I am thinking of having cavity wall insulation, I am in a victorian terrace with a large bay window.As the wall cavity sort of carries on into the bay window woodwork and internal panelling what will happen when they start the pumps? will insulation come out any gaps in the woodwork ( there are a few little gaps at floor level, or will the voids in the bay just fill up with the stuff? I dont want insulation in my living room..