Last edited by TapTapTap; 01-05-2021 at 04:26 PM.
Ken & Sherry
Williston, VT
16x34 Sugarhouse
1,500 taps on high vacuum, Electric Releaser & CDL Sap Lifter
Wood-Fired Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan & CDL1200 RO
https://www.facebook.com/pumpkinhillmaple/
Not to take away from some of the good advise listed above, but if you want a cheap and fast temporary solution, you might try what I did. I too had a condensation problem in an area of my sugar shack. I took plant bed canvas, which is just real light/thin material, a bed sheet would work, and attached it to the bottom edge of my rafters. I don’t know if it partially insulates the roof metal, or allows the air to travel up the rafters keeping the moisture out. Anyway it doesn’t rain in there anymore.
Sorghum Producer
60 Bee Hives
200 Acres of Ky hills
225 Taps on Gravity
2018 - Lapierre 2X8 Storm
1963 Military M37 Sap Hauler
and if things get tough...M35A2
youtube videos
AFretired, That is a great, cheap and fast idea. Are you talking about the black fabric you lay down to prevent weeds?
No, it’s white and real thin, but anything like it would probably work. Cheap flat bed sheets would probably work. I just stretched it tight and stapled it to the rafters.
Sorghum Producer
60 Bee Hives
200 Acres of Ky hills
225 Taps on Gravity
2018 - Lapierre 2X8 Storm
1963 Military M37 Sap Hauler
and if things get tough...M35A2
youtube videos
20210106_143621.jpg
This what I did.
Sorghum Producer
60 Bee Hives
200 Acres of Ky hills
225 Taps on Gravity
2018 - Lapierre 2X8 Storm
1963 Military M37 Sap Hauler
and if things get tough...M35A2
youtube videos
If you do add rafters, there is no reason to use 2x8's for a 12' wide structure. Does the top have a peak style or an arched type? If a peak, add a bottom plate then 2x4 studs max 24" spacing, thus 55" will need 2 between each, then a top plate. Add at least 1 or better 2 cross ties to prevent spreading. Then 2x4 rafters, or if concerned even 2x6 rafters. Then put plywood or OSB on it, then ice/water shield and finally steel roofing. As long as the rafters are 7' or less and you have a 3/12 or steeper pitch 2x4's are sufficient on a 3/12 or steeper roof (3" rise per foot horizontal). If you try the fabric idea I'd suggest just 1 season, then do it right.
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.
If the OP is going to be adding rafters, top and bottom plates, studs and then sheeting...may as well just build a new structure and be done with it.
I don't see how he can get any pitch at all unless the new "roof" is built over the top of the arch roof on the carport.
Adding to that carport is a bad idea...hanging up a sheet to absorb the condensation is harmless and will solve the immediate problem.
John Allin
14x18 Hemlock Timber Frame Sugar House 2009
Leader 2x6 w/Patriot Raised Flue Pan 2009
Leader Steam Hood 2014 - Clear Filter Press 2015
Leader Revolution Pan and SS Pre-Heater 2016
CDL Hobby RO & Air Tech L25 Hi Vac Pump 2019
06' Gator HPX to collect wood & sap
14' Ski-Doo Tundra for winter work in the woods
Great Family 3 grown kids+spouses and 7 grand kids who like the woods
7th Gen Born in Canada - Raised in Chardon Ohio - Maple Capital of the World..<grin>.
I still say hoods and run the vents through the roof, A couple Vent hat on the top simple done!!!
Blaisdell's Maple Farm
started on a 2x2 pan in 2000 and now
custom built oil fired 4x12 arch by me
Thor pans Desinged by Thad Blaisdell
4600 taps
The thing about hoods and vent pipes, if designed correctly and installed correctly they should be able to remove 95% of the steam from the boiling room. We do have hoods and stacks and generally have only one or two drops of condensate per year off of a nail coming through the roof! Approximately 8000 gallons of water go out the stacks per year. or about 130 gallons per hour when boiling. I did bot want that in the room with me and friends, during boiling.
Regards,
Chris
Casbohm Maple and Honey
625 roadside taps + Neighbors bring some sap too!
3x10 King, WRU, AOF and AUF
12" SIRO Filter Press.
2015 Ford F250 PSD sap hauler
One Golden named Maggie, Norwegian Forest Cat named Lucy
Too many Cub Cadets
Ford Jubilee and several Allis WD's, and IH tractors
1932 Ford AAB ton and a half, dump truck
www.mapleandhoney.com
Thank you all for the replies. You've given me plenty to think about and i appreciate the help.