lec7 - Protection against humidity Moisture penetration...

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Protection against humidity Moisture penetration ± bulk moisture ± capillary action ± air leakage ± vapor diffusion
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Protection against humidity Condensation from humid air infiltration ± sources of water vapor and typical humidity production [g/h]: ­ Resting person 30 to 50 ­ Active person 200 to 300 ­ Cooking water 100 to 200 ­ Bath 2000 ­ Shower 2400 ­ Apartment plant 10 ­ Washing machine (laundry) 50 to 200 ­ Dryer (laundry) 500 Total for apartment 400 to 1600 i.e. 7 to 11 kg/day
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Protection against humidity Condensation from humid air infiltration ± reaching of dew-point °T - assess condensation risk higher if thermal bridges or poor ventilation Tem per at ur e Va po r pr es su re p sat vap Dew-point Dew point 0 10 20 30 40 50 o C 30 25 20 15 10 5 g/kg 0 17 .5 o C Image by MIT OCW.
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Protection against humidity Condensation from humid air infiltration ± reaching of dew-point °T - assess condensat i on risk - calculate amount of condensed water
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This note was uploaded on 12/11/2009 for the course ARCHITECTU 4.401 taught by Professor Marilyneandersen during the Spring '06 term at MIT.

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lec7 - Protection against humidity Moisture penetration...

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