Not All Benefits of Roof and Attic Ventilation are Long Term – Many are Present Immediately.
If you are like many homeowners, you likely do not expect to spend the next 30 years in the same home. Some will which is great, but many won’t. If you are in this second group, it is dangerously easy to discount the long term benefits of a well ventilated roof system (or any other benefits of a quality job) because you probably won’t be there to reap those rewards.
So let’s briefly discuss some of the more immediate benefits of attic ventilation. As you could see from the video, heating and cooling savings can be both immediate and significant. In terms of damage avoidance, mold and mildew from excessive moisture build up can start causing damage within one year. This every growing issue not only is unsightly and smelly, but can cause indoor air quality health issues. Possessions stored in the attic can be subject to that same mold. Wet rot can start very quickly and cause expensive structural damage.
Not much can be more frustrating that an winter time leak on a fairly new roof because of an ice dam. You generally can’t get roof top during such weather so your only recourse is the break out the buckets and hope that the damage isn’t too bad. Ice dams are the result of uneven attic temperatures causing uneven melting and refreezing on the roof in an uneven pattern. Unfortunately, they are easily prevented with good ventilation. Finally, when it is time to sell your home 5, 10 or 15 years after your roof’s installation, a roof that has not deteriorated prematurely or caused interior attic damage will help you sell your home (or refinance it) much more easily and quickly.