i n s ta l l at i o n p r o c e d u r e
Erecting a Nutec Suspended Ceiling to the Underside of a Concrete Slab
Step 1
Setting out the Grid
Strike a level chalk line around the perimeter of the room at the height at which the ceiling is to be fixed.
Fix the wall angle on this line using screws and plugs at a maximum 400 mm centres. For a tidy
finish the wall angles should not rest on top of each other at the corners. Mitre and butt-join.
Establish the centre of the room and mark on the opposite walls of the room adjacent to the
underside of the slab.
After determining the direction in which the boards will be installed, start from the centre of one
wall and mark at 1 200 mm intervals, finishing with equal spacings at the adjoining walls.
Repeat the procedure on the opposite wall. Strike chalk lines against the concrete slab to connect these points across the width of the room.
To mark the room in the other direction, start on the centre line previously marked and mark the
wall at 600 mm centres, finishing with equal spacings at opposite ends of the room. Mark the
opposite wall in the same manner. Strike chalk lines to join these points.
The underside of the slab should now be marked out in blocks of 1 200 mm x 600 mm.
Fig 1 : Setting out the ceiling grid
1 200
1 200
1 200
1 200
400
600 600 600 600
1
2
600 600 600 600
3
400
Centre Line
5 600
400
400
KEY
1
Wall
2
Chalk lines
3
Positions for hangers
All dimensions in mm.
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i n s ta l l at i o n p r o c e d u r e
Step 2
Installing the Grid System
Fix hangers to the underside of the concrete slab at positions where the chalk lines intersect.
Refer Fig 1.
(For the fixing of hangers to the underside of the concrete slab, use angle cleats 25 x 25 x 25 mm
long, 1,6 mm material not supplied by EVERITE).
The hangers can either be 25 mm x 1 mm galvanised strapping or the recommended
4 mm diameter suspension rod and hook combined with suspension spring clip and T-suspension plate.
Span fish lines at various positions across the width of the room in line with the bottom surface of
the wall angle.
Attach main T’s (T38) to the hangers which are at 1 200 mm centres. Adjust the hangers so that
the face of T-section touches the fish lines.
Fit Nutec Suspended Ceiling Board to grid.
Hold down clips.
1 195 mm x 595 mm ceiling boards - four hold down clips per board.
595 mm x 595 mm ceiling boards - two hold down clips per boards.
All perimeter and cut boards must be secured with hold down clips.
Fig 2 : Grid layout for suspended ceilings using 600 mm cross T-section
7
6
5
4
12
00
ma
xim
3
um
2
1
60
8
0
KEY
1. Hold down clip
2. Cross T-Section
3. Main T-section
4. Suspension plate
5. Suspension rod and hook
6. Suspension clip
7. Concrete slab
All dimensions in mm.
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8. Ceiling board
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i n s ta l l at i o n p r o c e d u r e
Fig 3 : Grid layout for Nutec Suspended Ceilings using 1200 mm cross T-section
7
6
5
4
3
2
1
8
1
20
0
m
ax
im
um
KEY
1. Hold down clip
2. Cross T-Section at 600 mm centres
3. Main T-section
4. Suspension plate
5. Suspension rod and hook
6. Suspension clip
7. Concrete slab
All dimensions in mm.
8. Ceiling board
Checking the Grid
Check that the hangers for the grid are correctly spaced and adequately secured to the main
structure.
Check that the underside of the grid is perfectly level. If not, adjust accordingly.
Check that the grid is adequately reinforced where light fittings are to be suspended from the
ceilings and install supporting structure where necessary.
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