"The number of infiltration degree-days is equal to the sum of the cooling degree-days plus the heating degree-days for a particular location." change to "The number of infiltration degree-days is equal to the sum of the cooling degree-days plus the heating degree-days for a particular location. These exemptions are based on ASHRAE Std. 62.2-2004, which references ASHRAE Std. 119-1988 (RA 2004). Following this standard, LEED for Homes uses a base of 65