Roofing from garbage

Roofing made from milk cans, recycled beverage boxes are highly appreciated by scientists thanks to their light weight and mechanical strength as well as better thermal insulation and sound insulation than roofing sheets made from etymology. other materials.

Technology for manufacturing roofing sheets from recycled garbage was first introduced in Vietnam in the International Exhibition of paper and chemicals in 2012 (Paper Chem Tech Vietnam 2012).

Corrugated sheets made from recycled milk cans. (Photo: Thi Ngoan)

Paper box covers are widely used in liquid milk, soy milk, and fruit juice industries. This cover consists of 6 layers, most of which are paper and some are aluminum or plastic.

Mr. Hoang Trung Son, representative of the unit producing roof sheets from garbage, said: to produce the components must be separated in used milk carton. The amount of plastic and metal aluminum used to produce roofing, the remaining pulp used to make high-quality paper for carton.

Test results also showed that roof sheets made from milk shell are able to withstand high humidity and heat, better insulation and sound insulation than corrugated iron sheets, thin plastic or fibro cement. bamboo shoots. This type of sheet has a relatively long life, is not aging in harsh environments, suitable for roofing factories, breeding facilities, especially chicken farms to help reduce noise and temperature in the area. camp area.

Many visitors visit the exhibition to find out
Use biological roofing from waste. (Photo: Thi Ngoan)

The recycling line was officially transferred and put into operation in November 2011, handling 50 tons of milk cans to make more than 500 roofing sheets.'The box of recycled paper milk is 100% recycled, if discarded it is a big waste and costly to handle, not to mention badly affecting the environment ,' said Son.

The biggest difficulty for the production unit is to find input materials, because the people have no habit of collecting milk cans as well as other types of beverage boxes. Mr. Son said: "In foreign countries, people have a habit of sorting garbage right from the beginning so the collection is easier, and Vietnamese people often throw paper boxes together with organic garbage so the collection is difficult".

Therefore, Mr. Son said, it is necessary to encourage people to sort garbage and collect milk cans, through activities such as exchanging milk cans for gifts, promotions and giving prizes to individuals or units. Most collected milk cartons.