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Treatment for Junctions of Walls |
To achieve optimum fire resistance and sound insulation, it
is most important that any gaps or other air path which may occur in the partition
walls (directly above plasterboard linings at the junction with ceilings or beneath
plasterboard linings at floor level) must be sealed with appropriate fillers and
sealants during the construction of sound insulation drywalls. Without this treatment,
satisfactory sound insulation performance can not be achieved as sounds may be
transmitted from gaps or air paths in walls to adjacent rooms. Also, in case of
fire, inefficient treatments for gaps or air paths would trigger spread of fire
as fire or smoke may run through any gaps at junctions of walls. Therefore, it
is so important to treat junctions of walls as follows.
| Treatments for Junctions of Walls (3 methods) |
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* Our walls shown above are non-loadbearing. Thus, the treatments
and the size of gaps or air paths shown above are based on the condition that
any forces generated by deformation of wall framings are not to be applied to
partition walls. The deformation levels of wall framings, such as columns and
beams (including creep of floor slab), are not always the same. Therefore, considerations
should be taken for any extra gaps or air paths which may occur due to deformation
of wall framings during design process.
| Materials for treating junctions of walls |
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