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| 1 Determining the suspended ceiling grade
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2 Fixing U-profiles |
3 Position of suspension rods |
• By considering the thickness of the gypsum board thickness
according to the finishing grade of the requested suspended ceiling, the lower
grade of ceiling U-profiles is marked on the wall surface. • This grade is
carried to the other walls and the fixing line is drawn on all walls with
shaving rope.
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• The ceiling U-profiles are fixed with dowel-screw-washer by
using drill on this line. • The screw intervals must be 60 cm. |
• The distance of the suspension rod on the corner where the application will
be started must be 10 cm to both walls. • As the suspension rods will carry
the Main-profiles (upper C-profiles), it must be determined which wall of the
room it will be parallel. |
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| 4 Locations of steel dowel |
5 Location of suspension rods |
• In the above drawing, the Main-profiles are
considered as parallel to the longer wall (a-axis) of the room. • The
locations of steel dowel are marked with maximum 90 cm intervals in a-axis
direction. • Other Main-profile axis is drawn to the ceiling with shaving
rope with 90-110 cm intervals. • The locations of steel dowel are marked on
the drawn Main-profile axis with maximum 90 cm intervals.
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• While determining the locations of the suspension rods, the
locations of the electricity, sound, air conditioning, ventilation and fire
prevention installations that take place between the ceiling and the suspended
ceiling or will be made before the application is completed must be considered.
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| 6 Additional suspension rods |
7 Fixing the steel dowels |
8 Size of the suspension rods |
| • In order to not collide the suspension rods and the Main-profiles with the
installations in question, additional suspension rods are used in required
locations or the suspension rods and profiles are slid within the limit values.
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• The determined locations are drilled with drill. • The steel dowels
are nailed in with hammer to the holes and secured with the nut under them.
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• The amount of the suspension rod to be used is determined. • The
suspension rods are cut minimum 4-5 cm and maximum 7-8 cm shorter than the
distance between the ceiling and the lower grade of the U-profile. • The
cutting procedure is carried out with profile or iron cutter.
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10 Fastening the suspension rods |
11 Fastening the suspension joints
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• In another option, the suspension rods are not cut. • In
this case, the suspension tongs and the Main-profiles are twisted upwards after
they are fastened and taken to the scale.
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• The suspension rods are suspended by passing them through the
L-iron on the steel dowels. |
• The suspension tongs must look to the same direction by
providing easy passing of the C-profiles. • The springs on the suspension
tongs are pressed and the suspension rods are passed through the holes on the
spring.
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| 12 Fastening the Main-profiles |
13 Attaching fitting |
14 Joint places |
• If T-suspension tong is used, then the Main-profiles are
fastened by passing through the tong teeth. • If C-suspension tong is used,
then the Main-profile drawn near to the tong and the tong is rotated until it
locks the Main-profile.
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• Attaching fitting is used in joint places of the Main-profiles.
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• The joint places of neighboring Main-profile axis must be
discomposed. |
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| 15 Intervals of Secondary-profiles |
16 Location of Secondary-profiles |
17 Fixing the Secondary-profiles |
| • The Secondary-profile intervals must be 50 cm. |
• The distance of the first Secondary-profile to the existing or
cladding wall must be 10 cm. |
• The Secondary-profiles (lower C-profiles) are penetrated to the
ceiling U-profiles in vertical direction to the Main-profiles. • The
Secondary-profiles are fixed to the Main-profiles by using two clips at
intersection points. |
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| 18 Attaching fitting |
19 Cutting of gypsum boards |
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| • Attaching fitting is used on locations of Secondary-profiles.
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• The pasteboard on the front side of the gypsum board is cut
with a utility knife by using a template. • The utility knife must contact
with the gypsum surface by completely cutting the plasterboard.
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The gypsum board is broken with hand from the cutting place by
keeping the cut surface upside. • The gypsum board is turned upside down and
the rear plasterboard connection is cut with the utility knife.
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| 21 Insulation Material |
22 Gypsum board coating
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• If it is projected to make insulation on the suspended ceiling, then the
insulation materials are placed on the profiles before coating the gypsum board.
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• If the walls are perpendicular to each other, then
the gypsum board is approximated to the wall corner my constituting a right
angle to the Secondary-profiles. • The short edges of the gypsum board must
center the wings of the Secondary-profiles. • The gypsum boards are fixed to
the Secondary-profiles in the direction of the profile axis with 25 mm drywall
screws.
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24 Screwing |
• If the walls are not perpendicular to each other,
then the gypsum boards numbered 1 and 2 are cut diagonally and screwed by coming
together with the wall. • The short edges of the gypsum board must center
the wings of the Secondary-profiles. • The gypsum boards are fixed to the
Secondary-profiles in the direction of the profile axis with 25 mm drywall
profiles.
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• The screw intervals must be maximum 30 cm. • The screw
heads must be embedded in the surface of the gypsum board and it must be careful
to not damage the plasterboard.
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| 25 Variable Distance Ceilings |
26 Ceilings Under Hollow Furnishing |
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• The suspension rods are suspended by passing through the L-iron
on the steel dowels. • The suspension tongs are fixed to the suspension
rods. • The rods are twisted upwards after they are adjusted according to
the requested height.
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• The steel dowels must be fixed to the rib joists between the
hollows. |
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