My husband and I just purchased our house last month. We have a pitched shingled roof built on top of a flat rubber roof. If you were to go in our attic, the floor of our attic is the old flat rubber roof.
Currently, there is no ventilation coming from the soffits. The flat roof extends to the very end of the pitched roof, covering the soffits. We do have 2 gable vents and our ridge vent that is open. There is no mold in our attic as verified by our inspector and multiple roofing companies.
My question is: Should we cut ventilation into our soffits?
The prior owner to us had lived in the house since 1996 without ventilation in the soffits - and again no mold development. The prior owner said he bought the house with the pitched roof already built and he also had debated creating ventilation in the soffits - but choose not to because there was no mold.
We have had 4 roofing companies come to check out our situation. Some say that the ventilation in the soffits is needed, while others essentially say “Don’t fix what isn’t broke”.
Does anyone know why mold hasn’t developed? Do flat roofs keep the hot air out of the attic from the living space during the winter? Is this why the roof hasn’t developed any problems with 24+ years without soffit ventilation?
I appreciate the help with my scenario.