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  • Greenhouse considerations

    A relative is getting a new GH and asked for advise
    Here is what I said, anyone want to add to it ?
    Thanks
    Jimmy

    Greenhouse considerations
    Aluminium I assume.
    Base, Do you want concrete or soil. With soil weeds grow up around base. with concrete its much cleaner, make sure the base is such that water drains off it.
    Glazing , glass is best either normal cheap horticultural glass, or expensive safety glass.
    Ventilation, an auto roof vent and also an auto end louver vent
    Size, mine is 8 by 6 foot but a bit bigger might be nice.
    Door, mine is a single sliding door but you can get double doors.
    Bench, I made mine out of wood but normal is aluminium with wood slats.
    Propagator, electric temperature controlled
    Shading, I use cool glass painted or sprayed on the outside, it wipes off but rain does not wash it off. You can get roll down blinds.
    Electrics, for lights and heat.
    Location, plenty of sun required.
    Wires, I have wires strung round the roof such that I can attach string to grow toms up.
    Monitoring, A max min thermometer. I have a DIY radio setup !
    Drippers, for when on holiday.
    Heating, An anti-frost heater of some form.
    Expect the worst in life and you will probably have under estimated!

  • #2
    There is the difference between what one may like and what one can afford

    Whatever Greenhouse size you get it will be too small and you will wish you bought bigger
    If you can't afford glass solid polycarbonate is a viable and acceptable option.
    Greenhouses that are in part shade during the day still work well and are less prone to over heating in the height of the summer.
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    • #3
      I can recommend the Rhino and you used to get safety glass for same price as ordinary, been trouble free so far.
      Don't bother trying to heat mine up here, I'd need my own power station. Having a door with no step is handy, mine has double doors, so I could wheel a barrow in and out with ease. Auto vents are a must unless you never go out and I don't have auto watering, but it would be nice. I don't have a concrete base as I like the option of growing in the border soil.

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      • #4
        Think about the layout and allow for the path - ?down the middle.
        If on soil, a paving slab path is good.
        What do they intend to grow? Plan for it.
        Height at eaves and apex & doorway. Don't want to stoop if they're extra tall people.
        Any mobility issues - step over at doorway. Some GHs don't have this. .

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        • #5
          Height of the eaves - if they're growing tomatoes they'll want a reasonable height for them, not just 3 or 4 foot.

          Louvre vent as well as the roof vents - all with automatic openers - to get more air circulation.

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          • #6
            I'd add watering.

            My preference is for a large collection tank outside connected to a smaller tank inside, in which I can dip-fill a watering-can. Obviously sinking the connecting pipe in to the ground before doing other work gets one job out of the way before doing any building.

            It might also be remarked that during the colder mounts of the year the water tanks you have in the greenhouse act as heat sumps - so when they warm up in the day and radiate at night they do help to moderate night-time temperatures

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            • #7
              Originally posted by nickdub View Post
              I'd add watering.

              My preference is for a large collection tank outside connected to a smaller tank inside, in which I can dip-fill a watering-can. Obviously sinking the connecting pipe in to the ground before doing other work gets one job out of the way before doing any building.

              It might also be remarked that during the colder mounts of the year the water tanks you have in the greenhouse act as heat sumps - so when they warm up in the day and radiate at night they do help to moderate night-time temperatures
              Yes I am setting up an external tank. An old dustbin set on an old beer barrel. Just the right height to feed of GH gutters. And also should give a good head to my driippers. I have all the bits and will set up in spring.
              Thanks for all the comments
              Jimmy
              Expect the worst in life and you will probably have under estimated!

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              • #8
                After the first couple of years of owning a greenhouse on our previous plot, I'd recommend getting in a few spare panes of glass .
                Our site was quite exposed and twice a year we had breakages due to high winds...and just when you need a new piece of glass..so does everyone else and there is either a wait of a few days/weeks or a shortage of greenhouse quality glass.
                "Nicos, Queen of Gooooogle" and... GYO's own Miss Marple

                Location....Normandy France

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