Aerolite Insulation is a high-performance glass wool ceiling insulation designed to improve thermal comfort, energy efficiency, and acoustic control in South African homes and buildings. Manufactured for demanding local conditions, Aerolite Insulation reduces heat gain during hot summers and limits heat loss during cold winter months.
Available in 135 mm, 100 mm, and 50 mm thickness options, Aerolite Insulation allows homeowners, contractors, and developers to select the correct performance level based on climate zone, roof structure, and budget. With proven R-values, excellent noise absorption, and a non-combustible fire rating, Aerolite Insulation remains one of the most trusted ceiling insulation solutions in South Africa.
Key Benefits of Aerolite Insulation
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Improves indoor temperature stability year-round
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Reduces heating and cooling electricity costs
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High acoustic absorption for noise reduction
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Non-combustible and fire safe
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Lightweight and easy to install
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Suitable for new builds and retrofit projects
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Available in multiple thicknesses for different performance needs
Aerolite Insulation Thickness Options (Variable Selection)
This product page covers all Aerolite Insulation thickness options. Select the required thickness above to view pricing and availability.
Aerolite Insulation Specifications
135 mm Aerolite Insulation
| Specification | Details |
|---|---|
| Thickness | 135 mm |
| Roll Size | 5 m × 1.2 m |
| Coverage | 6 m² per roll |
| Tested R-Value | 3.38 |
| Installed R-Value | 3.78 |
| Density | 11 kg/m³ |
| Acoustic Rating (NRC) | 1.1 |
| Fire Rating | Class A / A1 (Non-Combustible) |
| Application | High-performance ceiling insulation |
100 mm Aerolite Insulation
| Specification | Details |
|---|---|
| Thickness | 100 mm |
| Roll Size | 6 m × 1.2 m |
| Coverage | 7.2 m² per roll |
| Tested R-Value | 2.50 |
| Installed R-Value | 2.90 |
| Density | 11 kg/m³ |
| Acoustic Rating (NRC) | 0.9 |
| Fire Rating | Class A / A1 (Non-Combustible) |
| Application | General residential ceiling insulation |
50 mm Aerolite Insulation
| Specification | Details |
|---|---|
| Thickness | 50 mm |
| Roll Size | 10 m × 1.2 m |
| Coverage | 12 m² per roll |
| Tested R-Value | 1.28 |
| Installed R-Value | 1.68 |
| Density | 11 kg/m³ |
| Acoustic Rating (NRC) | 0.70 |
| Fire Rating | Class A / A1 (Non-Combustible) |
| Application | Budget or supplementary insulation |
Where Aerolite Insulation Works Best
Aerolite Insulation is primarily installed in ceiling and roof spaces, positioned between roof trusses above ceiling boards. It is suitable for both metal and tiled roofs, and performs effectively in single-storey and double-storey buildings.
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135 mm Aerolite Insulation is best suited for homes in extreme temperature regions, double-storey houses, and energy-efficient builds requiring maximum thermal resistance.
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100 mm Aerolite Insulation offers a strong balance between cost and performance and is widely used in standard residential applications.
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50 mm Aerolite Insulation is ideal where roof space is limited or where insulation is being added as a supplementary layer.
All thicknesses can be used in new constructions or retrofit installations.
Energy Efficiency & Cost Savings
Aerolite Insulation works by slowing down heat transfer through the ceiling — the largest source of heat gain and heat loss in most buildings. Thicker insulation provides greater resistance to heat flow, which reduces the need for heaters in winter and air-conditioners in summer.
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Homes with correctly installed Aerolite Insulation experience more stable indoor temperatures.
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Reduced reliance on heating and cooling systems leads to measurable electricity savings.
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Over time, energy savings contribute to offsetting the initial insulation investment while improving daily comfort.
Selecting the correct Aerolite Insulation thickness ensures optimal performance for your climate and building design.
Noise Reduction & Fire Safety
Aerolite Insulation offers excellent acoustic performance due to its fibrous glass wool structure. It absorbs airborne sound, helping to reduce noise from rain on metal roofs, traffic, and surrounding environments.
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Higher thicknesses provide improved noise absorption.
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Suitable for residential homes, offices, and multi-unit developments.
In terms of safety, Aerolite Insulation carries a Class A / A1 fire rating, meaning it is non-combustible and does not contribute to fire spread. This makes it suitable for residential and commercial ceiling installations where fire safety is a priority.
Installation Guidelines
Aerolite Insulation should be installed loosely between ceiling trusses without compression to maintain its full thermal and acoustic performance. Compression reduces effective R-value.
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Can be installed by professionals or experienced DIY installers
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Should not be tightly packed or forced into place
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Vapour barriers may be recommended in certain roof types
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Compatible with gypsum, fibre-cement, and XPS ceiling boards
Always follow recommended installation practices to achieve the stated performance values.
Frequently Asked Questions (FAQs)
Is Aerolite Insulation suitable for South African climate zones?
Yes. Aerolite Insulation is designed for South African conditions and is suitable for both hot summers and cold winters when the correct thickness is selected.
Which Aerolite thickness is best for the Western Cape?
135 mm Aerolite Insulation is recommended for colder winters and improved energy efficiency, while 100 mm is suitable for standard residential applications.
Does thicker Aerolite Insulation save more electricity?
Yes. Increased thickness improves thermal resistance, which reduces heat transfer and lowers heating and cooling energy usage.
Can Aerolite Insulation reduce noise?
Yes. Aerolite Insulation provides effective noise absorption, particularly against airborne sound and rain noise on metal roofs.
Is Aerolite Insulation fire safe?
Aerolite Insulation is non-combustible and carries a Class A / A1 fire rating.
Can Aerolite be installed over existing insulation?
In many cases, yes. Existing insulation must be dry and correctly positioned before adding additional layers.
Does Aerolite Insulation settle over time?
When correctly installed, Aerolite Insulation maintains its thickness and performance.
