Mechanical Drying of Wall Assemblies
This came up in a GBA article regarding Managing Water and Insulating Walls Without Sheathing. My FHB All Access does not give me rights to comment on GBA prime articles so I am here.
Based on the level of skills, and or willingness to manage the detailing as we insulate our homes, isn’t something other than a passive approach to drying worth entertaining?
I like Risingers (or whoever) idea of the snorkels for the wall cavities. As long as things are open couldn’t we do a bit better and come up with a way to mechanically enhance the drying.
Seems as we travel further down this path that this is something that should be taken more seriously. Combining lots of thermal resistance with the requisite reductions in energy seems to be a recipe for some big disasters.
I am not talking about 400 lb radiators, but just blowing enough air to accelerate things a bit. Maybe its triggered by observed moisture levels surpassing some level.
An energy rater friend of mine talks about newer homes smelling like old shoes after only a few years. while the problems might be deeper, close monitoring along with some mechanical assistance might take us a long way to preventing some of the disasters we have seen in high performance homes. I am told this is sometimes done in the commercial world, why not in residential?
Repairing or even replacing a home that has mold or rot, is not an energy winner.
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