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--- planning:airtight_construction:general_principles:principles_for_improving_airtightness [2015/09/14 15:23] – [Principles] wfeist
+++ planning:airtight_construction:general_principles:principles_for_improving_airtightness [2015/09/14 15:24] – [Key Principle] wfeist
@@ Line 6: / Line 6: @@
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 |{{ :picopen:stiftregel_luftdicht.png }}|
-|//**Details are important – but what is more important is the\\ basic concept. A building envelope can only be airtight\\ if it consists of just one uninterrupted airtight envelope\\ enclosing the whole heated space (red line).**//|\\
+|//**Details are important – but what is more important is the\\ basic concept. A building envelope can only be airtight\\ if it consists of just one uninterrupted airtight envelope\\ enclosing the whole conditioned space (red line).**//|\\
 \\
 It is essential that only a **single** airtight layer is planned and implemented. Two “nearly” airtight layers will serve no purpose – leakage will still take place! This can be visualised, for example, by a leakage in the entrance door of a house, where a leaking door in the lobby won’t remedy the problem, or two buckets, both with a hole in the bottom; if one is placed inside the other, this won’t stop the water from leaking out!