Attic ventilation question?

I recently purchased a new build home. However I noticed my attic has no exhaust ventilation. It just has 67 soffit bird hole vents that are 2 1/4 inch each with mesh inserts. Building code in my area dictates the 1/150 rule. Are the bird holes sufficient by themselves?


I forgot to state the attic area is 1200 square feet

Update 2:

My home wasn't individually inspected. The building inspector inspected one model like mine and passed all of the others in the development

5 Answers

  • 8 months ago
    Favourite answer

    Not only do you need soffit openings but also ridge vents. The ridge vents have as much or more to do with the degree of ventilation. 

    I find it hard to believe a new house could pass inspection without the required roof ventilation. 

  • 8 months ago

    It depends on how they function

  • elhigh
    Lv 7
    8 months ago

    Since you didn't specify the size of the attic, we cannot say whether that's enough or not. But since you have been permitted to occupy the house, we have to assume that it passed inspection and that the supplied venting was therefore deemed sufficient.

  • 8 months ago

    your contractor and the building inspector think so, yes.

    if you're very concerned and have shingle roof, you can easily add a ridge line vent system -- it's a handyman and power saw job.

    Source(s): grampa
  • What do you think of the answers? You can sign in to give your opinion on the answer.
  • 8 months ago

    As you don't think it is necessary to HINT at the size of the building, I SERIOUSLY doubt you have a clue the amount of venting present. Given that there are generally an equal number of vents on both sides of the roof, I doubt 67 is an accurate count.

    Update: You FLAT OUT LIED when you claimed the inspector looked at the model and approved the whole development. Your comments to my answer are even less credible than that BS.

Still have questions? Get answers by asking now.