Installers & Distributors



Isotherm insulation is dust and allergy free.
It contains no hazardous chemicals
and is friendly to the environment.


In fact, with Global Warming and Climate change affecting weather patterns all over the world, it is now more than ever important that we insulate our homes. ISOTHERM INSULATION is one of the most eco-friendly insulation products available.

The 145mm Isotherm will reduce heat flow into the home by as much as 90%. This will result in reduced need for heating and cooling. As we know this is the major cause of Global warming.

So insulate your home and improve the temperature by up to 4-8 DegC.

Summer Benefits

  • In summer the roof space heats up on hot sunny days.
  • The heat in the roof space heats up the ceiling in the home.
  • In fact, this can heat up the inside of the home as much as 4-8 DegC.
  • This insulation will reduce this heat flow by as much as 90%.
  • Making the home cooler on hot summer days.



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Winter Benefits

  • In winter the roof space gets freezing cold.
  • This makes the ceiling space cold.
  • As we know warm air rises and will be lost to the roof space in seconds.
  • Install ISOTHERM  and reduce heat loss by as much as 90%..
  • Making the home much warmer in winter.

Global Warming And Insulation

In fact, global warming is very real. It is estimated by scientist that in 2050 sea levels will rise by 1 meter. This rise in sea levels will wipe out as much as 20% of the low lying land.  At the same time currently, weather patterns are changing dramatically.

With highest levels of Record high temperatures annually. At the same time in other areas of the world are we having record lows in some countries. It is clear that climate change is here to stay.

  • Our options are to reduce our carbon footprint. Drive cars that are more fuel efficient.
  • Insulate our homes to reduce the need for pollution creating heating and cooling.
  • In fact, properly insulated roofs will reduce the need for energy by up to 35%.




Our Isotherm Insulation prices are available for all builders as well as developers and the DIY installer. in fact, the customers that buy their Insulation from us will get telephonic support to be sure the insulation is installed correctly.

Our prices are unmatched on all ISOTHERM INSULATION prices. We hold large stock levels of all sizes and variants of the insulation products.

100mm Isotherm Insulation
6000 x 1200 x 100mm
R 287.90 Per Roll
(R 47.98 Per m2)
  • Thickness: 100mm
  • Area Roll: 7.2m2
  • Length: 6m
  • Width: 1.2m
  • R-value: 1.81
  • Installed R-Value: 2.16
  • Mass: 10kg
75mm Isotherm Insulation
8000 x 12000 x 75mm
R 287.90 Per Roll
(R 29.99 m2)
  • Thickness: 75mm
  • Area Roll: 9.6m2
  • Length: 8m
  • Width: 1.2
  • R-value: 1.36
  • Installed R-value: 1.76
  • Density: 10Kg3
135mm Isotherm Price
5000 x 1200 x 135mm Thick
R345.50 / Roll
(R57.59 per m2)
  • Thickness: 135mm
  • Area Roll: 6m2
  • Length: 5m
  • Width: 1.2m
  • R-value: 3.37
  • Installed R-Value: 3.77
  • Mass: 9.315kg
145mm Isotherm Insulation
5000 x 1200 x 145mm Thick
R399.85 Per Roll
(R66.64 per m2)
  • Thickness: 145mm
  • Area Roll: 6m2
  • Length: 5m
  • Width: 1.2m
  • R-value: 3.37
  • Installed R-Value: 3.77
  • Mass: 11.5kg

Reasons to Install Isotherm

Isotherm is one of the safest Roof Insulation products available on the market.

This makes this insulation one of the favorite products for Home Owners. product for almost any application.

  • Environmentally friendly
  • Dust free
  • Allergy-free
  • Save energy
  • Cool in summer
  • Warm in winter
  • 30-year manufacturer guarantee
  • Great Thermal Insulation properties
  • Reduce Mould and associated bacteria
  • SABS approved
  • SANS compliant ISOTHERM.

