| |
Grenaboard |
Plastiboard |
| Weight of the board |
7,7, kg/m2 |
From 10,5 kg/m2 to 14 kg/m2 according to board
thickness board thickness depending on required
fire-resistance of the constructions. |
Suspended construction
number of CD profiles
and suporting elements
|
- Spacing of CD profiles always 600 mm for all
constructions.
- It is not necessary to cross CD profiles,
the boards are sufficiently strong
for one direction of CD profiles.
-It is not necessary to use cross conectors
for CD profiles.
|
- Spacing of CD profiles from 450 mm.
- Crossing of CD profiles is necessary with spacing
from 450 mm.
- Cross conectors of CD profiles are necessary
with spacing from 450x450 mm.
|
|
Construction
of suspended
ceiling doubling of board
layers for greater
fire-resistance
|
Always the same construction of suspended
ceiling for all fire resistances, one type of board,
one layer, the same spacing of profiles. |
With fire-resistance over 45 min a double layer
of plastiboards or use of a much thicker boards
with the influance of the construction load it is
necessary to reduce the spacing of CD profiles
and to increase their number and also
the number of hangers. |
|
Fire resistance
|
Fire resistance up to 180 min. depending on
the type of ceiling construction. |
Fire resistance up to 120 min. depending on
the type of ceiling construction. |
| Sound insulation |
Tested with mineral wool, minimum thickness
40 mm, density 40 kg/m2
for increased sound insulation. |
|
Installation
|
Installation is the same for all types of ceiling
constructions and fire resistances, the same
number of profiles, connectors and elements |
Installation is more demanding because of greater
number of elements especially with increased
fire-resistance over 45 min. It is necessary
to double the board layers and to use more
supporting elements. (CD profiles, hangers,
cross connectors, screws, etc.). |