What are the disadvantages of dry hanging stone? What are the advantages of dry hanging stone?

Nowadays, many buildings will use dry hanging stone technology for their external walls. The so-called dry hanging is the technology of fixing stone directly on the surface of external wall with metal fasteners. What are the disadvantages and advantages of dry hanging stone? Come and have a look with us!

What are the disadvantages of dry hanging stone?

1, the stone is heavy. If you don't hang it firmly, you are in danger of falling, which is the most deadly.

2. Dry hanging stone increases the weight of the wall and affects the mechanical factors of the whole building structure.

3. Some stones will fade, and it is difficult to renovate after fading and whitening, unless they are replaced, which increases the economic burden of the owners.

4. The joints between stones are not perfect, so that the rain outside the wall will still seep into the wall and become moldy. In this way, the stone has achieved the decorative effect, but the protective effect on the wall is still not ideal.

5. The stone cost is obviously too high. High-grade granite stones cost more than RMB 1000 per square meter, while relatively inferior domestic stones cost 300 yuan per square meter to 500 yuan, which also increases the economic burden for the owners, so that many buildings have to give up stone decoration.

6, stone color will not be consistent,

The color difference is very serious. What are the advantages of dry hanging stone?

1. Dry-hung stone is hard and resistant to extrusion, which can effectively avoid the phenomenon of hollowing and cracking of plates in the traditional wet sticking process, has little impact on climate change, and can effectively save the cost of winter application and rain application. The safety and durability of buildings are obviously improved;

2. Lighten the self-weight of the structure and reserve heat preservation space.

3. Continuous operation can improve the construction speed.

4. It can avoid the phenomena of whitening, discoloration and "alkali returning" in the traditional wet sticking process, which is conducive to keeping the curtain wall clean and beautiful and preventing aging;

5. Dry-hanging materials are corrosion-resistant, and there will be a space of 40 ~ 50 mm between the stone and the structure, so it can play the role of thermal insulation. Compared with glass curtain wall, it has the advantages of environmental protection and energy saving.

Construction technology of dry hanging stone

Construction personnel enter the site-positioning and setting out-rechecking embedded parts-rectification treatment-grass-roots treatment-installing L-shaped corner plate-fixing main keel-installing secondary keel-installing lightning protection system-fixing pendant motherboard-installing stone in place-gluing and pointing-cleaning-self-inspection-finished product protection-acceptance.

Small unit stone curtain wall, that is, a kind of curtain wall with the highest degree of processing in the factory, processes stone panels and stone pendants in the factory to form a unit assembly, transports them to the construction site, and directly fixes them on the pendant motherboard connected with the main structure and the secondary keel.

Common technology of dry hanging stone

1. steel pin dry hanging method: this method, also known as pin hanging method, is the earliest and simplest method of dry hanging stone.

Second, back bolt dry hanging method: Granite stone is hung on the back of the stone by back bolt dry hanging, and the metal part is connected with the keel on the wall by anchor bolts, which is an advanced dry hanging technology of stone in the world.

Third, through-slot dry hanging method: the principle is similar to that of single-limb short-slot dry hanging method, except that the long clip is used to slot up and down. In the unit stone curtain wall, this dry hanging method is used more.

What are the shortcomings of dry hanging stone materials? I'll introduce them here, hoping to help everyone.