Sounds like a huge job
@WLLady how is your back holding up?
I was thinking of California yesterday, how we always welcome a nice sunny day with pleasure, but after spending some time in California, I remember looking at the sunny sky and thinking "relentless", which just proves the too much of a good thing may just be too much.
Second heat wave is starting to be too much
Since we don't have an air-conditioning we practice defensive house cooling (i.e.. large deciduous trees, blinds on the windows etc)
but the sunroom has a lovely view which I hate to block, so the film seemed to be a possible solution, it makes the windows a bit darker, sort of like very light sunglasses, just a green/blue tinge, if this works I may get another roll and plaster it on every south facing window :)