My Son-in-law is building a tiny house for me.

I am really concerned about the insulation to use and putting vents in the eves or not, I've not seen people doing this on any of the build videos and I don't know why, my SIL wants to put in vents. There will not be attic space.

It is normal house construction with the the greenest materials I can afford on my limited budget.

It will be a gable roof, no fancy buildouts in the roof just a straight gable, loft for company to sleep in and open over the living room. We are going to use a metal roof.

I want the home to breathe, not trap moisture, not off gass and there won't be an HVAC system, just opening windows for natural ventilation, space heater or using a wood stove when its super cold. I typically like my home to be about 60 degrees, I'd rather put on a sweater than crank up the heat. In the hot months, typically just August here in Oregon, a window ac unit will suffice. There will be major vents in the shower and in the kitchen to remove moisture so we shouldn't have a mold issue.

It will be 8'x24'.

Any advice, anyone can give us is greatly appreciated.

Thanks,