Section 9.1.2
Finishing
Dry lining shall provide an adequate substrate for the decorative finish. Dry lining shall be installed in accordance with British Gypsum White Book and NHBC Standards.
Gyproc joint tape firmly embedded into jointing compound.
Jointing compound over taped joints and screw heads.
Crease Gyproc Joint Tape to the angle and bed firmly into jointing material.
Thistle ProTape should not be used on internal angles, as differential movement between wall and ceiling can lead to cracking of the joint.
For external corners Gyproc Corner Tapes are bedded with a Gyproc setting compound.
Two or three further applications of jointing compound are trowel applied, each feathered out beyond the previous application.
An equal number of applications are made to spot screw heads. Once dried, the joint treatment is sanded as necessary to achieve a smooth surface.
Use a mechanical sander to produce a smooth finish.