Urethane Foam
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Maintenance and Cleaning
| Types | Maintenance / Cleaning | Cleaning Frequency |
| Closed cell rigid urethane foam boards as preformed insulation boards for roofing system to ASTM E936: 1998 or to BS 4841: Part 3, faced on both sides with bitumen coated glass tissue or glass/ polyethylene/ glass facing | Inspection:
Annual inspection for insulation defect.
|
None |
| Closed cell rigid urethane boards not to ASTM E 936: 1998 or BS 4841: part 3 or not designed for proposed use |
