The light steel keel ceiling is made of high-quality continuous hot-dip galvanized sheet metal as a raw material and is rolled through a cold bending process to form a metal skeleton for construction. It is used for the decoration of non-load-bearing walls and building roofs that are decorated with light-weight plates such as gypsum board and decorative gypsum board. It is suitable for the decoration of various types of building roofs, the interior and exterior walls of buildings, and the basic materials of scaffolding ceilings. What are the advantages and disadvantages of light steel keel ceilings? Take a look!
The advantages of light steel keel ceiling
1, its own lighter weight. The light steel keel ceiling is a lightweight material. The weight of ceilings made with this material is only 3 to 4 kg/m2. If the ceiling is composed of 9 mm thick gypsum board, it is about 11 kg/m2, which is 1/4 of the weight of the plaster ceiling. The partition has a self-weight of 5 kg/m2, and the wall composed of gypsum boards of 12 rnm thick on both sides weighs about 25-27 kg/m2, which is equivalent to only 1/10 of the quality of a half-brick wall.
2, light steel keel ceiling fire performance is excellent. The partition made of light steel keel and 2 to 4 layers of gypsum board, the fire resistance limit can reach 1.0 ~ 1.6h. Therefore, the light steel keel has excellent fire performance.
3, light steel keel ceiling construction efficiency. As the light steel keel is a lightweight material, a prefabricated construction method can be used. Therefore, its construction efficiency is high, and the general construction technology level can be cut off every working day by 3 to 4 m2.
4, light steel keel ceiling structure is safe and reliable. Because the light steel keel has excellent characteristics such as high strength and rigidity, the structure made of it is very safe and reliable. For example, when a partition wall of 3.25 to 6.00 m in height is made of partition wall keel with a width of 50 to 150 mm, the maximum deflection of the wall keel can meet the requirements specified in the standard to be no greater than 1/250 under a uniform load of 250 N/m0. 20 requirements.
5, good impact resistance. The light steel keel and 9-18mm thick plain paper gypsum board constitute the partition wall, and its longitudinal fracture load is 390-850N, so its impact resistance is good.
6, good seismic performance. Light steel keel ceilings and surface layers are often fixed with shot screws, blind rivets, and self-tapping screws. The shock resistance is good. Under the effect of seismic shear, the partition only produces bearing slip, while the light steel keel and the surface itself are very weak and will not be damaged.
7, can improve the insulation, sound insulation effect and indoor utilization. Due to the small footprint of the light steel keel ceiling, such as the Q75 light steel keel and the two-story 12mm gypsum board, the width is only 99mm, and its thermal insulation performance far exceeds a brick wall. If the light steel keel is filled with thermal insulation materials such as rock wool, the thermal insulation effect can be equivalent to a 37mm thick brick wall. The use of such materials in partitions or ceilings, such as entertainment venues, conference rooms, offices, etc., can not only solve the problems of sound insulation and insulation, but also improve the utilization of the interior.
Light steel keel ceiling defects:
1, due to the characteristics of the structure itself, occupy more space on the top
2, high construction process requirements
3, can only make a straight line shape, can not do other shapes
4, the price is high
Editor's summary: The replacement of wooden keel by light steel keel ceiling has become a decoration trend. At present, most of the decoration companies have abandoned the wooden keel and chose light steel keel. It is better to use light steel keels for ceilings in general larger spaces, and have good flatness. In homes and other small spaces, wood keels can be considered, because home improvement will pursue styling, so wooden keels are more convenient.
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