Hot sunshine = hot attic which = hot houses.
My attic is starting to heat up which means your home is going to be much hotter than normal unless you ventilate all the trapped hot air with a whole house fan.
Whole house ventilation fans work by pulling all the cool air from outside in the evenings through a fan mounted in your ceiling via the attic space which right now is about 120 degrees! My Temecula home has a thermometer in the attic as you can see and it’s 120 in the attic and only 80 in the upstairs bedrooms. This 120 attic is like a very large oven that’s going to continue to heat my home all night if it’s stays closed up!
Whole home and attic ventilation can be achieved with a properly sized whole house fan easily!