Technical Booklet G Resistance to the Passage of Sound·Page 31·2.32(h-j)
Solid Masonry Wall Type 1 - Construction Restrictions (Do Not's)
Key practices to avoid in solid masonry separating walls, including cavity filling with unsuitable materials, deep sockets and back-to-back electrical outlets, and improper junctions between solid and cavity walls.
Do not
(h) Do not try and convert a cavity separating wall to a type 1 (solid masonry) separating wall by inserting mortar or concrete into the cavity between the two leaves.
(i) Do not use deep sockets and chases in the separating wall, and do not place electrical sockets or switches back to back.
(j) Do not create a junction between a solid wall type 1 and a cavity wall type 2 in which the cavity wall is bridged by the solid wall.
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