Attic Ventilation…Who Cares?
“Why in the world should I care about ventilation of my home? Does it really make a difference?” These are questions many of you may be asking yourself after reading the title to this article. The answer is a yes for some of you, and others of you may stop reading before I finish this sentence.
For those of you still reading, improper ventilation can lead to or cause: excess humidity & precipitation inside the attic; warped or rotted decking; overheated attic; ice dams; and water spots on your ceiling… just to name a few!
So, if I still have your interest, let’s look a little closer:
The reason you may think your roof is leaking after snow, even if you had no problems during the rains we have had lately.
Water Spots – Water spots don’t always mean that there is a roof leak. However, they always mean that there is, or was, a problem that needed correcting. When the spots first show up following a “Dry” snow storm it is likely a ventilation issue. Ventilation will always equalize the ratio of intake vs. exhaust. When the total amount of intake (soffit) ventilation is equal to or greater than the total amount of exhaust (roof) ventilation you have proper air flow. When the total combined amount of ventilation is adequate for the attic size (Calculations based on the 1/300 rule), and the total amount of intake ventilation is equal to or greater than the total amount of exhaust ventilation you now have a properly ventilated attic (Given your system did not break any of the other steadfast “Not To Do Rules” of ventilation).
There is so much more to proper ventilation than the space for this article allows. We will be posting part 2 and 3 later this month! Stay tuned and thank you for reading. If you think your home may have a ventilation issue please click here to have one of our very qualified specialists contact you and give you a free ventilation inspection.