Research and analysis
Table 5: descriptions of large-scale system tests undertaken by the BRE and the number of buildings with similar cladding systems – 31 January 2019
Updated 7 February 2019
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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 | 43 | 9 | 29 | 2 | 83 |
| 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 | 53 | 2 | 12 | 5 | 72 |
| 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 | 149 | 45 | 107 | 9 | 310 |
| 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 | 117 | 1 | 6 | 0 | 124 |
| Total number of buildings with unsafe ACM cladding which are unlikely to meet current building regulation | Not set | Not set | Not set | 266 | 46 | 113 | 9 | 434 |
| 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 | 271 | 47 | 118 | 10 | 446 |