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  • From: "Jill Taylor Bussiere" <jdt AT itol.com>
  • To: "market farming" <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: greenhouse questions
  • Date: Tue, 30 Jan 2001 08:20:17 -0600


Bill,
Thanks so much for all that information. There was a lot of helpful
stuff in your first post, and then, while I was reading the post, I asked
myself, "I wonder where the reemay goes, and how it helps", and you answered
that in this post!!!!! Before I had even finished wondering it!

Thanks
Jill
Bill McKay wrote:
> Sorry I forgot a very important point in the earlier post. If you are
> using unheated houses, you do not want double plastic. It is a waste of
> money. If your temperature goes below 20 or so for more than one night
> double layers will not prevent a freeze. Even if you get a few very
cloudy
> days with temperatures in the twenties, the inside temperature will go
below
> freezing.
>
> The key to all this is to accept that fact. What you do is have a second
> insulating layer just above the plants (remay cloth). This does a very
> critical thing. It moderates temperatures both heat and cold. The
> temperature at the roof may be 95, but under the remay it will be 55 or 60
> (the remay keeps some of the heat away and the cold ground temperature
> moderates it even more. In the evening, when the temperature drops to -2,
> your temperature at the roof will probably be o or 1 above; however,
under
> the remay the ground will not freeze. Again, the remay cloth holds in (1)
> heat from the day (2) even more important, heat from the ground.
>
> It sure works like a charm.
>
> Bill McKay in E. Massachusetts
> SeedsFromItaly-importers of quality Italian Vegetable seeds
>






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