Table 5.1A: Reaction to fire performance of external surfaces of walls

Table 5.1A Reaction to fire performance of external surfaces of walls Building Type | Building height | Less than 1 m from the relevant boundary | 1 m or more from the relevant boundary 'Relevant buildings' as defined in regulation 23(4) | Class A2-s1, d0(1) or better | Class A2-s1, d0(1) or better Assembly and recreation | More than 18 m | Class B-s3, d2(2) or better | From ground level to 18 m: class C-s3, d2(3) or better. From 18 m in height and above: class B-s3, d2(2) or better Assembly and recreation | 18 m or less | Class B-s3, d2(2) or better | Up to 10 m above ground level: class C-s3, d2(3) or better. Up to 10 m above a roof or any part of the building to which the public have access: class C-s3, d2(3) or better(4). From 10 m in height and above: Class E-d2 or better Any other building | More than 18 m | Class B-s3, d2(2) or better | From ground level to 18 m: class C-s3, d2(3) or better. From 18 m in height and above: class B-s3, d2(2) or better Any other building | 18 m or less | Class B-s3, d2(2) or better | Class E-d2 or better