Greenhouse on roof?

Discussion in 'Homesteading Questions' started by amelia, Feb 15, 2005.

  1. amelia

    amelia Well-Known Member

    Messages:
    403
    Joined:
    May 2, 2003
    Location:
    Washington State
    I was thinking about putting up a little makeshift greenhouse on the roof, the rationale being that the heat generated from below should keep things quite a bit warmer than if I were to do the same set-up at ground level. (Things are still freezing here at night.) Just wondering whether anybody else had tried this, and whether it made much of a difference.
     
  2. snoozy

    snoozy Well-Known Member Supporter

    Messages:
    3,025
    Joined:
    May 10, 2002
    Location:
    Kitsap Co, WA
    That's an interesting idea. Is your roof flat? You'd have to set up an extra strong greenhouse, I think, because roofs would tend to get more brunt of the wind. How long are you wanting to keep the greenhouse going, because even ere in WA in the summer one has to open up the greenhouse or the temps will really cook the plants. People have "living roofs" of turf, why not a greenhouse? Certainly worth a thought.

    Oh, one other thing to consider is the weight of the structure on the roof and the effect of walking around on it. It would be a very expensive tomato if you had to fix the roof!
     

  3. BCR

    BCR Well-Known Member

    Messages:
    1,026
    Joined:
    Jun 24, 2002
    Location:
    WV
    I think you could do it nicely with a balcony that could be opened up in the hot months if you wanted. But that is a costly option and you definitely want to check with someone who understands how to calculate the load (wet dirt is heavy) and your roof's ability to hold it.

    My big concern would be lugging all the dirt and plants through the house to get them upstairs to begin with.
     
  4. Windy in Kansas

    Windy in Kansas In Remembrance

    Messages:
    11,076
    Joined:
    Jun 16, 2002
    Location:
    South Central Kansas
    Are your ceiling and attic not insulated? Otherwise I don't think you should be able to benefit from this. I still like your thinking outside of the box and considering new ideas. I read an article a year or so ago that bemoaned the fact that the world is losing many of its tinkerer/inventors.
     
  5. Mid Tn Mama

    Mid Tn Mama Well-Known Member Supporter

    Messages:
    6,395
    Joined:
    May 11, 2002
    How about locating it next to a window on the south side of your house. Then you could open the window when it got too hot inside the greenhouse. Many books talk about this.
     
  6. Jenn

    Jenn Well-Known Member Supporter

    Messages:
    7,213
    Joined:
    Nov 9, 2004
    Location:
    Alabama
    Solves some of your desires, has other problems: we built a lean-to greenhouse for want of no better foundation over our sliding glass door (on the patio). So when I am willing to use home gas heat to heat the greenhouse- rare late frosts after I have delicates in the gh- I can do so by cracking the sliding door, and the gh is warmer all winter from the heat going through the glass than if freestanding or against a different wall. Very rarely for a few weeks in fall and spring the greenhouse needs or can tolerate cooling down and the house needs or could do with heating and we do so by opening the sliding door again.