how much you know Exterior wall hanging boardhow much you know Exterior wall hanging board
From the architectural point of view, the external wall hanging board is a construction method, which is to hang the board on the outside of the wall through dry hanging and other construction methods to achieve decorative or thermal insulation effects. From the product's point of view, the external wall hanging board is a type of building material, which is a building board used for external walls. The external wall hanging board must have the basic properties of anti-corrosion, high temperature resistance, anti-aging, no radiation, fire prevention, insect prevention, no deformation, etc. At the same time, it also requires beautiful appearance, simple construction, environmental protection and energy saving. Common external wall hanging boards are fiber cement board, aluminum plastic board, PVC board, stone and so on.
Chinese name External wall hanging board effect decoration or aesthetic effect interpretation Special panel type decorative material fixed on the surface of the building external wall
table of Contents
1 Hanging board classification
▪ Fiber cement external wall hanging board
▪ Metal external wall hanging board
▪ PVC external wall hanging board
▪ Solid wood wall hanging board
▪ Stone external wall hanging board
2 Common features
3 Comparison of various hanging boards
Hanging board classification
Fiber cement external wall hanging board
The use of fiber cement board for exterior walls is already common abroad, but it is the most popular in China
Things in recent years. Due to the fire and corrosion protection, thermal insulation, anti-aging, no radiation, low cost, energy saving and environmental protection, and easy construction of the fiber cement outer wall board, it is easy to sculpt and can create a simple and natural architectural style. Use, such as the China Theme Pavilion of Shanghai World Expo, the Badminton Hall of the Ministry of Public Security, etc. With the progress of society, fiber cement external wall hanging boards will be more and more used in various building walls, and become the mainstream of construction like foreign countries.
Metal external wall hanging board
Metal external wall hanging boards can also be divided into two categories. One type is the composite material hanging board, which has three main parts
Composition, the surface is a high-quality color-finished metal plate treated with a special coating, the middle layer is a flame-retardant hard high-density polyurethane foam thermal insulation layer, the bottom is aluminum foil protection that plays a role in thermal insulation and moisture resistance Floor. The metal outer wall hanging board itself has the characteristics of thermal insulation, waterproof and flame retardant, lightweight earthquake resistance, convenient construction, sound insulation and noise reduction, green environmental protection, beautiful and durable, and because of its simple and practical assembly method, it is not subject to seasonal environment restrictions , So installation and use is very safe and convenient, suitable for all seasons. This innovative exterior wall panel highlights the advantages of the new board. But the price of materials is relatively high. The second category is single-layer metal external wall hanging board. It is made of high-quality coated steel for construction. Compared with the composite metal hanging board, in addition to the lack of thermal insulation effect, other performance is also excellent, and the material price is much lower. This kind of hanging board conforms to the domestic steel structure and the increasing trend of simple structure, and has been more and more widely used in recent years. At the same time, because of the excellent architectural appearance performance of the single-layer hanging board, it is also used in the field of architectural curtain walls, more and more replacing traditional curtain wall materials.
PVC external wall hanging board
PVC external wall hanging board, which is a plastic profile mainly made of hard polyvinyl chloride, used for the external wall of the building;
The role of decoration. The PVC external wall hanging board can also be recycled. The energy consumption in the manufacturing process is lower than that of cement and ceramic tiles. It is a green building material that is conducive to environmental protection. The installation and installation of PVC external wall hanging board is simple and fast, and can be combined with walls of various structures; all dry construction is basically not affected by the season; it is easy to clean during use (it can be sprayed and rinsed), and does not require maintenance (no paint and paint ); The performance-price ratio is high, the outer wall hanging board also has the advantages of flame retardant, moisture resistance, corrosion resistance, aging resistance, etc., and the service life can reach more than 30 years. The rich, traditional colors and fine grain texture will make the house protection bright and new. The color of the hanging board comes from the body of the product, and the phenomenon of brittleness, shedding and blistering of the ordinary paint surface will never occur. It is also different from wood. It is rotten or bent and deformed due to moisture. What is more important is that the PVC outer wall hanging board protects the house with a solid layer of vinyl material. The solid polyethylene material structure design can resist the attack of bad weather, making the residence for many years. new.
