They need to be open in the summer.
Attic windows open or closed in summer.
The windows have screens.
Small price to pay for being able to use the attic.
It allows air movement and will naturally exhaust the hot attic air.
Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient.
When night falls if the air outside is cooler than.
If your parents are unable to close the windows when a storm approaches the fan is a good idea.
During the summer and most of fall we keep 2 windows open for cross ventilation.
And the extra heat is not just a summer concern come winter hot attic air can melt snow on the roof during the day only to refreeze when temperatures drop overnight creating ice dams that lead.
More specifically keep the windows closed.
Its best if you can arrange a ventilation fan to the attic space or open the window vents if you have in attic.
Leaving the windows open is a good idea as long as you are home.
We do get bugs flies in the summer ladybugs in the fall.
My only suggestion is to have 2 awnings made to fit over and.
Have you ever lived inside a closed shade closed like a room.
Although air should circulate year round through the attic your house will probably be more comfortable if you cover the foundation vents in the winter.
To achieve it open the windows on both the upper and lower floors and as warm air exits the upper level cooler air will come in at ground level where you might consider sleeping.
Open the windows in the evening and at night.
Generally if your house is decently insulated keep the windows and blinds closed when the sun is shining.
Summer attic air temperatures with old terra cotta colored asphalt shingles peaked at 140 to 145 at 18 above the blown in fiberglass insulation layer at the attic floor.