Case Study


Thermguard has successfully insulated buildings across South Africa for more than 35 years, using cellulose fibre, which has many advantages in making homes more comfortable, quiet and energy efficient. Insulation assists in keeping a space cool or warm depending on the season, thus reducing energy and electricity requirements and costs, and its excellent acoustic properties aid in reducing external noise from neighbours, traffic, and aircraft. Thermguard is also a passive, yet effective form of pest control. Green from start to finish.

As a “green” solution, Thermguard offers significant benefits to the environment. For starters, Thermguard Cellulose Fibre Insulation is made from recycled newsprint; thousands of tons of which would otherwise be filling up landfills.  This is milled into a light cellulose insulation product with optimal density, which is blown onto the ceiling in the roof. The non-recycled, fire-retardant additives are non-toxic and natural salts and minerals which are used: in agriculture to promote plant health; to stop and prevent wet and dry rot in timber; and also have various uses in the household and medical fields. Borate additives are harmless to humans and pets but will irritate insects and rodents such that they will not live in the material or use it to build a nest. 

The embodied energy of Thermguard is also by far the lowest compared to other commercially available insulation products. Furnace-made insulation materials (fibreglass and polyester) require around ten times more energy to make compared to cellulose fibre. In addition, no heat or water in used in the manufacturing process. Thermguard is 100% biodegradable and will not negatively affect ecosystems or wildlife. With Thermguard being delivered in reusable bags there is the assurance that every aspect of the product has been considered from a sustainability perspective. 

A DIY option 

Now, home owners can take care of the insulation process themselves and not use a sub-contractor, should they wish to opt for Thermguard’s DIY option. The installation is quick and a team of two can easily install 300m² in one day, with one person operating the machine (which can be rented or purchased from the Thermguard factory, currently limited to Gauteng) and the other directing the hose in the roof space.