Isotherm is a polyester type insulation for roofs. This insulation is regarded as one of the most eco-friendly insulation materials for roofs. The fact, that Isotherm itself is recyclable is great. With the great Thermal Insulation properties, this insulation is a market leader. One of our leading products for our DIY installers because it is dust free and allergy free. This Thermal Insulation for roofs will improve internal temperature in the home as much as 4-8 degrees in summer and winter.  

Isotherm Installers

Isotherm Installers

Our teams of Isotherm Installers are all permanent staff. Therefore they are well trained. Furthermore, all our Installers undergo regular training. 

In fact, we do not use the services of casual staff. As a result, we offer a 5-year quality guarantee. We are confident about the service and quality of our work in the roof space.

Installing insulation incorrectly is a waste of money. Installing insulation in a way that is not correct is a waste of money. As a result, there will be little to no benefit from this insulation.

Installing Ceiling insulation with the professionals will ensure lifelong energy-saving benefits. 

Isotherm Summer Benefits

Isotherm Summer Benefits

In summer the roof space of all homes is filled with the sun's radiant heat.

As the day heats up so the heat in the roof space increases.

This increase in heat becomes pressure in the roof space.

Reaching up and touching your ceiling space you will find the ceiling to be warm to hot.

Similar to underfloor heating but above your head in summer.

The radiant heat from the ceiling will heat up the home from the inside.

This is not when you want to heat in your home.

So how will the Insulation remedy this problem?

Insulation installed by Expert Insulation Installers will be installed correctly.

Ceiling insulation must be installed directly on the ceiling surface.

Fitting insulation over the beams is a waste of money.

Ceiling Insulation reduces heat flow by as much as 90%.

Improving temperature in the home by 4 to 8 degrees.

Isotherm Winter Benefits

Isotherm Winter Benefits

The roof space of the home is cold in winter.

Cold air sinks as we all know. Therefore the freezing roof space will make the home much colder.

Heating in the home in winter is almost wasted unless one is sitting next to the heat source.

A well-Insulated home will reduce the heat loss in the house substantially.

Insulation creates a barrier between the freezing roof and the warmer home.

Correctly insulated homes will reduce heat loss via the ceiling as much as 90%.

Improving the internal temperature by 4-8 degrees.

With heating, the entire house will warm up.

Close all windows and doors as well as blinds and curtains to prevent heat loss on cold rainy days.

Creating an insulation barrier with curtains between the cold windows and the warmer interior is beneficial in reducing heat loss.

Heat from the sun is free energy to warm up the home.


Isotherm Applications

This insulation is very popular as the insulation is pleasant to touch. In fact, because Isotherm is Dust Free, Allergy-Free and Itch Free it is ideal for the DIY installer as well. Installing Isotherm is a pleasure as there is no itch factor as the insulation is a polyester base product. Manufactured from PET plastic bottles this insulation is regarded as eco-friendly. 

Isotherm Thermal Insulation

Isotherm Thermal Insulation for Homes

Thermal insulation is one of the best updates for any home. In fact, the 145mm Isotherm Thermal Insulation is SANS compliant for the entire Western Cape, Johannesburg and Pretoria. Thermal Insulation is available in a number of thicknesses. So for the DIY homeowner, it is ideal as the insulation comes in two widths 750mm width as well as 1200mm width. The 750mm wide rolls are perfect for tiled roofs. 

Isotherm Loft Room Insulation

Isotherm Loft Room Insulation

This insulation is perfect for Loft Rooms. Therefore this insulation is our product of choice as Loft Room Insulation. The 30-year manufacturer guarantee means that the Loft Room will be cooler for many years. Roof Insulation specializes in Loft Room Insulation. All Loft Rooms must have insulation installed on top of the ceiling as well as the sloped section and the side walls. Insulated Loft Rooms are a please to spend time in as the temperature is far more consistent. This will make any Loft Room a pleasure to live in. In fact temperature of up to 12  degrees C. Ideally, the side walls will have the insulation wired at 300mm intervals.

Isotherm Dry Wall Insulation

Isotherm Drywall Insulation

This insulation is ideal for drywall applications. In fact, the high tensile strength of the insulation is a great benefit. Therefore the chance of insulation collapsing is nil. Installing Isotherm Drywall insulation will reduce noise pollution between rooms. Another benefit is that this insulation soft to touch and is itch free. Therefore ideal for contractors as well as DIY experts.

Eco-friendly Isotherm

Eco-friendly Isotherm

Manufactured from pollution that will affect the earth and ocean for many years. In fact, plastic bottles (PET) will be pollution on our planet for up to 400 years. Therefore this insulation is regarded as one of the most Eco-friendly insulation products on the market. Soft, smooth feel. There is no itch and no fuss with Polyester Insulation. Many insulation products claim to be eco-friendly but, they have a host of chemicals in them. As a result Isotherm itself is recyclable.

