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Based on Technical Report No. 65, Expansion Joints in Buildings: issued by Building Research Advisory Board, Division of Engineering, National Research Council, USA. As per Figure 1 in the above referenced publication, the maximum allowable building length without use of expansion joints, for design temperature change greater than 70º F (39º C) will be 0.85x350=297.5 ft = 90m. In view of above, we would like to avoid expansion joints in any building which is less than 90m in length, except where a seismic joint is required due to configuration of the building (plan irregularities, re‐entrant corners, etc.) or due to different lateral force‐resisting systems for the two parts of the building.