25 Nov '15, 1pm

@BMWi @Kym_Mead nice, but passive hse insulation more affordable for most! https://t.co/LDAmu5PLPZ

High surface temperatures of the interior surface during winter are an automatic consequence of the low heat loss. It is not needed to heat these surfaces directly. On this reson the radiation temperature differences from various directions are small, this is a good condition for high thermal comfort. In addition the high surface temperatures reduce the relative humidity at this place. Therefor demages by humidity coming from the indoor air can be excluded in passive houses. During Summer the internal surface temperatures are near to the indoor are temperatures, again - i.d. beeing lower than with poorly insulated construction, that will transport more heat from outside to inside. Looking at the instationary behaivior. Highly insulated constructions do provide a high damping of the temperature amplitude even with low heat capacities (a double layer of gipsum board will be ...

Full article: http://passiv.de/former_conferences/Passive_House_E/Passi...

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