 Loading
test |
 |
Installation Guide
[Site Condition ] [ Seting out and levelling ] [ Top fixings ] [ Hangers ] [ Main Tees ] [ Cross Tee ] [ Wall Angle ]
|
- Suspension ceilings are essentially a finishing
trade and therefore the building shall be in a suitable condition with regard to
cleanliness, temperature and relative humidity before installation begins.
- The building shall be fully enclosed, and all wet work shall be completed and dried out unless the board manufacturer's recommendations allow otherwise.
- All work above the suspended ceiling shall be completed before the suspended ceiling is installed with the exception of connections and balancing adjustments to services.
- Sufficient information shall be clearly indicated
on the drawings to enable the ceiling module and setting out points in each ceiling area
applicable to all relevant trades to be established early. All trade shall work to the
same setting out points and data.
- The ceiling height in each area shall be marked in
relation to the elevation bench marks and then transferred by means of water level, or
rotation laser or other device.
- Setting out lines shall be in both directions and squared accurately at the outsets.
- Before top fixing are installed, the suitability
of the building structure from which the ceiling is to be suspended shall be verified.
- Preferably all top fixings shall be installed at the same times as the suspended ceiling to ensure accurate spacing.
- Hangers shall be spaced in accordance with the
recommendations of the manufacturer of the ceiling system.
- Where hangers cannot be fixed at the recommended
spacing due to the presence of services equipment or other obstructions, a sub-grid of
appropriate span performance shall be used. It shall be securely supported to prevent
lateral movement.
- Hangers shall be vertical of nearly vertical and shall not press against insulation covering ducts or pipes. If hangers have to be fixed diagonally to avoid obstructions the horizontal force shall be offset by bracing. Wire hangers shall be carefully straightened and tensioned before use.
 |
 |
- The main runners shall be installed so that they are level. Leveling shall be done with the supporting hangers taut to prevent any subsequent download movement when the ceiling loads are applied.
- Kinks or bends shall not be made in hanger wire as a means of leveling the main runners.
There shall be no visually apparent angular displacement of the longitudinal axis of one runner in relation to the next runner in line with it.
¡@
Hanger Wire
- Where hangers wires pass through main runners, the loops shall be sharply bent and tightly wrapped to prevent vertical movement of the runner within the loop. The wire must be wrapped around itself a minimum of the full turns ( 360 0 each ) within a 3 inches length.
¡@
Tee Hanger
- An alternative hanging method by using galvanized steel Tee hanger. It provides a rigid hanger system where the ceiling is likely to be subjected to upward movement, e.g. wind pressure cleaning procedures etc.
- Cross tees that are supported by either main runners or other cross tees shall be installed so that from a right angle with the interesting runner.
- Cross tees over 600mm long which are cut and rest on the wall angle shall be supported by an additional hanger.
- Wall angle shall be neatly jointed at all external and internal angles. Straight run joint shall be neat and adjacent lengths truly in line.
- All wall angle shall be firmly fixed at the specified centers to the perimeter wall or other structure.