3. Isolation
3.1 Commercial premises in the first four categories
The dwelling constitutes a third party at common risk; it must have :
2 h or 3 h firewalls (CO 7) depending on the type(s) of establishment ;
1 h to 3 h fire-stop floors (CO 9) depending on the type(s) of facility.
Paragraph 11
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Isolation
Construction
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