What is Isotherm

What is Isotherm Insulation?

Isotherm insulation is a polyester type insulation. This product has excellent Thermal Insulation properties. In fact, as ceiling insulation, this product is one of the most highly rated insulated products. Manufactured to the highest standards and is SABS approved. Furthermore, the 145mm thick Isotherm is SANS compliant. As we know insulation is not usually user-friendly. Most insulation types have a host of chemicals and side effects. Therefore this insulation product is perfect for any home. In fact, your two-year-old can play with this insulation. This is one of the best insulation products on the market. This insulation will outlast the lifespan of most homes.

dust free Isotherm

Dust Free and Allergy Free Insulation

This insulation is a polyester type insulation. As a matter of fact, because of this, the product is not only dust free. In fact, it is Allergy free as well. Therefore there are no loose fibres. As a consequence, this insulation is also itch free. 

sound proofing benefits of isotherm

Isotherm Sound Proofing Insulation

In fact, this insulation is not the best for soundproofing unless two layers are fitted. However, there is most certainly a reduction in the noise. The insulation does not have a very good NRC Noise Reduction Coefficient. This insulation will make a difference in sound reduction. However, the Aerolite 135mm has the best NRC 1.1. Therefore this would then be our insulation of choice for soundproofing.  


30 year manufacturer guaranteeIsotherm 30-year Guarantee

Isotherm has a 30-year manufacturer guarantee. Therefore homeowners will have years of energy saving and comfort. Installed this insulation correctly will outlast the lifespan of most homes. Manufactured from what is known as one of the worst forms of pollution. That would affect our planet for as much as 400 years. Arguably the insulation will have a very long lifespan.

Get the best out of your isotherm insulationGet The Best Out Of Your Isotherm

The Isotherm Ceiling Insulation is the best investment for any homeowner. Let's look at some ways to help you get the absolute best out of your insulation. Not all homes have double glazed windows; this would be first prize. Let us look at homes that have air leaks; now this is a problem in winter. It is one thing having your Insulation installed but, you don't want cold air coming into the home.

Try and seal all windows and doors from air leakage. Wooden windows must be revamped or us rubber seal to stop the cold air entering the home. Also, door sealers can be fitted to the base of the doors to prevent cold wind blowing into the house. On freezing days if you have very heavy curtains, these are great as they will act as insulation against cold windows. Keep all window curtains drawn to prevent the warm from being lost to the cold windows.

Of course in summer if you are out close curtains in rooms where the sun will shine through to get the best results. In Summer the same as above applies however in this application we are preventing hot air entering the home. On arrival at home curtains and windows can be opened and this will result in a stable, relaxed environment in the house. All unwanted heat will follow the path of least resistance and flow out of the home.

isotherm does not burn

Isotherm Fire Rating

In fact, this insulation will not burn as this roof insulation has a bb/1/2 fire rating.

The means that the insulation will not sustain a flame.

In fact, even if you put a blow torch to Isotherm, it will still not be able to sustain a flame.

In fact in most cases even if an electrical wire is burning in the roof space.

Insulation will help reduce the risk of fire making the home safer.

reduce condensation with isotherm

Reduce Condensation With Thermal Insulation

In fact, condensation is a big problem in many of the older homes in the Cape Town area. It is a known fact that the Cape area with its strong winds and driving rain is freezing in winter. As a result, this is, unfortunately, where condensation starts to play a significant role.

How can we reduce the impact of condensation in our homes? Firstly start with a thick layer of this Thermal Insulation laid flat on the ceiling. As a result, this will reduce the cold air entering the home. Secondly, seal all windows from allowing cold air into the house. Thirdly install heavy curtains. Making sure make sure they closed at night. This will reduce the cold air entering the home.

Making the home warmer in winter and giving the family a much healthier home to live in.

water and isotherm

What if Isotherm Gets Wet?

No big deal if Isotherm gets wet. Manufactured from PET plastic bottles. If the insulation gets wet, it will not get mouldy and need to be replaced in most cases. Unlike paper insulation (Cellulose) this insulation does not absorb and hold water. The first warm day the ceiling insulation will dry naturally. If not remove and put in the sun for a few days and refit.

Will the insulation lose its insulation properties after being wet? However, if the insulation is drenched in water and doesn't dry and retain its thickness, it could be considered to replace that piece. However, as soon as the insulation is dry, all will be back to normal. If you find that the piece that was wet. Remove the damp piece of insulation and lay it down to dry in a warm place. 

Isotherm does not sustain vermin

Does Not Support Vermin

In all my years of installing Roof insulation, we have never seen the effects of rats nesting in this insulation. In fact, the high tensile strength and also a high density could be the reason. This insulation is almost impossible to tear along the length. Most homes were we remove insulation because of rat infestation it is usually found in the finely shredded paper insulation products like cellulose fibre.