Need a new roof on my house in Lehigh Valley area in PA. My house has a gable for the original house footprint running horizontally and an addition on the back that is the same width but gable is perpendicular to the front. I currently have 4 gable vents, an attic vent blowing out in the center of the attic, vented soffits on only the addition, and two box vents on the original front half of the house.
Had a roofer come in and being super persistent on ridge vents on both gables. He said he’d leave the gable vents for inlets. Is this a good idea? From what I’m seeing, ridge vents should only be used with vented soffits? I have then on the addition but not original front of house and would only be able to add on one side of gable due to the addition . From my understanding, roof is failing due to a poor install, not due to humidity issues.
Have another guy come in slightly cheaper keeping the current ventilation scheme. Leaning towards that but wanted to get more opinions on if the ridge vents are worth it if your house doesn’t have vented soffits all the way around.