What's the difference between double keel ceiling and single ceiling? What are the advantages and disadvantages of each?

There is a difference between the two.

1, single-layer keel ceiling refers to the structure with large keel and middle keel at the same level. Double keel refers to the structure of nailing a layer of small and medium keel under the big keel. Generally, the double-layer structure can bear or carry people.

2. Double deck: Double deck is mainly used in shopping malls, hospitals, hotel halls and other engineering project places where people need to repair circuit equipment; The invention has the advantages of being firmer, having greater bearing capacity and being convenient for people to maintain circuit equipment; The disadvantage is that the cost is higher.

3, single layer: the advantage is that the cost is cheap; The disadvantage is that the bearing capacity is not as large as that of the double layer, and the service life is not as long as that of the double layer.

Extended data:

1, light steel joists include suspended ceiling joists and partition joists according to their uses, and U-shaped joists, C-shaped joists, T-shaped joists and L-shaped joists according to their cross-sectional forms.

2. The U-shaped keel is a load-bearing keel and can be used as a partition keel. As the main keel support, u60 or above can be used as ceiling. ?

3.T-shaped keel is generally used for suspended ceiling, and T-shaped keel is used for main keel and cross brace.

Reference source: Baidu Encyclopedia-Light steel keel ceiling