They can easily be 120f.
The attic door is very hot.
When it s hot outdoors it s hotter in your attic.
Heat moves from hot places to cooler places.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
Within the attic insulation is a must.
A thick insulation between 14 to 18 inches will help reduce heat from entering your home.
Lacking these i did the following.
Not the overabundance but the lack of insulation in the attic.
Be sure that the access door is well fitted and doesn t let air escape around the edges.
The garage ceiling has a door to the attic.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.
Set the garage door so it closes leaving about 1 foot gap at bottom also lets cats come and go as they wish.
During the hot months many people leave their garage doors open in the day or there is even a screen door type covering for a garage.
Attics are very hot during the summer and cold in winter.
To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor.
If not you may want to consider adding blown in insulation.
And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature.
Imagine how hot your house would be if it was 120 degrees outside.
The heat from the garage will absolutely contribute to high temperatures in the attic space above as well as the finished rooms.
A hot attic is bad for several reasons.
We ve all been in attics during the summer it s miserable.
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.
Excessive heat deteriorates items.
The attic is a huge determinant in keeping your entire home cool so the first place to start cooling your home should be the attic.
Another reason your attic is so hot is because of insulation.
Hopefully the ceiling cavity between the garage and the finished spaces was insulted.
Central heating ac systems and ductwork are often in the attic.
Unless your roofing system has insulation on the roofing deck and is designed without ventilation your furnace should not be heating your attic.