L d'Bonnie wrote:

Temps. around here drop below -40 Deg F. in the winter.
With a good fire going in the wood stove the inside temp.
near the ceiling peak is probably 80 or 90 deg. F. even with
a fan going. A lot of heat to keep snow off the roof.

How strange. Why would the ceiling be so hot with a ceiling fan going?
Is the stove red hot, with no insulation in the house walls? :-)

You want lots of R1/inch snow on the roof, no?

How can it melt with that 2" air gap?

Nick