Fire Protection
Isovers Aerolite® Soft Touch is the only locally manufactured glasswool insulation to achieve the A1, -S1, D0 fire rating under the new SANS 53501 protocol. This certification ensures non-combustibility, no smoke emission, and no flaming droplets, making it one of the safest insulation options for homes.
Discover why Isover Aerolite® Soft Touch insulation is ideal for ceiling projects in Project V renovation by Flipping Johannesburg. Locally manufactured, it offers thermal and acoustic benefits and is non-combustible, ensuring safety. Watch as Steve tests its fire resistance against polyester, highlighting the importance of choosing the right insulation for safety.
The A1 rating confirms non combustibility, the S1 rating guarantees no smoke emission, and the D0 rating ensures no flaming droplets or particles during a fire, making it one of the safest insulation materials for residential environments.
Fire ratings explained
To comply with building regulations, materials must resist fire spread and maintain structural integrity. Key measures include:
- Reaction to fire – retardancy: Measures a material’s ability to resist fire spread.
- Reaction to fire and structural integrity: Assesses how a material contributes to fire development.
Classification
Products are classified into seven Reaction to Fire classes (A1 to F) and further divided by smoke intensity (s1 to s3) and burning droplets (d0 to d2).
Example classification
- B: Very limited contribution to fire
- s1: Minimal smoke emissions
- d0: No burning droplets
European Standard EN-13501-1
| DEFINITION | CONSTRUCTION PRODUCTS |
| Non-combustible materials: No contribution to fire | A1 |
| Limited combustibility | A2 – s1 d0 |
| Combustible materials: Limited contribution to fire | B – s1 d0 |
| Combustible materials: medium contribution to fire | D – s1 d0 |
| Combustible materials: High contribution to fire | E – d2 |
| Combustible materials: Easily flammable | F |
As the only locally manufactured glasswool product to achieve this top-level fire rating, Isover’s Aerolite®?Soft Touch stands as the ideal choice for homeowners looking to enhance both the safety and comfort of their homes.
For more information contact us on:
Tel:0860 476 837
Email:[email protected]
Website:https://www.isover.co.za/contact-us

