To understand how attic insulation helps keep your home cool in the summer months you first have to be aware of the ways a poorly insulated attic can make your house hot.
Attic insulation to keep house cool.
However the utility of attic ventilation fans is actually quite a controversial topic.
But insulation is also there to keep you comfortable in summer.
When it s hot outside the stack effect operates in reverse.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
Powered attic ventilators are the worst way to try to keep your attic cool.
Affix rigid foam insulation to the attic side of the hatch or door.
In other words use temperature controlled or timer d attic fans to keep your attic from getting too ridiculously hot.
They ve been well discussed here and other places but briefly they re not cost effective don t deal with the problem where it starts are using convection to solve a radiant heat problem and can even be dangerous by backdrafting combustion appliances and.
In fact it s just as important for staying cool in the summer as it is in the winter and here s how.
Adding an attic fan can improve the airflow in your attic to keep it cool.
Instead of warm air entering your home rising to the top and escaping to a cooler environment the outdoor heat goes out of its way to enter your cool air conditioned house.
While textiles like flannel sheets and fleece blankets are fantastic for insulation cotton is a smarter move this time of year as it breathes easier and stays cooler.
Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.
Attic hatch or door.
Roofing materials often absorb the sun especially metal sheeting or asphalt shingles.
So in answer to that question attic insulation is very important to keeping your house cool during a heat spell.
Good insulation reduces fan effectiveness.
However most of the modern homes are designed to be energy efficient themselves and there is no point in installing the system then.
Not only does seasonally switching your bedding freshen up a room but it s also a great way to keep cool.
Pull down stair or ladder.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
This is the best way to keep your house cool in the summers while keeping it warm during the winters.
Installing an insulation system can drastically reduce energy consumption in your house.
Attack your hottest spots with low energy cooling.
This heat is then transferred through your wooden beams and into your attic.