Research and analysis
Table 5: descriptions of large-scale system tests undertaken by the BRE and the number of buildings with similar cladding systems
Updated 6 December 2018
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| Large-scale system test | ACM cladding category tested | Insulation type tested | Result | Private Buildings | Local authority | Housing association | Publicly-Owned Buildings | Total Buildings |
|---|---|---|---|---|---|---|---|---|
| 1 | Category 3 | Foam Insulation | Fail | 46 | 9 | 30 | 2 | 87 |
| 2 | Category 3 | Mineral Wool | Fail | 22 | 33 | 49 | 0 | 104 |
| 3 | Category 2 | PIR foam | Fail | 4 | 1 | 3 | 0 | 8 |
| 4 | Category 2 | Mineral Wool | Pass | 5 | 1 | 5 | 1 | 12 |
| 5 | Category 1 | Foam Insulation | Pass | 0 | 0 | 0 | 0 | 0 |
| 6 | Category 1 | Mineral Wool | Pass | 0 | 0 | 0 | 0 | 0 |
| 7 | Category 2 | Phenolic Foam | Fail | 9 | 0 | 14 | 0 | 23 |
| Na | Category 3 | Not in a systems test | Inferred fail | 54 | 2 | 12 | 5 | 73 |
| Na | Category 2 | Not in a systems test | Inferred fail | 18 | 0 | 0 | 2 | 20 |
| Na | Category 1 | Not in a systems test | Inferred pass | 0 | 0 | 0 | 0 | 0 |
| Subtotal: Total number of buildings failed BRE test | Not set | Not set | Not set | 153 | 45 | 108 | 9 | 315 |
| Confirmed by local authorities as having similar ACM cladding systems to those which have failed large-scale system tests | Not set | Not set | Not set | 119 | 1 | 6 | 0 | 126 |
| Total number of buildings with unsafe ACM cladding which are unlikely to meet current building regulation | Not set | Not set | Not set | 272 | 46 | 114 | 9 | 441 |
| Subtotal: Total number of buildings passed BRE test | Not set | Not set | Not set | 5 | 1 | 5 | 1 | 12 |
| Total number of buildings with confirmed ACM | Not set | Not set | Not set | 277 | 47 | 119 | 10 | 453 |