My sugarhouse roof is only 6/12 with 1x8 spaced 8". Wish I had used plywood. It rained until I made a hood and vented the steam into the cupola but not thru the roof. Make or buy a hood or use plywood to make a solid surface. I never considered it back when I built my sugarhouse only to learn from really cold drips on my head and down the back of my neck later.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.