by SIM » Mon Apr 13, 2009 9:50 pm
In balloon construction there is no top plate and the floor joist cavities are nailed directly to the wall studs. As a result, the joist and wall cavities are continuous. When dense packing the exterior walls with cellulose insulation you must first block the opening to the floor joist cavity or insulation will continually flow between the floors.
This can be accomplished using a long bag that gets filled with cellulose, if access is available, or smaller bags that are filled in the individual area created by each joist cavity.
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