Should Attics Be Cold?

What temperature should an attic be? The ideal temperature in your attic should be no less than 60 degrees Fahrenheit in the winter and no more than 10-20 degrees hotter than the outside temperature in summer, with a maximum of about 130 degrees Fahrenheit.

Why is the attic always cold?

Why is this a problem? During the winter, most attics are ventilated, so they get cold. And the roof deck exposed to the attic gets really cold – cold enough to lead to condensation problems if too much moisture accumulates up there. Think about your bathroom mirror – that mirror is at room temperature, maybe 72F.

What should the temperature in my attic be?

What is the ideal attic temperature? Ideally, you want to keep your attic temperature within 10-20 degrees of the outside temperature. If the attic gets too hot in the winter, it can cause issues like mold and ice damming. In the summer, an excessively hot attic can cause high utility bills and can damage your roof.