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Anonymous users2024-01-24Scope of application: public areas, corridors.
Key points:1If the distance between the unilateral side of the ceiling exceeds 12 meters, expansion joints should be set.
2.The double-layer gypsum board ceiling needs to leave 10-20mm seams, the handover length is 30-50mm, and the spacing from the edge of the expansion joint to the suspension bar is not more than 300mm.
3. The single-layer gypsum board ceiling is lined with blockboard (fireproof treatment) and connected with the side keel, and the lower mouth is left with a 10-20mm seam.
The gypsum board ceiling must leave expansion joints, otherwise the gypsum board ceiling will crack according to the rising key principle of "thermal expansion and cold contraction". >>>More
There are no big rules, it is generally that the basic surface layer is all dealt with, and expansion joints can be installed, just do it, it is nothing more than the plane and corner, and the exterior wall may be slightly more elaborate than the ceiling.
How to make gypsum board ceiling expansion joints.
Conditions for making expansion joints: expansion joints should be set at a unilateral distance of more than 12 meters from the gypsum board ceiling. The double-layer gypsum board ceiling needs to leave 10-20mm seams, the handover length is 30-50mm, and the spacing from the edge of the expansion joint to the hanging bar is not more than 300mm. >>>More
This seam needs to be closed with elastic sealing paste or installed with decorative strips >>>More
It is stipulated that if the ceiling area is greater than 100, expansion joints are set; Does this expansion joint need to be set separately? How should its labor cost and auxiliary material cost be calculated? >>>More