Green house on flat roof?
- Thread starter vcleo
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DaveyDIY
Extreme DIY Homeowner
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Is there any support in the middle?
20' is around the Max for a 2x12 span
Without any support in the middle of the span I would say no
Interesting a flat roof in Alaska
I would think you would want a slope for snow to fall off
20' is around the Max for a 2x12 span
Without any support in the middle of the span I would say no
Interesting a flat roof in Alaska
I would think you would want a slope for snow to fall off
DaveyDIY
Extreme DIY Homeowner
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Actually depending upon the wood the 2x12's are pretty close to being rated as a floor for a 20' span. It would be a bouncy floor. Once a beam is installed to cut the span in 1/2 the 2x12's will be fine as a floor - plenty of support.
The only concern (maybe?) is you do not want to ruin the roof - IE cause leaks ?
A greenhouse would be fairly heavy - depending upon how much dirt/plants you want to put up there, Unless you are just using it to grow out seedlings
Possibly you could use one area as a greenhouse near a corner, then the rest as a deck. My only though is - why do this on the roof?
My greenhouse is on the ground, facing south - up against the house. It can get up over 100 in the Spring & fall & can help heat the house
I can see a deck on the garage if there are decent views
If not then you are better off building it on the ground
The only concern (maybe?) is you do not want to ruin the roof - IE cause leaks ?
A greenhouse would be fairly heavy - depending upon how much dirt/plants you want to put up there, Unless you are just using it to grow out seedlings
Possibly you could use one area as a greenhouse near a corner, then the rest as a deck. My only though is - why do this on the roof?
My greenhouse is on the ground, facing south - up against the house. It can get up over 100 in the Spring & fall & can help heat the house
I can see a deck on the garage if there are decent views
If not then you are better off building it on the ground
Right now the garage gets wonderful sunlight from mid morning to late evening and without cutting down some mature birch and spruce that area is an ideal and unused space. I think you have me convinced to keep things on the ground just because of all the downfalls to trying to make it work, although the view is pretty nice up there.
