All - sorry if this has been discussed before - but need some tips on how to increase attic ventilation in a 1950 colonial with 2 gable vents. I am getting frost on nail tips on the side of house that faces north - nothing extreme but i believe indicates a need for more venting.
House does not have soffit vents (or really any kind of meaningful soffit surface). Attic fan in roof present for hot temps only which works fine in summer.
My guy says add a ridge vent. Others say this is counteractive with gable vents. The soffits are only 1-2 inches wide so questionable (and costly/labor intensive) if that would be the answer. Seems I am dealing with typical 1950-era construction technique. Roof is 5 yrs old and no major construction is in process.
Insulation is throughout and probably equivalent of R19 (under a floor); no bath fan issues, and attic door reasonably insulated.
If a ridge vent is not compatible with gable vents and my soffits (or lack of) dont make that an option, what would someone in the know advise here?
Thanks in advance.