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Section 2 -
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2.2.7
For timber doors and frames, fixing screws should be not less than size No.8 (3.8 mm) and not less than 30 mm in length. For steel
doors the dimensions may vary according to the method of fixing in accordance with their individual test report.
2.2.8
Hinges for use on final exit escape doors should have a corrosion resistance of not less than Grade 3 of BS EN 1670.
2.2.9
CE Marked hinges should be marked according to clause ZA.3 of
BS EN 1935.
2.3 Commentary
2.3.1 Melting Point
The Building Regulations 1991 Approved Document B, Appendix B 2000/2002 Edition states:
"Unless shown to be satisfactory when tested as part of a fire door assembly, the essential components of any hinge on which a fire
door is hung should be made entirely from material having a melting point of at least 800°C."
2.3.2 Sizes
Hinges are available in a range of sizes, which relate to the mass
and size of the door. These are set out in Table 1 of BS EN 1935, which is shown below:
For timber doors and frames, fixing screws should be not less than size No.8 (3.8 mm) and not less than 30 mm in length. For steel
doors the dimensions may vary according to the method of fixing in accordance with their individual test report.
2.2.8
Hinges for use on final exit escape doors should have a corrosion resistance of not less than Grade 3 of BS EN 1670.
2.2.9
CE Marked hinges should be marked according to clause ZA.3 of
BS EN 1935.
2.3 Commentary
2.3.1 Melting Point
The Building Regulations 1991 Approved Document B, Appendix B 2000/2002 Edition states:
"Unless shown to be satisfactory when tested as part of a fire door assembly, the essential components of any hinge on which a fire
door is hung should be made entirely from material having a melting point of at least 800°C."
2.3.2 Sizes
Hinges are available in a range of sizes, which relate to the mass
and size of the door. These are set out in Table 1 of BS EN 1935, which is shown below:
Table 1: BS EN 1935 Classification Summary. View full size
Clearly, an important factor is the size of the hinge with respect to the door mass.
Clearly, an important factor is the size of the hinge with respect to the door mass.
