But do it on warmer winter days like when it s a balmy.
Open attic windows winter.
We have a large full attic.
2 are ornamental and the other 4 are regular functioning windows.
6 windows in all.
Unless your roofing system has insulation on the roofing deck and is designed without ventilation your furnace should not be heating your attic.
When the attic becomes part of the home to be heated and cooled open wall gable vents and roof vents are no longer feasible but the underside of the roof the sheathing and rafters can still get.
Through the gable siding diffusing through the roofing etc.
I have my windows opened and my sister in law came over.
It will always help dry out any moisture that does get in e g.
Believe it or not the cold temperatures outside combined with the warm air down below mean that there can be an excessive amount of moisture building up in your attic during the cold winter months.
During the summer they would open the windows to let the heat out and have cross ventilation.
My home has a whole house fan installed in the upstairs hallway ceiling when its cool at night that thing can suck the heat out of the house in record time.
During the summer and most of fall we keep 2 windows open for cross ventilation.
Since you are reasonably airsealed you don t need attic ventilation in the winter but a little is always good insurance.
It even rained and the sill got wet but not the floor.
She said leaving the windows will cause.
If you were to shut your vents trying to keep the heat in you could also be trapping that moisture.
We do get bugs flies in the summer ladybugs in the fall.
The windows have screens.
If you want to bring in fresh air over the winter but you can t invest in an hrv don t be afraid to open your windows a bit during the day.
Poor insulation is usually the culprit although if you enter the attic on sunny winter day your attic space can be warmed by the sun more than your furnace.
If you leave the attic windows open be sure and staple some screens over them maybe even hardware cloth would be better to keep the critters out bats and raccoons etc will invade your space and give you fits.
And if necessary i d keep them open just a crack until you can get some roof vents in place or gable vents.
It gets stifling and stale up there if we don t.
One on each end of the house.
And reduce the chances of ice dams as you said.
My parents had two small windows in their attic.
Remember that attic ventilation serves two purposes.
After leaving the attic window open overnight it was amazing how cool it got in there.