Roof Insulation Is Compulsory

  • In all new homes as of January 2013, all new homes must be insulated with SANS compliant roof Insulation.
  • This legislation is brought about to reduce energy and reduce our Carbon footprint.
  • South Africa has been divided into zones.
  • Each zone must install insulation with the specific R-value for the region.
  • The Western Cape Johannesburg and Pretoria are zoned to install insulation achieving an R-value of 3.70.
  • In fact, this will be achieved by installing the 145mm ISOTHERM.
  • This Roof Insulation product will achieve an installed R-value 3.76.



Insulation Makes Your Home Cooler in Summer

In fact, the great Thermal Insulation Properties of Isotherm Insulation will reduce heat flow into the home by as much as 90%. This means that the heat that is trapped in the roof space from the hot summer days will not enter the home via the ceiling space.

Reducing this heat flow makes the home far more comfortable to live in. Reducing temperatures in the home by as much as 4 to 8 degrees C. This reduction in heat will reduce the need for expensive energy depleting air conditioners.

In most cases, the reduction in heat will mean that you will not have to run the Air conditioner. In fact, in homes were the Aircon is needed the energy consumption will be far lower. The cold air will be from the aircon will not be lost to the roof space.

In homes without insulation ceiling temperatures can be as high as 60 degrees C when measured on a hot day. This is like underfloor heating that is above your head in summer. Reducing this heat flow makes a massive difference in the home. READ MORE

Insulation Makes Your Home Warmer in Winter

The winter benefits of Isotherm Insulation are equally great. The Isotherm Thermal Insulation reduces the loss of warm air in the home. In fact, even without any heating, the Isotherm will improve average temperatures in the home significantly.

Once again, the need for heating will be reduced significantly. In fact, heat generated in the home will not rise and be lost to the roof space. The Roof Insulation will restrict the heat loss via the ceiling by 90%. Read more 

Select The Right Insulation for Your Homeisotherm insulation benefits

In fact, Isotherm Insulation is suitable for most application in the home. Make sure that you select the correct Isotherm product for your home.

Isotherm Thermal Insulation can be installed in drywalling as well as Roofs. The lifespan of Isotherm Thermal insulation is one of the best on the market. This makes this insulation great for Dry walling as well as for Roof Insulation.

The new building legislation or SANS legislation allows for a specific R-value of Roof Insulation for all new homes. As of January 2013, all new homes must install Roof Insulation that is SANS compliant.

The Western Cape Must Install the 145mm Isotherm Insulation as this will give the required R-value 3.70 when installed.

Johannesburg and Pretoria must also Install the 145mm Isotherm Thermal Insulation that will achieve the required R-value.

This legislation is designed to reduce the need for heating and cooling as South Africa struggles with ESCOM electricity costs. In fact, throughout most 1st world countries Roof Insulation has been standard in all homes for many years. The reason for this is to reduce the need for energy and to reduce the impact of Global Warming.

Insulated home requires far less energy annually than uninsulated homes. In fact, it is understood that insulated homes will recover the cost of Roof Insulation in two to three years. Thereafter giving years of energy saving.

Important Factors When Installing Isotherm Insulation

Installing Roof Insulation in your Roof Space is one thing, however, making sure that your insulation is not a fire hazard is another. The fact is the Isotherm Insulation will not burn as the Insulation has a B/B 1/2 fire rating. This means that the Isotherm will not sustain a flame. Read more.

  • No Roof Insulation products should cover the downlights in the home. This could potentially cause a fire. When the downlight holes are drilled and the hole is under a beam or through the wooden batons the light will still be fitted in this position. The trouble comes when the Roof Insulation covers the light the heat is stored is a small area with no escape. This heat build up could cause the timber to burn. In fact, ALL DOWNLIGHTS MUST HAVE A BREATHING HOLE IN THE INSULATION.
  • Beware of fitting cones over the downlights as these can also be a fire hazard. The cones get hot from the heat of the downlights and this can cause the cone to melt into the downlight wires.
  • Electrical wires in the roof space wherever possible must be lifted above the insulation.
  • All Insulation products must be installed from end to end without gaps.
  • Always installed SANS compliant Roof Insulation and save on energy.

