planning:refurbishment_with_passive_house_components:thermal_envelope:floor_replacement_svartbaecksvaegen
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planning:refurbishment_with_passive_house_components:thermal_envelope:floor_replacement_svartbaecksvaegen [2017/12/13 18:04] – [Floor Replacement: Svartbäcksvägen] kdreimane | planning:refurbishment_with_passive_house_components:thermal_envelope:floor_replacement_svartbaecksvaegen [2017/12/13 18:05] (current) – [Floor Replacement: Svartbäcksvägen] kdreimane | ||
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One of the main challenges when fitting a new ground floor to an existing building is to reduce thermal bridging to an acceptable minimum. This helps to avoid heat loss and condensation (which in turn may damage the building structure and/or cause mould growth). | One of the main challenges when fitting a new ground floor to an existing building is to reduce thermal bridging to an acceptable minimum. This helps to avoid heat loss and condensation (which in turn may damage the building structure and/or cause mould growth). | ||
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On the outside, the earth is dug out, new drainage pipes are positioned and the trench is filled with FOAMGLAS® gravel. Insulation boards with draining properties are fitted to the wall. The resulting Ψ–value of the wall/floor connection for the PHPP input is approximately 0.020-0.040W/ | On the outside, the earth is dug out, new drainage pipes are positioned and the trench is filled with FOAMGLAS® gravel. Insulation boards with draining properties are fitted to the wall. The resulting Ψ–value of the wall/floor connection for the PHPP input is approximately 0.020-0.040W/ | ||
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A critical area is the surface temperature in the corner where the concrete foundation stops and the wall begins, since this is the exact point where the floor surface also meets the wall. The concrete foundation is still sitting directly on the rock, but with the insulation surrounding it, the (static model) minimum surface temperature at -10°C ambient temperature is +15.3°C – which is high enough not to cause concern. | A critical area is the surface temperature in the corner where the concrete foundation stops and the wall begins, since this is the exact point where the floor surface also meets the wall. The concrete foundation is still sitting directly on the rock, but with the insulation surrounding it, the (static model) minimum surface temperature at -10°C ambient temperature is +15.3°C – which is high enough not to cause concern. | ||
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planning/refurbishment_with_passive_house_components/thermal_envelope/floor_replacement_svartbaecksvaegen.txt · Last modified: 2017/12/13 18:05 by kdreimane