"environmental decoration" has become a decoration on the market everyone can use the promotional point of sale. Reporters learned that last year, Nanjing Consumers Association has carried out a "Nanjing indoor air technician survey" activities, according to many home owners to reflect that they use the green building materials.tiling a covered wood porch

But in fact, these owners are using the so-called green building materials, the indicators are relative. These building materials are not formaldehyde-free, no harmful substances in the absolute green building materials. But at present, China is still a lack of authoritative, unified green environmental norms and standards.outdoor deck for sale

According to the current relevant building materials standards, the floor of the formaldehyde emission requirements shall not exceed 0.12 mg / cubic meter, formaldehyde emission in wood-based panel requirements shall not exceed 0.20 mg / cubic meter. According to the relevant provisions of China's indoor air quality standards,discount patio hollow decking