EIFS Drainage Plane

Everything concerning hygrothermal Sources & Sinks within the assembly
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pgphillips
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EIFS Drainage Plane

Post by pgphillips » Thu Mar 10, 2011 11:45 am -1100

I am trying to model a drainage plane with an air layer just outside the WRB. Is there anything I need to do as far as sources and sinks in the air layer. Should I use something different from the "air layer" material?

I added 1% rain leakage in the WRB; is that the right approach?


Thanks in advance.
Paul Phillips

Manfred Kehrer
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Post by Manfred Kehrer » Thu Mar 10, 2011 3:54 pm -1100

Dear Paul,

just use the air layer and an appropriate average air change rate.

The 1% Rain source might cause stability problems. In this case place the source at the OSB/Plywood behind the WRB
Manfred
Wiss, Janney, Elstner Associates, Inc.
Official WUFI® Collaboration Partner for USA/Canada
Enjoy WUFI® :) .... It is easy and complex.

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