Every rule your project must meet, found for you.

NI-wide·Technical Booklet B Materials and Workmanship

Insitu foamed Urea formaldehyde may be used for filling the cavity of a cavity wall having an inner leaf constructed of bricks or blocks, provided that it is—(a) suitable for such an application; and

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Recommended cavity widths are minimum values.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Two leaves of dense aggregate concrete block with 50 mm cavity, plaster on both room faces (see Diagram 2.15) – minimum mass per unit area including plaster 415 kg/m2; minimum cavity width of 50 mm; 1

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Two leaves of lightweight aggregate block with 75 mm cavity, plaster on both room faces (see Diagram 2.16) – minimum mass per unit area including plaster 300 kg/m2; minimum cavity width of 75 mm; 13 m

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where the external wall is a cavity wall – (a) the outer leaf of the wall may be of any construction; and (b) the cavity should be closed with a cavity stop unless the cavity is fully filled with mine

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The masonry inner leaf of a cavity wall should be lined with an independent panel as described for wall type 3. The ceiling should be taken through to the masonry. The junction between the ceiling and

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Use any normal method of connecting floor base to wall but block air paths between floor and wall cavities.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where the mass per unit area of the inner leaf is greater than 375 kg/m2 the independent panels are not required.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Where the external wall is a cavity wall – (a) the outer leaf of the wall may be of any construction; and (b) the cavity should be closed with a cavity stop.

NI-wide·Technical Booklet G Resistance to the Passage of Sound

The wall finish of the inner leaf of the external wall should be – (a) two layers of plasterboard; (b) each sheet of plasterboard of minimum mass per unit area 10 kg/m2; and (c) all joints should be s

NI-wide·Technical Booklet G Resistance to the Passage of Sound

Use any normal method of connecting floor base to wall. Where the joists are at right angles to the wall, spaces between the floor joists should be sealed with full depth timber blocking. Any voids to