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roof insulation types

Insulation is an essential energy-saving feature of any home. There are many examples of where to insulate, bearing in mind that every home is different. Large houses, small apartments, households in the Cape and homes on the Highveld, North facing, South Facing, flat roofs, thatch roofs the list is endless. In this post, we cover a few roof insulation types.

Today every home must be appropriately insulated; new building regulations insist on insulation, and that insistence should apply to all households. From the foundation or even the basement up to the roof, installing the correct insulation is vital.

The moisture levels, air leakage, and the amount of sunlight a property get needs consideration. There is nothing random about insulation, and taking chances can eliminate the benefits of insulation.

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Roof Insulation Types For Your Home

Where to insulate your home and how to insulate are very important. When deciding to insulate your home, there are several factors to take into consideration.

How much energy do you want to save is the first question you need to answer. There are many Roof Insulation types; however, not all roof insulation types of insulation are equal.

The roof insulation industry in South Africa has changed with the new SANS building legislation. As all new homes built as of January 2013 must be SANS compliant installing roof insulation.

Install roof insulation, achieving the correct R-value 3.70 for the best result.

Roof Insulation Types in South Africa

The attic, the loft or the limited space between a flat roof and the ceiling are some of the most important places to insulate. The roof space of many homes in South Africa is the place where most energy is lost. Changing your loft from an energy-wasting attic to an energy-saving loft is not tricky. Listed below are a few roof insulation types that will improve your indoor temperature in summer and winter.

There are two types of insulation for use in lofts and roof spaces: Batt blanket or Matt insulation and loose fill insulation.

  • Think Pink Aerolite Insulation with new TEL Fiberizing technology. 5 STAR
  • Knauf Ecose Insulation with Ecose Technology. 5 STAR
  • Polyester insulation products of which the best is the Isotherm Insulation. 4 STAR
  • Cellulose paper insulation. 3 STAR

Isotherm Insulation The Most Popular of The Roof Insulation Types

The Isotherm is very popular as the insulation is dust free and allergy free. As a result, Isotherm is one of the most popular roof insulation types.

Matt or Batt insulation such as ISOTHERM does not settle quickly. ISOTHERM is a 100% green insulation product that is easy to and quick to install in the roof or attic space. Roof Insulation products like Isotherm are the most eco-friendly insulation products on the market.

The 145mm Isotherm insulation is SANS compliant and is the best insulation for your roof. When deciding on the thickness of Roof Insulation to install always read the Isotherm technical specifications.

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Isotherm Insulation Benefits

  • Lifespan 30 years
  • Dust free and allergy free ideal for homeowners with allergies.
  • Improve indoor temperature 4-8 degrees.
  • Noise reduction NIL
  • Installed R-value 3.76 with the 145mm Isotherm Insulation.

Think Pink Aerolite a Glasswool Roof Insulation Types

The Aerolite insulation is very popular because it is a roll form of insulation, so the thickness is consistent as well.  The 135mm Aerolite is the most popular insulation in the Aerolite range and is also SANS compliant.
Additionally, the new Aerolite produced with the TEL fiberizing technology. Aerolite is now safer than many products in the kitchen like certain instant coffees and even some pickled vegetables. Consequently, Aerolite is one of two roof insulation products specified for hospitals, Schools, and high people traffic areas.

The Aerolite Roof Insulation comes in several different roof insulation sizes. Think Pink Aerolite is another very effective roll form insulation. Aerolite insulation is one of the oldest forms of roof insulation. The Aerolite insulation is also beneficial because it is a roll form insulation, so the thickness is consistent as well.  The 135mm Aerolite is the most popular insulation in the Aerolite range and is also SANS compliant.

Before installing any form of roof insulation, checking the insulated space for air leakage, cracks, gaps, and other issues that could hinder the insulation process is essential. R-value measures all Insulation products. Covering your roof space with the right product with the highest R-value is used is necessary.

Aerolite Insulation Benefits

  • Lifespan 30 to 50 years.
  • Safe for Hospitals and schools.
  • Improves indoor temperature 4 – 8 degrees.
  • Reduce Noise pollution  NRC 1.1
  • Installed R-value 3.78 with the 135mm Aerolite. Get the Aerolite price here

Knauf Ecose Insulation

Imported from Germany, the Knauf Ecose Insulation is one of the highest grade roof insulation types. Ecose is Earthwool insulation that is brown. Like Aerolite Insulation Ecose is also specified for hospitals, Schools and shopping centers.

Mainly the Ecose is produced with Ecose Technology a natural binder.

Benefits of Ecose insulation

  • Long lifespan 25 to 50 years.
  • Safe for hospitals and schools.
  • Improves indoor temperature 4 – 8 degrees.
  • Reduce noise pollution with an NRC 1.10
  • Installed R-value 3.78 with the 135mm Ecose Insulation. Get the Ecose Price here.

Loose Fill Insulation

Loose fill insulation produced from recycled newspaper that has finely shredded to a fine paper like dust. Of course, the paper will be highly flammable in the roof space, and this could become a fire hazard.

