Building insulation materials jagged, shredded, or scuffed). When found in the home, asbestos often resembles grayish-white corrugated cardboard coated with cloth or canvas, usually held in place around pipes and ducts with metal straps. Things that typically might contain asbestos: All polyurethane foams are composed of petrochemicals. Foam insulation often uses hazardous chemicals with high human toxicity, such as isocyanates, benzene and toluene. The foaming agents no longer use ozone-depleting substances. Personal Protective Equipment is required for all people in the area being sprayed to eliminate exposure to isocyanates which constitute about 50% of the foam raw material. Fiberglass is the most common
Building insulation temperature standard in China, most old residential and commercial buildings in China doesn’t have any thermal insulation, even in the area that suffer a severe weather which is hot in summer and cold in winter. And the insulation material that often used in the new buildings of China is Styrofoam, which has difficulties in installation and low effectiveness of thermal insulation. Another problem is that the Styrofoam is not fireproof material, it will be a hazard if this material is widely used. Unlike the United States and Australia, the government institutes haven’t established a common standard about thermal insulation. More