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Over the years, global warming will cause the air temperature of the skin prick. We need to take action to avoid the damage to the world. Only of them is  greenhouse. In fact, green housing, simple materials, the most expensive form of different forms, the formation of complex and expensive materials. Roofing materials can be glass or plastic cover. Plastic materials, but no more than glass, etc., less: the resistance, you can adjust the shape of the design changes and easy to use. As greenhouse covers, including some types of plastic:

1. Acrylic

Acrylic acid is a very anti-climate change position and very transparent. In the ultraviolet from the sun is very high absorption of glass materials. 2 Acrylic able to produce about 83% of the cases, a decrease of about 20-40% of the heat loss of the use of layers to use more than one layer. This material will not yellow, even in the long-term use. However, an acrylic material: highly flammable, extremely expensive and difficult to cut / lack unable to resist scratches.

2. Polycarbonate

Polycarbonate features: more powerful, more flexible, thinner, cheaper than acrylic. About 75-80% of the two polycarbonate light transmittance, heat loss can be reduced by about 40% higher than layer, the use of layers. However, this material is easy to cut, easy expansion, easy-to-yellow, and this year, the transparency of the lower-level (although proposed a new type, rather than the rapid turn yellow).

3. Glass fiber reinforced polyester

This material features: more durable, it seems attractive, reasonable prices, compared with the glass, but also to adapt to climate change, the impact of fiber reinforced plastic glasses. Plastic materials can easily be a wave-shaped plate shapes and forms. However, such materials, the lack of easy to extend.

4. Polyethylene film

This material is very cheap compared to other materials, but it is only temporary (decline), in an appeal for drugs or treatment. In addition, this material is also very easy to damage the sun, but it can accommodate more in-depth treatment, at least 1 – 2 years. As widely reported in the material, no more more than a framework that can provide the greatest light.

5. Polyethylene film Cholride

The performance of these materials is very large, from these materials can create a large number of emission wavelength, the temperature is not high, as a barrier to UV light at night is not enough. Polyethylene film of this material prices, often dirty, and should continue to do clean-up delivery to win a better light.