Green insulation

As of August 2011, a law was passed making it compulsory to install insulation in the roof when constructing new homes. Think Green Insulation is right on top of this trend but has taken it a big step further. This innovative and truly eco-friendly form of green insulation will ensure your home’s heating and cooling goes off without a hitch.

Think Green Insulation is made from recycled PET bottles and is available in 5 different thicknesses. It has passed all required and regulated tests and is market-approved. Think Green Insulation is a professional product that can be used in dry-walling insulation and ceilings. This insulation sheet will keep a building cool in the summer and warm in the winter, improving heat regulation and minimising the need for artificial temperature control systems.

Millions of plastic bottles end up in South Africa’s landfills every year. Finding ways to manufacture useful recycled products from these bottles will not only shrink landfill sites but will also support the construction industry in finding sustainable building solutions. Think Green Insulation is a company that offers an insulation to clients that’s manufactured from 100% recycled plastic polyethylene terephthalate (PET) bottles.


A prevailing demand for polyester fibre continues to provide the most economic end-use for South African recycled PET, and demand currently exceeds supply. In South Africa, Gauteng generates the most PET postconsumer products at 55% of the national total, followed by the Western Cape with 13%. Recycling one ton of plastic bottles saves 1.5 tons of CO2 versus landfill or incineration processes. More than 1.4 billion PET bottles have been recycled in South Africa to date.

Discarded post-consumer PET bottles are collected, baled and delivered to the recycler. In the recycling plant, the bottle tops are removed and the bottles are inspected and sorted according to colour and material. The sorted bottles are washed and then conveyed to a granulator, where they are reduced to flakes before being screened. These flakes are then washed and dried and conveyed to an extruder where the material is turned into pellets. The finished product takes the form of small clear pellets, which are supplied to end-users for production into a number of everyday household items.

Think Green Insulation can also be used to manufacture geyser blankets and silver lining insulation for air conditioning ducting.

This article was sponsored by Think Green Insulation

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