Roofing and Ceiling Insulation

Established in 1984

Thermguard is the original Cellulose Fibre Insulation in South Africa. It is manufactured with over 40 years of product development and industry knowledge. Fit the original proven product.

Eco Friendly

Thermguard is made from 80% recycled newsprint in a low-energy process, making it an extremely eco-friendly product. Preserve the planet with Thermguard.

Thermal Properties

Thermguard will prevent up to 91% of the heat generated in the home from escaping upwards through the ceiling in winter and will keep 88% of summer heat out as well.”

Fire Retardant

Manufactured from recycled newsprint with harmless household additives to make the product fire retardant and insect and rodent resistant.


Thermguard Cellulose Fibre Insulation

THERMGUARD is an established and trusted thermal insulation product manufactured in South Africa. Since production began in 1984, we’ve successfully insulated households and industries countrywide.

Our cellulose fibre insulation is made from recycled newsprint mixed with mined inorganic salts to make it fire retardant and insect and rodent resistant. Thousands of tons of newsprint that could have been sent to fill up landfills are milled into our light cellulose insulation product with optimal density, which is then blown onto your ceiling. As a result, cellulose insulation fits effectively into all the hard-to-reach nooks and crannies, ensuring the best possible coverage for superior results.


Ceiling insulation reduces the flow of heat through the roof by up to 92%. THERMGUARD will keep your home naturally temperate and more comfortable year-round by preventing heat gains and losses. As a result, you won’t need to rely on air-conditioners and heaters as much, which translates into significant savings on electricity bills. In addition, THERMGUARD will keep 88% of summer heat out as well.


THERMGUARD eco insulation slows the burning of fossil fuels by saving electricity in your home and is made from 80% recycled newsprint. In addition, THERMGUARD has an extremely low embodied energy, preventing greenhouse gases at both the consumer and producer end of the product, resulting in a “double green” effect. Furthermore, THERMGUARD is delivered in bags made from recycled plastic, making every aspect of our product environmentally friendly.


THERMGUARD has a countrywide network of approved contractors who install our product according to our instructions. Assessment of your ceiling, safe covering of downlighters and appropriate placement of insulation are all key areas where our professionals have a wealth of expertise. Ceiling insulation is only as good as its installation because any gaps would decrease the effectiveness of the material installed.

Installation of THERMGUARD insulation is quick and efficient. A team of two can easily install 300 m2 in one day. One person operates the machine, and one directs the hose. THERMGUARD is installed by emptying bags of insulation into a machine which aerates and blows the insulation through a hose and into the ceiling void, where it can be installed to any thickness.

THERMGUARD is non-toxic and non-irritant, so it can safely be spread or moved by hand should maintenance be required.


THERMGUARD can reduce the product’s density by 20%, allowing more air to be trapped between the fibres for a lighter, less expensive product with superior insulation values.

The cellulose fibre is loose-fill insulation and is blown onto your ceiling. In addition to maintaining comfortable temperatures within your home, cellulose fibre is an effective soundproofing material. THERMGUARD is four times as dense as glass fibre and has excellent acoustic values. The roof insulation layer will also prevent sound from travelling between rooms through the roof space.

THERMGUARD is treated with fire-retardant additives and can withstand the heat of a blowlamp without melting or emitting toxic fumes. Furthermore, the additives in THERMGUARD are harmless to humans but irritate insects and rodents, preventing them from living in the fibres. As a result, fitting our product is an effective form of pest control in your roof. And THERMGUARD is non-allergenic, making it a smart choice all round.

Finally, THERMGUARD offers a lifetime guarantee* and is competitively priced. Combined with the decrease in your electricity bill due to effective thermal control, our ceiling insulation is a cost-effective choice.


Thermguard cellulose fibre insulation allows more air to be trapped between the fibres providing a lighter, less expensive product with superior insulation values. This makes THERMGUARD the perfect solution for your roofing insulation, ceiling insulation and general insulation requirements.

Green and eco-friendly insulation

Insulation is an essential part of any green home. Ensure you have the maximum insulation for high energy efficiency in your home.

Save on your electricity bill

South African winters can be cold, and generating heat every evening becomes very costly. Conserve your home’s heat with good roofing and ceiling insulation.