Optimal argon cavity in triple pane windows?
Quite technical / nerdy, but wondering if anyone has any insights on this subject. From the limited research I have been able to do on the internet, it appears that the optimal thickness for the argon cavity is 14.5mm
It appears to be a tradeoff between reducing conduction with thicker spaces, but increasing risk of convection as the space gets larger.
I am wondering because I have seen many passive house insulated glass units (IGUs) with 18mm gaps, but one or two with 25mm gaps. I've been told by a manufacturer that the topic is quite complex, but 18mm seems to be an optimal compromise for window performance over a wide range of temperatures.
Posted Fri, 08/23/2013 - 20:10
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