Membrane structure sunshade It is a kind of facility that we can often see in our life. It provides us with a cool place in the hot summer and a shelter in the rainy day. It is a facility that is usually inconspicuous, but is needed everywhere. It can be said that it is closely related to people's life. The sunshade has a wide range of applications, including shopping malls, parks We can see it in residential areas, scenic spots, amusement parks, and roadside. They have different shapes and materials, such as PE waterproof canvas awnings, PC board awnings, membrane structure awnings, etc. Today we will compare the advantages and disadvantages of awnings made of different materials.
PE waterproof canvas awning
Advantages: PE waterproof canvas is mainly made of polyethylene resin by extrusion and blow molding. It is characterized by more selective colors, soft texture, light material, easy modeling, good light transmittance, and does not emit harmful substances. In addition, its price is very cheap, only a few yuan per square meter. It is widely used in sunshade cloth, floor film and other places.
Disadvantages: PE waterproof canvas has poor weather resistance, poor thermal insulation, poor waterproof and abrasion resistance, and is not easy to be bonded during construction. It is a kind of shed cloth material with short service life.
Conclusion: PE waterproof canvas is often used for temporary sunshades because of its low price and pleasing color. Moreover, due to its poor physical performance, the sunshade insulation effect is general. It is not recommended to use this material for sunshades with certain requirements on grade and service life.
PC board sunshade
Advantages: PC board is made of polycarbonate as the main component and co extrusion technology CO-EXTRUSION. It is characterized by high transparency, light material, strong impact resistance, sound insulation, heat insulation, flame resistance, aging resistance, etc. It is a plastic building material with excellent physical properties and has obvious advantages over traditional glass. It is widely used in sunshades, parking sheds and other facilities in school malls.
Disadvantages: The disadvantage of PC board is that if there is no UV protection coating, it is very easy to age in the outdoor direct sunlight environment. It is not acid resistant and alkali resistant. The PC board used in the outdoor environment needs to be treated with UV coating on the surface. In addition, the PC board has poor flexibility and is inconvenient to transport, which makes the shed relatively simple in shape. During installation, the construction requirements are high, and the PC board cannot contact with the wet cement surface, acid, alkali, and organic solvent materials. The disassembly is also troublesome.
Conclusion: PC board is suitable for permanent sunshade projects because of its excellent physical performance, high light transmittance and long service life, but difficult installation, disassembly and modeling.
Membrane structure sunshade
Advantages: The film material we often use in the film structure sunshade is PVC/PVDF (I have written an article "How many kinds of films are there in the film structure? Comparison of commonly used film materials in the film structure!" for interested friends, you can read it). Its advantages can be summarized as: UV resistance, corrosion resistance, good flexibility, light material, plastic arts, environmental protection and energy conservation Good mechanical performance, fire and earthquake resistance, strong self-cleaning ability, easy installation and disassembly, etc. It can be said that it is a very excellent new building material. It is widely used in various sunshades, commercial ceilings, and landscape sheds. Its service life can reach more than 15 years. It can be said that as a sunshade material, it has natural advantages.
Disadvantages: The price of membrane material is high, and it is basically not resistant to man-made damage (sharp objects scratch the surface of membrane material). If man-made damage is excluded (there are not so many people who have nothing to do now), it can be said that the membrane structure as a shed material has no shortcomings.
Summary: As a new building form, membrane structure has gradually begun to be recognized by more people for its advantages (read the Advantages of Membrane Structure for expansion). Its application range is wide, ranging from large stadium grandstand awnings to small umbrellas of several square meters, which are beautiful and safe Use in places with high quality requirements.
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