My house has 3 roofs, upper level, lower level and the attached garage and all have standard roof vents. I noticed that when I was up in the attic of the attached garage, the edges are all stuff with insulation. So no air is getting in from the soffit vents. I remove some insulation. And I think the other attics are done this way also.

1)Is there reason why someone would do this?
2)I thought you wanted air to come in from the soffit vents?
3)If I should remove some of the insulation, how much would be enough?


Any suggestion/comments about attic ventilation would be great.


Thanks

 

Most people stuff insulation in those areas because they want to keep out insects or squirrels. They should not be blocked. The reason for it is known as free venting. That is when you have an equal amount of high vents (gable and/or ridge) and low vents ( soffit and/or eave). The purpose is to prevent moisture problems in the attic that may occur without adequate free venting.