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Attic Frames - Bracing
Permanent bracing is required in all roofs for four reasons:
 
a. to maintain rafter stability
b. to prevent dominoeing
c. to form diaphragms to transmit wind loads to shear walls
d. to maintain the stability of internal compression members
By far the most serious matter which arises in roof surgeries is rafter (roof) instability, arising from lack of suitable bracing.
 
Permanent bracing is the responsibility of the Building Designer. The advice and recommendations given here are given in the interests of good building practice and are not to imply responsibility accepted by MiTek. They should be considered as the necessary minimum.