Скачать или смотреть Is a Roof Power Attic Fan a Waste of Money....or Even Worse?

We see roofers and homeowners install power roof attic fans all the time, and we often find them to be incorrectly paired with make-up ventilation so that they either 1) do not cool the attic when they are running or 2) depressurize the attic when they are running (turn the attic into a vacuum) and pull the conditioned air from the home. In the latter case, it means that the home will be cooling the attic by using its air conditioner. And this is an atrocious waste of energy and the worst outcome of installing these fans!

Insulwise's contention is that more often than not, that power roof attic fans are not necessary, and that effectively installed passive ventilation systems work better. You can learn more about our attic insulation process here: https://www.insulwise.com/insulation/...

If you live in the Pittsburgh, Pa area would like Insulwise to make your house cooler and more energy efficient (and the same for winter), call Insulwise at 412-260-6701 or stop by our website at https://www.insulwise.com.