I suspect that our attic isn't vented enough. We have a power vent which is used in the summer, but I suspect there isn't enough air flow to wash the underside of the roof with cold air in the winter. We have gabel vents, but no soffit or ridge vents. (the house was built circa 1955)
Do I use turbine type vents? Install a ridge vent--and then wouldn't I have to install soffit vents?