John61 wrote:
My new house has a few big windows facing southwest, taking much sun heat in
the afternoon. Have to keep the heat pump working till after midnight to
cool down.

I went to HomeDepot and hoped could find some kind of window film that can
block sun heat - something like we put on minivan window glass. But there
are only some small packs of decorative films available there. Need some
advice on this.

Thanks.


The main issue with those films is they cause damage to the glazing
because of uneven heating. It is likely your minivan doesn't have double
pane windows.