Description
Isotherm 135mm Thermal Insulation is a high-performance polyester insulation designed for maximum energy efficiency and indoor comfort. Manufactured from 100% recycled PET fibres, it is soft, safe, non-itch and easy to install. The 135mm thickness delivers top-tier thermal performance, reduces electricity costs, and improves both temperature and sound regulation.
Key Features
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135mm thick premium insulation
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6m² coverage per roll
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Excellent thermal efficiency (high R-value)
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Made from 100% recycled PET bottles
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Non-itch, non-allergenic, safe to handle
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Moisture-resistant & mould-resistant
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Fire-rated (B/B1/2 – low flame spread)
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Lightweight, durable and long-lasting
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Ideal for ceilings and energy-efficient builds
Applications
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Ceiling insulation
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Internal acoustic insulation
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Between-floor insulation
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Residential and commercial construction
Mini Data Sheet
| Specification | Value |
|---|---|
| Thickness | 135mm |
| Roll Size | 1.2m x 5m |
| Coverage | 6m² per roll |
| Material | Thermally bonded polyester |
| Density | ±10–12 kg/m³ (approx.) |
| R-Value | ±3.38 |
| Moisture Absorption | ≤2% |
| Fire Rating | B/B1/2 (Low flame spread) |
| Weight | ±6–7kg per roll |
| Composition | 100% recycled PET fibre |
Benefits
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Superior thermal and acoustic performance
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Reduces heating and cooling costs
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Eco-friendly and fully recyclable
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Soft, safe and easy to install
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Long-lasting and maintains loft
Why Choose the 135mm x 1.2m x 5m Roll?
Perfect for smaller areas requiring top-grade insulation, contractors needing compact rolls, or homes upgrading to SANS-compliant ceiling insulation.
