You hire an HVAC Contractor and tell them that you wish to be absolutely certain that your building maintains optimal interior conditions (approximately 75-78 oF; R.H. 40-45%) on the hottest day of the year. The contractor responds that buildings with programs such as yours require about 1 ton of cooling for each 400 sf of floor space, but just to be safe he will oversize the system he installs by 15%. Is this a sound proposal? Note: Yes = True; No = False