Thanx for the info. Tin roof no insulation, want to use single wall stove pipe , will look at stove store ideas , may create home made thimbles for upper floor and waterproof same for roof . Mostly worried about water ingress around roof opening and how to prevent it. Temp. at floor and roof should be < 200' F. Lower room <7' ceiling ,upper 6.5. Stove ,coffee, compressor and sandblaste ,ladder to loft.
Last edited by Malcolm; 10/24/22.
