Dean W.

What type of shade cloth if any do some of you use for greenhouses?

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sunsetsammy

Good question

I found a roll of weed barrier fabric that I'm considering using. It is black but allows some light thru.

sunfish

Dean W.

Thanks, I did a little research too. It seems some suppose the white reflects sun better and black holds in heat.

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Scuba_Dave

I'm planning on putting a water heating system on top of my greenhouse to block some light
That way I can heat my hot tub

Abnshrek

That the cloth with the aluminite wove in like a space blanket. It keeps the heat in @ night. :^)

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I'm a Nannerhead :^)

sandy0225

The black is cheaper, so that's what we use
I can't afford aluminet or white yet!
We use anywhere from 30% to just shade on the big house where we grow production, to 50% for hostas in the shade house. We use knitted because if it gets a hole in it or you need to cut it, there's no sewing involved.

The 30% shade along with the fans and the roll up sides mean that it's usually about 10 degrees or so warmer in the greenhouse than outside. We also run misters that come on for 2 minutes every other hour or so starting at 11, 12, then 1, then 3 to keep the humidity up and lower the risk of spider mites.

The last shade I bought was from greenhouse megastore (online) but I've gotten it from growers supply/farmtek too.

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Sandy Burrell



Northern Tropics Greenhouse
1501 East Fuson Road
Muncie, IN 47302
www.northerntropics.com


specializing in bananas, heirloom tomatoes and water gardening plants~
check out our new online store at our website!

Dean W.

Now I just need to get an okay to build it from the HOA.

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Richard

30% provides the best mix of durability and light flow. It will protect plants from hard rain and windstorms yet allow plenty of light for blooming and fruiting plants.

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bananafarmer

The cheapest way is to apply chalk on the outside of the greenhouse, mix it with water and apply it. It is wihite and has a great effect.

You can choose the shadow-strenght yourself, by the amount of water you mix within the chalk.

Also the chalk is resistant to a few rainfalls. Furthermore its easy to remove, when you do not need it anymore.

sunfish

How do you apply it ? Thanks

bananafarmer

Depends on the surface, when it is not too much surface, apply it by hand.

When you have a greater surface , you can prepare the chalk in big barrel, then put an immersion pump at the bottom of the barrel, then apply it with a hose that is connected to the pump,

applying with an immersion pump and a hose is the easiest way, gives great results. When the pressure is strong enough, you can stay at the ground without climbing up the greenhouse.

My advise, first test your system with normal water, is the immersion pump strong enough? You should mix the chalk very good with water, before you put it into the barrell.

Prepare it, mixing it with water, than pour it over the surface, the chalk will flow like water, it will soon dry and than you have your shadow.

The chalk stays at the surface it is flooding over,just be patient. Then have a look from the inside,you will realize the shadow, also spots that still give light.

Another advise, wear really old clothes, long-sleeved, use an eye-protection and gloves, after the application immediately take a shower, pure chalk is very agressive to the skin, its not burning or killing you, its just awkward.

Acording to your needs apply again and again.

Richard

I like this method for reducing the amount of light passing through an existing translucent roof.

However, if you are building a greenhouse in a temperature environment -- then it would be cheaper (per square foot) here in the U.S. to purchase 30% shade cloth.

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bananafarmer

Here chalk is not very expensive, I used about 16 units of 30 kg, for my whole greenhouse.It cost me about 45 bucks.

But the real hard thing was to apply the chalk to the up side of the greenhouse.

I have superb shodow and really nice temperatures inside the greenhouse, today outside was 28°C inside was about the same, thats great temperature.

In the near future we will get 35°C here.

Dalmatiansoap

Talking about shade cloth, whats the price in US? Its not cheep stuff here and Im still thinking can I find better solution for my tomatoes

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sunfish

used a white bed sheet maybe

Window screen whoohoo

Palm leaves whoohoo

Banana leaves whoohoo

Elephant ears whoohoo

Dalmatiansoap

Palm leaves seems good. Sheets are possible to "sail away"

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sunfish

sunfish

Hula skirt

hula skirts - Google Search

Dalmatiansoap

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