Solid wood wall panel
The solid wood exterior wall hanging board is of an affinity material and beautiful texture. Wood is the earliest natural material used by mankind
The only renewable and naturally degradable biological resource in the world ’s four major materials, wooden wallboards have small volume, high strength, vibration resistance, vibration resistance, low acoustic and thermal conductivity, good electrical insulation, impact resistance, strong durability, and Elasticity and toughness, easy to process. The raw material of the external wall solid wood hanging board is anti-corrosion wood which uses water as a solvent to dissolve the effective anti-corrosion agent in the water and inject it into the wood cell tissue under certain process conditions to achieve the anti-corrosion function. Commonly used wood species are Pinus sylvestris var. Mongolica, Southern pine, red cedar, etc., and the treatment chemicals are CCA, CA (copper azole), ACQ, etc.
Stone exterior wall hanging board
Stone is also a common external wall hanging board, he has most of the functions required by the external wall hanging board
Yes, it is also used by many buildings. The defects of stone are: firstly, some stones have radiation, which will cause some harm to human body; secondly, stone is a non-renewable resource and expensive; thirdly, it is heavy and has high requirements for external walls and steel structures.
1. Good decoration
Fiber cement board and wood and stone belong to natural colors, which are more natural and simple. PVC boards and metal boards are designed with imitation wood grain and other patterns, and the colors of hanging boards are rich.
2. Wide range of use:
All are resistant to severe cold and heat, durable, UV-resistant and aging-resistant. It has good corrosion resistance to acid, alkali, salt and wet areas. No pollution, can be recycled; good environmental performance. It is easy to clean and eliminates post-maintenance.
3. Fire performance:
Stone has the highest fireproof performance, fiber cement board is A1 grade, followed by PVC outer wall hanging board; oxygen index is 40, flame retardant and self-extinguishing from fire; meets national fire protection standard B1 grade (GB-T8627-99) The outer wall hanging board is B2 grade, if the wooden outer wall hanging board needs to meet the fire protection requirements, it needs to be painted with fire retardant paint.
4. High energy saving:
The inner side of the PVC outer wall hanging board can be easily installed with thermal insulation materials such as polystyrene foam, so that the outer wall insulation effect is better. ". The metal outer wall hanging board combines the insulation material polyurethane with the metal steel plate. The insulation effect cannot be compared temporarily, depending on the thickness of the insulation material. However, at the same thickness, the polyurethane has twice the insulation effect of the benzene board.
5. Partial waterproofing:
The PVC outer wall hanging board adopts lock-and-hang connection, which can play a role of partial waterproofing, and the metal hanging board is the same.
6. Convenient installation and low price:
All are dry construction; easy to install and reliable. The project of using external wall hanging board decoration is the most labor-saving and time-saving decoration and decoration plan. In case of partial damage, it is only necessary to replace the new hanging plate in this part, which is simple and quick, and convenient for maintenance.
7. Long service life:
The longest life of stone is more than 50 years for fiber cement board, more than 30 years for anti-corrosion wood, the service life of PVC exterior wall hanging board is at least 25 years, and the product life of Geloy products with double-layer coextrusion and Geloy is more than 30 years If the metal hanging board adopts fluorocarbon paint, it can reach more than 15 years.
Comparison of various hanging boards
PVC hanging board has the lowest cost, followed by fiber cement hanging board, solid wood exterior wall board again, metal board again, stone is the most expensive.
2. Labor efficiency
The PVC hanging board is the highest, followed by the fiber cement hanging board, the solid wood exterior wall board again, the metal board again, and finally the stone.
3. Fire performance
Stone is the best, followed by fiber cement board, followed by metal board, and finally solid wood exterior wall plate and pvc hanging board.
4. Weather resistance time
Stone is the best, followed by fiber cement board, solid wood exterior wall board again, metal board again, and finally pvc board.