The previous owners of our house finished the attic and put in absolutely no ventilation.
Finished attic no ventilation.
Gable vents may circulate air through only a small percentage of your attic.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
A combination of air sealing and insulating the attic floor while providing ventilation considerably reduces the potential for condensation as warm moist air is less likely to enter.
The energy savings touted by unvented attics can be as high as 20.
Unventilated attics can help to mitigate energy loss through leaky ducts or ceiling fittings.
I hope someone can help us and the 2 contractors who have diagnosed the problem as nothin to do now.
We have been told that we cannot put in ventilation now because there is no space left between the insulation and the roof.
Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all.
However if moisture is able to enter the unvented attic space it may lead to roofing panel issues.
Without properly ventilating the roof your finished space can be just as unpleasant as an unfinished attic.
Without properly insulating your finished attic room will also be cold in the winter.
The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.