopic. There is no particular advantage for the analysed
constructions in using a somewhat permeable vapour retarder. The
inorganic alternative insulation material, perlite, seems to have
much the same hygrothermal performance as mineral wool.
AB - Calculated Moisture Conditions in Building Constructions. Part of
"Hygrothermal Properties of Alternative Insulation Materials".The
hygrothermal performance of constructions with alternative
insulation products has been analysed with the 1-dimensional
computer model MATCH for combined heat and moisture transfer. The
analysis concerns both traditional wall and roof constructions
with the alternative insulation products, and some alternative
designs prescribed by manufacturers of alternative insulation
materials. The choice of construction types originates both from
an official direction on energy efficient building design, and
from a catalogue of alternative construction layouts advised by a
manufacturer of alternative insulation. The analysis comprises the
use of flax, cellulose fibre, perlite, glass wool, and rock
wool.The analysis has shown that alternative insulation materials
can be used in place of mineral wool in a large number of
traditional Danish and alternative building constructions.
However, one should be aware of the hygroscopic moisture that is
entrained with the organic types of alternative insulation. This
must not accumulate in other building parts to which it will
migrate in some seasons. Thus, constructions that are ventilated
to the outside may be better to use when the insulation is
hygroscopic. There is no particular advantage for the analysed
constructions in using a somewhat permeable vapour retarder. The
inorganic alternative insulation material, perlite, seems to have
much the same hygrothermal performance as mineral wool.
M3 - Rapport
T3 - BYG Sagsrapport
BT - Beregnede fugtforhold i konstruktioner
ER -