Polystryrene
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Maintenance and Cleaning
| Types | Maintenance / Cleaning | Cleaning Frequency |
| Extruded polystyrene to BS 3837 Part 2. Designed for proposed use |
Annual inspection for insulation defect |
None |
| Expanded polystyrene to BS 3837 Part 1. Designed for proposed use | ||
| Polystyrene not to BS 5803 Part 1 and/ or not designed for proposed use |