Isotherm Insulation Installers

Installing Ceiling Insulation in your home means absolutely nothing if the insulation is not installed correctly. Therefore, it is important to use the services of qualified Isotherm Insulation Installers.

Our Isotherm Installers are all well trained and are all permanent staff.

All our workmanship is covered by our five-year workmanship Guarantee.

In fact, each team of Insulation Installers is supervised from start to finish. We do not leave a few workers at your home and collect them after the Installation.

We have comprehensive insurance for your peace of mind. To date, we have never submitted a claim.

From Pollution to Eco-friendly Insulation

Isotherm is manufactured from PET Plastic Bottle pollution. In fact, we all know the cost to the environment with PET plastic bottles and plastic in general. Coke and Fanta bottles will not biodegrade easily in most cases this can be up to 400 years.

Making use of what would be pollution to the environment for many years is a winner. In fact, Isotherm itself is also recyclable. Making Isotherm one of the most most-friendly insulation products in the world.

The PET is converted into fibers that are eventually converted into Isotherm Insulation. Read here what PET pollution is.

Isotherm Rolls

The Sans compliant Isotherm for the Western Cape as well as Johannesburg and Pretoria is the 145mm Isotherm Insulation. This product comes in two widths.

  • 145mm Isotherm Roll size 5000L x 1500W (Two Rolls of 750mm Side by side to give the width of 1500mm) These rolls are ideal for tiled roofs with the main beam widths of approximately 700mm. This makes for a nice tight fit with no air gaps.
  • 145mm Isotherm Roll size 5000L x 1200W (One Roll 1200mm Wide) This roll is ideal for sheeting roofs that have the Beams at 1150 mm wide.

How to Cut Isotherm Insulation

In fact, this insulation can’t be cut with a wood saw. The Isotherm has a high tensile strength. The best way to cut the insulation down to size when installing as a DIY installer or builder is to tear the insulation.

Isotherm Thermal Insulation can’t be torn along the length the insulation can only be torn across the width. Ideally, our installers will do this as they are installing the insulation. This might seem like a lot of work however the process is done very rapidly, and an average home is insulated by our installers in about two hours.

All customers that are opting for a DIY installation option will have our delivery man show you how to cut the Isotherm.

Isotherm Insulation Price

We are pretty confident that our Isotherm Insulation Price is the best in the country. For the best prices, for Isotherm Insulation call our office or complete one of our Contact Us or Request a Quote. Alternatively, visit our Isotherm Pricelist Page.

  • In fact, we stock all types of Isotherm and all sizes.
  • For the best Isotherm Installed Price you are at the right place.

Isotherm Thermal Insulation

For a lifetime of energy saving and comfort Install Isotherm Thermal Insulation in the roof space of your home. In fact, because Isotherm Insulation has a 30-year manufacturer guarantee you can be assured of a lifetime of energy saving and comfort.

The fact is that good quality Thermal Insulation for your Roof space will save energy and pay for itself in two to three years on energy saving alone. Installing the correct Roof Insulation with the R-value for your region is critical. The R-value for the Western Cape as well as Johannesburg and Pretoria is 3.70. This is found in the 145mm Isotherm Thermal Insulation.

In fact, when installed this insulation exceeds the R-value requirements with an installed Value of 3.76. This is great as the Thermal Insulation properties exceed the recommended requirements. Read more on Isotherm Thermal Insulation.

Does Your Home Need Insulation?

This is a very simple question to answer. In fact just looking at your electricity bill in winter or summer should tell you. Also coming home to a very hot home in summer and a freezing cold home in winter.

Insulation reduces the heat flow into the home by as much as 90% in summer and reduces the loss of heat in the home in winter. This, in turn, reduces the need for costly heating or cooling. Read more


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