Building Regulations (Northern Ireland) 2000

Separating walls and separating floors

G2—(1) A separating wall in conjunction with its flanking construction shall provide adequate resistance to airborne sound transmission.

(2) Subject to paragraph (3) a separating floor in conjunction with its flanking construction shall provide adequate resistance to airborne sound transmission and, where such a floor is above a dwelling, adequate resistance to impact sound transmission.

(3) A separating floor or part of a separating floor which forms an open access balcony shall provide adequate resistance to impact sound transmission only.