I was sent some materials from a fellow poster which have some air flow patterns for various attic/roof vent scenerios. I have gable, ridge and soffit vents. Because my ridge vents are often covered with snow I am going to leave my configuration as is. After many years I have had zero issues with my roof. Lousy venting is sure a PIA.

Last edited by pak; 01/01/13.
'Often mistaken, never in doubt'

'Ignorance more frequently begets confidence than does knowledge' Darwin