Been trying to find a reputable and concrete answer as to what type of ventilation we should use on our ranch house that has a 3/12 pitch shingled roof. The house is located in the Cincinnati Ohio area.
The house was built in 1958 and according to our neighbor who has lived here since 63 the house originally had a roof turbine for ventilation that has long since been removed.
I know of two types of ventilation we can use; either gable vents or soffit vents with a ridge vent. I just cannot find a specification from something with authority that says that on a roof with 3/12 pitch that soffits with a ridge vent will be effective or correct for the application.
We are being pushed strongly in the direction of gable vents by a busy body family friend who is advising and helping us, but that will require some significant modifications to the sides of the house not least of all the relocation of electric service line coming into the house.
Meanwhile most others recommend soffits with a ridge vent.
Unfortunately my situation has us stuck between a rock and a hard place with regards to our "advisor" that is out of my control mostly, which is why I'm hoping for an authoritative specification on what we should be using.
I've tried many Google searches as well as looking into the Ohio code with no definitive answers
Thanks for any assistance.