Has anyone ever used the aged or 3 - year solar reflectance value instead of the the initial reflectance? The shingle we are considering for a job does not meet the SRI value of 29 initially, but does after 3 years. Other shingles start with an SRI of 29 and get lower after three years. It seems it would make more sense to use the three-year value than the initial value, but the question still stands whether a shingle has to be compliant on day one and at day 1096. Any thoughts?