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Re: [nafex] glass
Well My 2 cents.
I have been replacing my old double paned aluminum windows with Anderson
High E windows. The one in my kitchen is about 5 foot by 9 foot. Big window
center, with a small windows for vents each side. The first year I tried to
start and grow seedlings they grew tall and leggy and reached for the
window. High E reflects the rays so they do not penetrate the house. So now
I have to start inside, and transplant or move to my cold frame. Any plants
that flower especially do reach for the outside. So you have to watch for
this on double glazing or thermopane. High E has a film that cannot be seen
between the panes.
From: Thomas Olenio <firstname.lastname@example.org>
Not an expert, but Lexan is the best glass for greenhouses, preffered by
those with deep pockets everywhere. (smile)
It is all a matter of light transmission. Lexan is the best for light
transmission, and white sheet plastic is the worst, but plants still grow
under under the white plastic.
You need to answer some basic questions before you proceed.
What plants do you want to grow
Positioning on lot
How much sun do you get
Type of covering (lots of choices better than glass)
Size of greenhouse
There are a lot more questions I did not list.
If you live in Arizona would Lexan be a good choice, or would you be
creating a heat problem during the summer months. Would less light
transmission be optimal for you? Will you need whitewash (liquid shade)
or shade cloth? Do you get a lot of hale, is snow load an issue.
You may be best off to build a small hobby greenhouse first ($100 and
under) and test things out. Then go on to a bigger better models.
Not an expert, just things I have picked up from a greenhouse egroup.
I am building a portable gothic arch myself this season (8.5'x12') and the
plans are free (Extension Service), and materials cost under $100 US.
Let me know if you want the link to them.
Ontario, Hardiness Zone 6a
On Wed, 11 Apr 2001, del stubbs wrote:
> We've been offered a bunch of double pane glass, cheap. I think to put it
> aside for next years greenhouse building project. In the back of my mind
> remember a discussion that regular window glass is the wrong kind of
> to use for growing plants. But people certainly grow and propagate inside
> their home's windows. Any opinions? Any knowledgable glassophiles out
> there? Thanks, Mn.Del
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