We had our home recently renovated, and after a large rain, during AZ's last monsoon season, we found a large puddle on water in the house back our new sliding glass door. After determining we didn't leave anything open we figured out that the issue was due to water coming from the track. After even more research, we found that the track our contractor install has no water rating.
Our contractor is saying that we approved the design of the door and they showed us that they were using the flush sill. We were never told that the because they selected the flush sill that we may have water leakage or shared the image below.
My question is how is a contractor supposed to calculate the "PSF" rating for a sliding door? Is there some sort of guide?