The Installation Handbook - Howarth Timber

4
Cut the GTEC Dryliner Channel RD1 5mm
shorter than the length of the ceiling required
and locate the GTEC Dryliner Channel RD1 into
the GTEC Dryliner Track.
Where required insert mineral wool batts
above the framing ensuring that the mineral
wool forms one continuous lining.
5
Fix plasterboards with the long edges at right
angles to the GTEC Dryliner Channels. Screw-fix
the boards to the GTEC Dryliner Channels
at 230mm maximum centres and 150mm
maximum centres at perimeters and the cut
ends of board.
With two layers of plasterboard, stagger all the
joints between the layers. For the typical single
layer and two-layer plasterboard layouts, see
diagrams overleaf.
Table 1: Maximum framing centres
Board thickness Board length GTEC Dryliner
(mm) (mm) Channel centres (mm)
12.5 2400 400
1800, 2700 450
3600 450
15 and 19 2700 450
other lengths 600
Table 2: Centres for GTEC Joist Connectors and
GTEC SR Brackets
Board thickness
9.5mm plasterboard single layer 600
12.5mm plasterboard single layer 600
15.0mm plasterboard single layer 600
All double layer boarding 600
Maximum (mm)
THE INSTALLATION HANDBOOK 2008
59