Gourmet exterior wall stone refers to the stone used for building exterior wall decoration, which has the function of protecting the wall and beautifying the building.

There are many types of exterior wall stones, the more common ones include marble, granite, sandstone and slate.

The construction methods of exterior wall stone can be divided into three types: dry hanging, wet pasting and direct pasting. Different installation methods are suitable for different walls and stones. When installing exterior wall stone, you need to follow the construction specifications for exterior stone curtain wall. After installation

Regular maintenance is also required.

Let’s learn about the construction and maintenance methods of exterior wall stone with the editor of 51Dongshi.

What are the marble exterior wall stones? 1. Advantages Natural marble is one of the commonly used exterior wall stone types. Marble has a dense structure, good compressive strength, natural texture, and strong decorative properties.

2. Disadvantages: Marble stone is prone to color difference, lacks elasticity, and is easily contaminated.

3. Application of marble is generally only used for interior decoration surfaces of buildings. A small number of marbles such as white marble, mugwort and other relatively stable and durable varieties with pure quality and few impurities can be used outdoors.

Granite 1. Advantages Granite is also a common exterior wall stone. It has the advantages of beauty, durability, safety, versatility and other advantages.

2. Disadvantages: Natural granite has a single color, is difficult to construct, and is relatively expensive.

3. Application Granite is mostly used for wall foundations and exterior wall finishes of buildings. Using technological processing, it can be used as external curtain walls in high-rise and super high-rise buildings.

Sand and gravel 1. Advantages Sand and gravel has uniform particles, fine texture, and loose structure, so it has a high water absorption rate. It has the characteristics of sound insulation, moisture absorption, damage resistance, weather resistance, fading resistance, insolubilization in water, and no radioactivity.

2. Disadvantages: obvious color difference, easy to turn yellow and dirty, easy to crack and leak, easy to soften and shed sand.

3. Application Slate is mainly used for building tiles, exterior floors, interior floors and exterior walls.

Slate 1. Advantages Slate is very hard and wear-resistant, has good water resistance, is easy to clean, has rich colors, and can adapt to a variety of decorative styles.

2. Disadvantages: It is more expensive, has a cold texture, and has poor sound insulation effect.

3. Application Sandstone is mostly used in building exterior walls, interior decoration, garden landscaping, etc.

Details >> Exterior wall stone specifications Thickness requirements for exterior wall stone According to the "Technical Specifications for Metal and Stone Curtain Wall Engineering" (JGJl33-2001), the thickness of dry-hanging stone for exterior walls should not be less than 25mm.

In actual construction operations, the thickness of exterior wall stone is generally around 28mm-30mm.

The length and width of exterior wall stone The length and width of exterior wall stone should be determined according to the design style of the building. It is generally about 60cm. The length can be cut according to your actual design needs. The width can be customized or seamless during the construction process.

splicing.

Tips for purchasing exterior wall stone. Look at the appearance. When purchasing exterior wall stone, you can pay attention to the surface structure of the stone. The surface of high-quality exterior wall stone is very delicate, and the edges are very smooth, with no minor cracks or missing edges.

When purchasing exterior wall stones, you also need to pay attention to the size specifications of the stones, so as to avoid incorrect dimensions that will affect subsequent construction, and will also cause the patterns and lines of the stones to be deformed after splicing, affecting the decorative effect of the exterior walls.

Listen to the sound When you go to a physical store to buy exterior wall stone, you can gently tap the exterior wall stone to listen to the sound. The knocking sound of good quality exterior wall stone is crisp and pleasant, while the knocking sound of inferior exterior wall stone is rough.

Pay attention to product information. When purchasing exterior wall stone, you also need to carefully check the product information, including manufacturer, production license, quality inspection report, etc. Do not ignore this information just because the price of exterior wall stone is low.

What are the construction methods for exterior wall stone? Dry hanging of exterior wall stone uses metal pendants to hang the facing stone directly on the wall or on the steel frame without grouting and pasting.

Dry hanging can improve the firmness of exterior wall stones and is the main practice for high-end building exterior walls.

Wet pasting of exterior wall stone is also one of the methods of exterior wall stone. Wet pasting requires first making a layer of steel mesh on the exterior wall of the building, and then wet-pasting the exterior wall stone with concrete.

Wet stickers are mainly used in self-built houses in rural areas.

Direct pasting of exterior wall stones can be divided into two methods: point pasting and surface pasting. Surface pasting is more suitable for the construction of thin stones, while point pasting is suitable for the construction of slightly thicker exterior wall stones.

Details >> Exterior stone curtain wall construction specifications There are many exterior wall stone construction specifications, which are based on the acceptance of different processes and construction materials. The following is a brief introduction to several commonly used specifications: "Building Curtain Walls" (JGJ3035-1996); "Metal and Stone

"Technical Specifications for Curtain Wall Engineering" (JGJ133-2001); "Quality Inspection Standards for Building Curtain Wall Projects" (JGJ/T139-2001); "Quality Acceptance Standards for Building Curtain Wall Projects" (GB50210).