If you have an attic on the top floor of your home, it is important that you have efficient ventilation. The attic can not only have an effect on your home, but on the roof as well. If you lack proper ventilation, your roofing materials might start deteriorating due to high heat and extra moisture. Here are some of the different attic ventilation options to consider. Mechanical and Non-Mechanical Before you get into the specific types of attic vents, you first need to decide between mechanical and non-mechanical.