Today’s edition of Polycarbonate Glazing Tips addresses Lexan Softlite and Polygal Polymatte. Both of these sheets have 100% light diffusion. This is an excellent choice for commercial growers or homeowners looking for healthier plants, increased yields and faster growing times. The sheets will spread the light out so it is evenly distributed to all parts of the plant, even under the canopy. Selections are available in corrugated, 8mm and 16mm sheets.
Let’s face it. Around here nothing gets thrown out until it is way past its prime. We use flats over and over again, even after they are broken. Pots, they never get thrown out. We clean them good and bleach them and reuse. But, everything must ultimately come to the end of its usability. I am sure most of us do not even think about recycling our garden pots, plastic, etc. This article from Michigan State University helps us to explore this option. I must say that I do disagree with the author on one point. They stated that some greenhouse plastic and polycarbonate may not be recyclable. In fact, I have always been taught that all greenhouse plastic and polycarbonate are 100% recyclable. Have any doubts? Check with your local company before carrying your materials in.
By now, greenhouse operations have gleaned the production areas of spring and early summer plant material. I have come across some operations that have deposited used and even un-used containers, flats or carrier trays in large dumpsters for recycling (Photo 1). At each operation, I have been asked about proper disposal of these horticultural plastics and the answer is easy— recycle (Photo 2)!
In other instances, I have come across garden-retail centers that accept and collect used containers from consumers (Photo 3). Regardless of where used plug or liner trays, containers or carrier trays come from, there is a possibility these horticultural plastics can be recycled.
Building a Polyfilm Greenhouse? Not sure how to attach the film to your greenhouse frame? This video discusses the use of batten tape or base and wiggle wire systems. They are both excellent for wood frames. The wiggle wire system is good for metal frames as well. As always, we hope you find this edition of “The Greenhouse Minute” informative and helpful.
Are you wishing for a lean to style greenhouse as above, but own a ranch style home? You may have 8′ or 9′ attaching height for the back wall, possibly a little bit more. Do you think it is impossible to get a greenhouse attached to your home? Not so. There are 2 different ways we are able to fit these with our Acadian and Evangeline Lean To Greenhouses.
Lower Roof Pitch
Home Attached Greenhouse with Lower Roof Pitch
For our standard roof pitch you have a rise of about 5 inches for every foot that you project away from the house. With our lower roof pitch, we can drop that to about 2 1/2 inches drop for every foot. So, for a greenhouse that projects approximately 10 feet, that would drop your attaching height about 25 inches. That is quite a considerable amount and will accommodate a whole lot of houses.
Fascia Attached Greenhouse
Fascia Attached Acadian Lean To
Still don’t have enough height with our Lower Roof Pitch? We are also able to offer a fascia attached greenhouse. This greenhouse will attach directly onto the fascia of your home, rather than the wall of your home. This will gain quite a bit of extra height, as you need to leave at least a 4″ clearance when you go under the soffit. This is so your roof vents can function properly. Combine this with our lower pitch, and you can attach this greenhouse to just about any home as long as you are not trying to project away from the home too far. If you will notice in the picture we also supply what we call an under soffit fill to fill in from the back of the greenhouse to your home.
In conclusion, just because you have a ranch style home does not mean you have to give up on owning a lean to greenhouse. We are more than happy to help you design the greenhouse of your dreams.
Greenhouse with Solar Powered Roof Vents and Side Vents
Of course the answer to this question is yes, you do need ventilation for your greenhouse. But what if your greenhouse is in a location with no electricity? There are several options which will alleviate this problem. The simplest thing to add is roof vents or side vents. A lot of the greenhouse kits will come with these either as standard equipment or as an option. If you are building your own greenhouse, you would just frame them out using the same material as your greenhouse and cover them with the same material as well. To simplify matters even more, I recommend using solar powered openers with these. This is an arm that is operated by a wax cylinder. It is a pretty basic piece of equipment. It functions on the principles of contraction and expansion. When it is warm the wax will expand and cause the arm to open. When it is cool the wax will contract and cause the arm to pull shut. There is no exact temperature setting on these, but there is a thumbscrew at the end which can be used to adjust the opening and closing temperatures. They are typically able to open between 65 and 75 degrees F, depending on the manufacturer. They will definitely simplify your life during the spring and fall months. No more getting up in the morning and opening them before you head out to work. Then, if you get home and forget to close them at night, the results could be devastating.
Intake Shutter with Solar Powered Opener
If you are building your own greenhouse, or need ventilation in an existing greenhouse, our solar powered shutters are perfect. They will supply natural ventilation for your greenhouse. They come in 6 sizes and require no electricity. The 4 smaller sizes may be fitted into a polyfilm greenhouse without any further framing. Or, they may be installed in a framed out opening the same as the 2 larger sizes. These shutters are perfect for just about any outbuilding, not just for greenhouses.
Polyfilm Greenhouse with Roll up Side Curtains
A final suggestion for natural ventilation is roll up side curtains. These are typically found in polyfilm greenhouses only, and come with a manual hand crank.
In conclusion, not having electricity in an area where you want to put your greenhouse should not be a deterrent. Use any of these systems, or any combination of these systems to help ventilate your greenhouse. Also, if you don’t like any of these suggestions, another way to go with this is to use solar panels to supply electricity to your motorized ventilation systems.
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