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Floor base – Junctions with separating wall type 2 (cavity masonry)
3.85NI-wide·Technical Booklet G Resistance to the Passage of Sound
The floor base (excluding any screed) should be carried through to the cavity face of the leaf. The cavity should not be bridged.
soundseparating-floorwall-type-2cavity-masonryFloor type 2.2B – Planks parallel to separating wall type 2
3.86NI-wide·Technical Booklet G Resistance to the Passage of Sound
Where floor type 2.2B is used and the planks are parallel to the separating wall the first joint should be a minimum of 300 mm from the cavity face of the leaf.
soundseparating-floorwall-type-2cavity-masonry