Thanks for the responses. Yes Kirkhall, i am more than familiar with a traditional vented attic, but was constructing an unvented attic, as noted by "worthy". I used 5-6" of open cell foam, and as i stated in original post, i am not confident in achieving even coverage or not having voids. This may explain the high heat but the high (88%) humidity is harder to figure out as this reading was taken when outside air and living space air had RH of 35-40%!? Assuming correct ( i know ;)) installation is achieved, i think the science and principle of unvented attics is sound, especially if HVAC systems ( like my own situation ) are in the attic. Theory being that heating and cooling costs are reduced due to a more even temp. in attic year round. I also believe that the traditional method of venting attics is flawed from an energy use angle. Vented attics are basically big chimneys sucking conditioned air from living spaces through ceiling penetrations. And even if they are sealed correctly, fiberglass is not an air barrier, allowing cold air in winter to sink to sheetrock level.
I realize that my foam job is a C+ at best, but just wondered if anyone had any insight to the high humidity levels?
I did reinstall Roof fan and will install 2 Gable vents with the intention of blocking all 3 in the fall with rigid insulation to hopefully give back some of the benefit of the foam job for the winter.
And yes, i know closed cell is a better insulator than open cell, but i read about problems with closed cell masking roof leaks, and had the open cell anyway.
Q
Offset front door
Q