Can you over vent an attic? ...
Answers: Your attic is supposed to be the same heat as outside air. If it is -5, your attic should be like. You want good drying so there isn't a indiscriminate for any condensation in the attic because near condensation comes mold on wood.
You want your building insulated properly in the ceiling so in attendance isn't a heat loss into the attic creating more condensation. Have you notice in the summer the attic is cooking hot? People put contained by more ventilation when the warmness is actually generate on the shingles and transfers inside through the plywood.
There are lots of considerations, are you having problems? Go to http://www.thermoguy.com/globalwarming-h... to see grill generation and http://www.thermoguy.com/globalwarming-h... to see the bake loss function
Thats a good give somebody the third degree. I would say no if you enjoy enough insulation. trapped moister within attics causes tons problems
Venting releases moister and also makes shingles concluding longer by keeping the attic cooler in the summer and cold surrounded by the winter preventing ice dam..