Once the stone curtain wall seepage, will have a great impact on the appearance and performance

The present in our country, stone curtain wall of stone annual usage is already more than 30 million ㎡, no matter in which city, we can quickly find a beautifully designed, using stone material curtain wall of large buildings, however, is associated with stone curtain wall popularity of stone curtain wall pollution, even some of its one-time construction completion inspection and acceptance for less than three years will be filled with surface pollutants, It makes the whole building look old and old.

01. Avoid setting an incorrect drainage system

In many architectural examples, we often find that the same building, under the same material conditions, the pollution degree of different places is often different. If you observe carefully, it is not difficult to find that in some cases, the location of serious pollution will more or less have the problem of water.

Where does the ponding problem come from? Generally speaking, the problem often appears in two aspects, one is to design the drainage slope, but set the wrong drainage direction, resulting in the top water discharge inward, forming a certain water.

Water flow and drive ash, so that dust attached to the stone surface, the formation of water mark, over time, there will be a more serious phenomenon of pollution. On the other hand, the problem of water accumulation may also be caused by the improper setting of drainage pipes.

As a functional existence, the drainage pipes of many buildings are often exposed on the outer surface of the building, and some high-end villas tend to set the drainage pipes within the stone curtain wall in order to pursue the integrity of the facade, which of course can add a lot of color to the appearance.

However, it violates the principle of "form follows function". Once there is drainage pipe water seepage, it is difficult to investigate in the first time, and it is often not found until the water seep out of the stone panel. By then, it will be too late.

These two factors causing water hidden danger are easy to be neglected in architectural design in recent years. As a result of long time sewage infiltration, will cause irreversible damage to the strength and appearance of the stone itself.And such problems as drainage pipe rupture, it is often difficult to check for the first time, so in actual operation, we should try to avoid setting the wrong drainage system, as far as possible to avoid these hidden water.

02. Try to choose the right surface material

There are many kinds of stone, different stone products, durability, corrosion resistance, weathering resistance are different.

Nature, also have many stone material to suit to be used indoors merely, and cannot be competent outdoor complex and changeful natural environment. If used for a long time, its performance, hardness and so on will be affected to a certain extent.

Additional, still have a few stone material, be like sandstone, surface pore is more, as time passes, because breed mold easily and produce black spot, grow green moss even, bring very big trouble to nurse a job.

Therefore, in practical work, we should make a case-by-case analysis. Through careful investigation and analysis of the climate conditions around the building, the actual needs of the project design, as far as possible to choose the appropriate stone as curtain wall material, such as granite.

Of course, before installation, we should also pay attention to the processing of the opposite material. On the one hand, after selecting the appropriate stone panel, it is necessary to soak the six sides of the line for protective treatment to avoid its external exposure to other pollution sources.

To ensure the construction of waterproof measures in place, can not leak brush; On the other hand, for the base surface of the original large pores, cracks, inequality defects, also need to repair and wipe as far as possible.

03. Install insulation in a proper manner

Many stone curtain wall installation process, often accompanied by the filling of insulation materials. In many practical cases in the past, the staff generally use thermal insulation cotton.

In most cases, when thermal insulation cotton is transported to the site, its outer surface will be wrapped with a layer of aluminum foil, to isolate water, keep the dry role of thermal insulation cotton, but many construction units do not understand its use, simply think that it is only packaging, in the construction process will tear it everywhere.

As a result, once the plum rain season occurs, the thermal insulation cotton fully absorbs water and its weight increases, resulting in collapse from the original structure, which makes the thermal insulation material unable to play an effective thermal insulation and energy saving effect.

More seriously, the collapse of thermal insulation cotton leads to the accumulation of waste cotton at the bottom, and the thermal insulation cotton with enough water absorption is close to the stone panel and connector, which is not only easy to cause oxidation, but also leads to the formation of uneven water spots from the depth of the pores in the stone. Therefore, in the actual operation process, we should also pay attention to the correct way to install insulation materials.

In the early stage of building construction, the impact of inferior transfer pendants on the building will not be great, but with the growth of service life, the galvanized layer on the metal surface will be worn away, and iron oxide will be formed under the action of water oxidation, and rust is easy to gradually permeate through the connecting part, resulting in rust marks on the stone panel.

Therefore, in the construction process, we should also strictly control the quality of the transfer pendant, in order to avoid the occurrence of such accidents.