per my post about the stupid ice dam I had, I was in the attic of the house
we just purchased and noted an even 12+ inches (or more) of blown in
insulation, and home inspector noted this to be more than sufficient for an
R38+. However, I've noticed it has been blown into all corners, completely
covering the soffits! The house has recently installed soffit and fascia,
so its completely vented soffit from end to end on both sides of the house
(large, rectangle bilevel).
this is clearly NOT a good thing, and likely the cause of the small amount
of white crystalline frost I noticed at the peak of the house. The house
has 3 12" square roof vents almost at the peak (one on either end, one in
the middle of the roof), and roughly 12 x 18 gable end vents on each end.
The roof vents were completely submerged in snow until recently, so they
were not helping :( what is the best way to maximize ventilation? I would
think just using a plastic rake, pulling the insulation back from the
soffits and leaving them open would be enough. I've seen those styrofoam
things that you push down, but that doesn't seem like it would be helpful.
what would be a good approach here? is pulling the insulation back from the
soffitts and opening them up sufficient and/or appropriate? or do I
actually require those styrofoam things? will I have to use a shop-vac to
vacuum the vents clean? since the leak, I've got to replace a few batts of
insulation, I might as well make good use of the time up there!
any advice would be appreciated.