When two adjacent buildings with the same height of Grade 1 and 2 fire resistance are fire walls on either side of the adjacent building and the fire resistance rating of the roof is not less than 1.00h.
The fire separation distance can be reduced by 25% as required
The two adjacent outer walls of the two C, D, and E space frame workshops are non-combustible walls. When there is no exposed combustible eaves, the sum of the areas of doors, windows and openings on each outer wall shall not be greater than 5% of the outer wall area, and the doors, windows and openings are not directly opposite to each other.
The fire separation distance between Class A and B industrial workshops shall not be less than 6m; the fire separation distance between Class C, D and E workshops shall not be less than 4m
For two factory buildings with first and second fire resistance grades, when the adjacent lower outer wall is a fire wall and the roof of the lower factory building has no skylight, the fire resistance rating of the roof shall not be less than 1.00h;
For two factory buildings with fire resistance grades 1 and 2, the openings such as doors and windows on the adjacent higher outer wall shall be provided with Grade A fire doors, windows or fire separation water curtains, or according to Article 6.5.3 of the Construction Regulations The provisions of the article set fire shutters.
