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Louvre Vent. Where to place it???

Discussion in 'Greenhouse Growing' started by Spacemunkey, Feb 11, 2017.

  1. Spacemunkey

    Spacemunkey Gardener

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    Hi guys, when I've put my greenhouse together where is the best place to put the louvre vent??? On the side of the greenhouse (east/west) or the opposite end to the door(north) any advice would be most welcome :help:
     
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    • pete

      pete Growing a bit of this and a bit of that....

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      Think I would opt for low down on the opposite end to the door.
      I'd tend to only use it during summer, although I've never had any louvers, they always look like really draughty features even when closed, to me.:smile:
       
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      • Spacemunkey

        Spacemunkey Gardener

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        Thank you for your view on the louvre question. I thought it made more sense to place it opposite the door too
         
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        • sandymac

          sandymac Apprentice Gardener

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          I have mine opposite door east side works well
           
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          • Spacemunkey

            Spacemunkey Gardener

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            Would it make any difference which side the louvre went. Down here in South Wales the majority of the winds come from a South west direction. or has wind got nothing to do with it???
             
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            • sandymac

              sandymac Apprentice Gardener

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              I had to have my greenhouse east to west due to layout of garden and away from trees. Placing your louver vent opposite the door gives an even flow. wind has nothing to do with placement/
              Rgds Alex
               
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              • Spacemunkey

                Spacemunkey Gardener

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                Thank you for helping out with my question Alex, I was just unsure where to place it as this is my first venture into gardening/greenhouse ownership. I'm trying to get things right before I start.
                 
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                • ARMANDII

                  ARMANDII ADMINISTRATOR Staff Member

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                  My Green House is lined up East to West with the louvre on the Southside on the lower pane:coffee::snorky:
                   
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                  • CanadianLori

                    CanadianLori Total Gardener

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                    I have mine opposite the windy side. Been okay for as long as I've had them.


                    BIG OOPS! I DON'T HAVE A LOUVRE VENT, just a vent..... my bad.....
                     
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                      Last edited: Feb 11, 2017
                    • HarryS

                      HarryS Eternally Optimistic Gardener

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                      Surely venting louvres should be high up , to remove damp warm air . And if you have the choice , rarely possible, on the leeward side of the prevailing wind :scratch:
                       
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                      • Spacemunkey

                        Spacemunkey Gardener

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                        My thinking was, I have 2 roof vents (1 east, 1 west) the door is facing south so surely it would make sense to place the louvre vent on the rear.( north) That way all four sides will provide ventilation??? Or is that not the case??
                         
                      • CanadianLori

                        CanadianLori Total Gardener

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                        Did you say this is a 6x8? Two vents and a louvre in such a small area, placement really doesn't mean much. Making sure strong wunds doesn't rip them out should be more of a concern in MHO..
                         
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                        • Spacemunkey

                          Spacemunkey Gardener

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                          Yes Lori it's 6x 8 but everything I've read said it's more difficult to get ventilation in a smaller greenhouse?? Unless I've mis-read the information. That's why I paid extra for louvre vents. I hope I didn't pay extra for something that I really didn't need!!! Oh well I've got it, it can be used in an emergency if we get a really hot summer lol:tomato:
                           
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                          • CanadianLori

                            CanadianLori Total Gardener

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                            @Spacemunkey I don't think you can ever have too much ventilation :)

                            I just wouldn't be worried about not having enough with what you now have. Good air flow over here is mostly desirable up and out- in the summer as we get super heated summers and trying vent the hot air fast enough is a challenge. I find my fans have stopped any worry about circulating the air too and so far :fingers crossed: have not had any issues with mould or mildew.

                            Sounds like with your louvre vents, you'll have great success. :)
                             
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                            • Sandy Ground

                              Sandy Ground Super Gardener

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                              I would agree with that. As most know, hot air rises. Therefore, a louvre vent placed high on the opposite wall to the door would tend to draw air through the greenhouse and naturally eject it.
                               
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                              • CanadianLori

                                CanadianLori Total Gardener

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                                I'm not sure if I agree with that. I had thought that the louvres should be placed low to pull in cooler air to offset the amount exhausted by the roof vents. That's the way they show the placement in all of the adverts I've seen. I could be wrong but :what:
                                upload_2017-2-12_9-16-51.jpeg
                                 
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                                • pete

                                  pete Growing a bit of this and a bit of that....

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                                  The roof vents are there to get rid of the hot air, often the lower parts tend to get stagnant especially during summer/ Autumn if there is a lot of leaf growth.
                                  So opening the door at the same time as the louvers keeps an airflow and dries out damp foliage.

                                  I cant really see as the aspect of the louvers is really of much concern.
                                   
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                                  • Scrungee

                                    Scrungee Well known for it

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                                    The Louvre should be located at the rear of the greenhouse.

                                    [​IMG]
                                     
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                                    • pete

                                      pete Growing a bit of this and a bit of that....

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                                      Personally when we get hot spells.:lunapic 130165696578242 5:
                                      Which is not very often:snork:

                                      I just whip out a few pieces of glass, by releasing the clips.
                                      But that might be easier with some types of glazing than others, and possibly very difficult with the more expensive types.
                                       
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                                      • Spacemunkey

                                        Spacemunkey Gardener

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                                        When was the last time you whipped out the glass Pete ??? Was it '76 apparently that was the last proper summer we had in the UK lol:hotsun:
                                         
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