For this reason, a chemical compound of fire retardants rat repellants, etc. accounting for up to 25% added to the paper. The downfall of this type of insulation is there is no way of knowing precisely what thickness insulation is installed.

With the blown method, there is no exact science when it comes to thickness or density as the product is blown in. Loose fill insulation has not been a very successful roof insulation type. One reason is the fine paper dust can move with the wind leaving you exposed in terms of insulation.

The other problem is rain or water damage as these insulation types tend to absorb water. Until the inevitable ceiling collapse. If you have this in your roof space and need it removed because of allergies or water damage give us a call as we have a large roof vacuum machine that removes this paper.  

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Loose fill insulation is not regarded as eco-friendly the product can’t be recycled and contains a substantial amount of chemicals.

Cellulose Stats

  • Short lifespan
  • In the even of a roof leak or broken water pipe, paper insulation will cause damage. As a result of water absorption.
  • Improves indoor temperature 3 – 8 degrees as long as the paper has not blown or shifted in the roof space.

Geyser and Pipe Insulation

Insulating around water pipes and installing a geyser blanket are both vital areas to wrap that will maximize the energy saving in your home. Hot water cylinders are energy intensive, and a geyser blanket will improve its efficiency. Hot water pipes lose heat when not lagged, and this again saves energy for a little extra cost. Wrap your Geyser with 145mm ISOTHERM insulation for best effect. Do not use commercially bought geyser blanket as they are useless

Hot water pipes lose heat when not lagged, and this again saves energy for a little extra cost. Wrap your Geyser with 145mm ISOTHERM insulation for best effect. Do not use commercially bought geyser blanket as they are useless

If your home has central air-conditioning, do not forget to insulate the ducts. Installing insulation reduces the dependency on air conditioning, but when air conditioning is used, insulating the ducts increases its efficiency.

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Open Ceilings or Cathedral Ceilings

Cathedral ceilings are open ceilings that extend above wall height toward the apex of the roof. Often Cathedral is built to expose the rafters and create space in a room or home. These ceilings can be challenging to insulate without disturbing the aesthetics of the room. Adequate space between a home’s ceiling and the roof deck must be provided to ensure optimal insulation and ventilation.

These ceilings can be challenging to insulate without disturbing the aesthetics of the room. Adequate space between a home’s ceiling and the roof deck must be provided to ensure optimal insulation and ventilation.

As with all insulation, the insulated area should be sealed, and any cracks or areas where warm air can escape addressed. Properly seal the roof space to avoid condensation or moisture build up.

Cathedral ceilings are challenging examples of where to insulate, and the solution is straightforward. Foil backed is the ideal insulation material to use in this situation. Rigid foam insulation is also be used that must be covered with a fire retardant material. It is recommended that insulation is professionally installed in homes with open ceilings to ensure optimal results.

Rigid foam insulation can also be used that must be covered with fire-retardant material. It is recommended that insulation is professionally installed in homes with open ceilings to ensure optimal results.

Insulating your exterior walls

Another example of where to insulate is the walls of a home. Walls may seem well insulated, but the vast majority are far less energy efficient as thought. Fitting insulation between walls of a house is an area the home that many South Africans would not consider as an example of where to insulate.

The walls are a relatively straightforward place to insulate a home or any other building. The walls are a relatively straightforward place to insulate a house or any other building.

When building or planning to a new property wall, insulation should be considered from the outset. Building insulation into a home from the construction phase is vastly more effective than insulating at a later stage.

The CAVITY BATT is the most effective insulation for cavity walls. Wall cavities can be insulated with a variety of insulation materials. Blowing insulation into the cavity is a quick and effective insulation method. Rigid board insulation cut to size makes insulation affordable and effective. Another option is to spray insulating foam into the cavity.

Insulating the walls is an example of where to insulate that is an overlooked area but an area that can bring tremendous energy and cost savings to the home.

In a new home, it is easy to install wall insulation and areas that out of reach once constructed can be insulated. A new home built with energy saving in mind makes the entire house an example of where to insulate from the ground up.

From the ground up

An example of where to insulate that many won’t even believe is the foundation of a home. Insulating the foundation is not practical for existing homes, but when building a new property, it is a valuable addition to any property. Insulating foundation walls and a basement, if a basement is being constructed, introduces considerable energy savings to the new home.

When building a home with a basement, there are several advantages to foundation insulation. The benefits and advantages include:

  • Thermal bridging is reduced, and heat loss through the foundation is minimized
  • The damp course is protected when backfilling
  • Reduced moisture intrusion

Energy Efficient Homes use Less Energy

Energy efficient homes, even with the use of wood-burning fireplaces or other forms of heating, will absorb less energy. The same applies will cooling and the running of energy efficient air conditioners in summer. The need for both hot and cold energy will be reduced substantially. Many energy efficient products for heating and cooling are on the market now.

Many energy efficient products for heating and cooling are on the market now. Energy saving stoves, as well as many other energy-efficient appliances, are being produced worldwide to save energy.

 

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