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Stucco House and Insulation Incompatible?

Housework4601 | Posted in Energy Efficiency and Durability on

I have seen a you tube video of a popular builder in the South talk about people blowing in insulation into stucco clad old houses and causing moisture problems such as mold and rot in the residential structures walls.  The stucco walls tend to stay dry from moisture moving freely through the structure walls and keeping them dry.  Thoughts on this?  He said that spending a bit more on heat and air will save the structural integrity of the house from moisture that blown in insulation would cause.  Now the attic can have cellulose or fiberglass blown in and help on some utility costs?  What other opinions are out there for an old stucco house? House is in Southeast Kansas. Humid quite often through the year here.

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Replies

  1. John Clark | | #1

    Define old. There were some stucco homes in the late 80's and 90's which had a problem. (ie. Dryvit class action lawsuit). IIRC it was a stucco/foam product where install errors would allow bulk water to get trapped in the wall cavity.

    Properly installed stucco has no problem with insulation inside the walls.

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