hello, i am an architecture student designing a hydroponic farm/housing project, and i am working to familiarize myself with climate systems within greenhouses to ensure proper conditions.

a couple of questions:

• do you install your cooling pad right next to your entry vents?
• can you rig the system to send the water to naturally circulate back up to the top of the pad? or does it need to be manually cycled?
• i live in atlanta, georgia - humid climate, but i still hear these walls can cool your air by around 10 deg F when relative humidity is around 60%. are there other cooling methods you would recommend to pair evaporative cooling with for more humid climates in the summer?

thanks so much! any feedback or referral to quality sources would be immensely appreciated!

Around 1 my greenhouse peaks at 100-105 degrees, what can I do to help bring this down?

My greenhouse (4.5m²) is on a wooden deck, which is fine in summer because it allows some air flow from beneath. But it is terrible in winter.

I live in Norway, so nothing will be growing there during the winter, but I am overwintering a lot of plants. I won't be heating it in any way, I just want to keep as much of the cold out as possible.

I have been trying to google some solutions that won't be too expensive, so I came here to see if you have any ideas and to get your input on my ideas.

My thoughts: 1: using a tarp to cover the floor? It won't insulate much, but will keep most of the wind out?

2: foam boards, or layered sleeping mats to insulate (And maybe with a tarp over/under them?)

3. A few articles said to use bubble wrap on the floor?

I am doing that around some plant pots that need extra protection, not sure about using it on the floor though?

4. Thermo foil (Buble wrap covered with aluminumfoil). Said to insulate and be reflective. (See biltema.no -> "termofolie" for more info)

Which alternative or combination of alternatives would you try? Or do you have any other ideas?

Thank you in advance!

I have had this poor thing for I'd say 5 years or so, after all those years of freezing winters and relentless wind blown uv intense summers 1 autumn/winter in a greenhouse and I am about to see my first flowers ever.

Looking for Advice on Two Greenhouses

Hi everyone! I’m looking for some advice on choosing between two greenhouses, and I’d love to hear your thoughts.

1. Option 1:
   • Price: Free
   • Condition: Not dismantled, but the door is currently not attached. We couldn't find any brackets to reattach the door. Does anyone know if these brackets are easy to buy?
   • Side Note: If I can’t get the door to fit, do you think it’s worth keeping this greenhouse for spare parts?
2. Option 2:
   • Price: £50
   • Condition: Already dismantled. I’m a bit concerned it might be harder to put back together.

Which one would you go for? Any advice on the door brackets or reassembling a dismantled greenhouse would be really appreciated! Thanks in advance!

Option 1

Option 2

Hello all,

I live in northern Florida zone 9b and have about 150+ plants in my apartment. I have a huge outdoor deck that receives full sun and would love a cost effective and good way to transition some of my houseplants outside, at least until any cold months. Does anyone have any recommendations? I’m thinking either a shade cloth that I could try and tie to the roof and part of the porch or maybe one of those plastic / mesh greenhouses from Amazon or something like that? Thanks so much!

I live in a tropical country, French Guiana, where heat and sun are constant throughout the year. This, in itself, presents many challenges that I'm not used to. However, the main difficulty for me comes from the heavy rainfall we experience. The annual precipitation in French Guiana can go as high as 4000mm a year (some of the highest in the world). This causes many non-native plants to suffer and die.

I've tried to grow plants on my terrace, but I found that because it's so hot here all the time, the plants lacked adequate sun exposure. A traditional greenhouse could solve the problems of rain and sun exposure, but it would make the heat even more intense.

The solution: a modified greenhouse, with the bottom replaced by a mosquito net. I bought a cheap, second-hand, pre-built greenhouse for 50€ and sewed a net to it.

This is still very much in the early stages, as you can see that not much is happening inside yet. I'm currently building some furniture.

I currently only have two flowering lettuces. After many failed attempts at growing lettuces, these are the ones that finally succeeded. I grew them under a sheet of polycarbonate, which is what inspired me to create this greenhouse. :)

Why are there so many female mosquitoes in my greenhouse? Sun goes down and they come out. Are they vampires?

Getting ready to get a greenhouse up and running. I will be running water and power ( cat 6 too). I feel like a 220v 30 Amp circuit sould be plenty. It's a 10 by 16 with cedar on the bottom half. So we are talking heater, power for the thermostat controlled vent, and some lighting maybe fans at time. Oh and Christmas lights, it's got to match the house. What does everybody think.

Anyone have any experience or knowledge about the greenhouses that solar innovations make? I know they are very expensive and all custom.

Hello everyone!

I am currently saving up to purchase a greenhouse next spring and I also recently acquired some chickens and a coop.

I’m thinking ahead to winter here (zone 4b with whole weeks in the negative temps) and am curious if anyone knows of a solar panel I can install on a roof and then just plug a heater into?

I’m afraid my current understanding of solar panels is minimal and for some reason I have this idea in my head that it will be a complicated setup with wires everywhere but surely in 2024 we’ve reached the point where I can just screw a solar panel onto a roof and attach an extension cord to it - right?

Grasshoppers have come into my greenhouse.

They will eat all of my tomatoes maybe. What do I do the stop them multiplying?

We were able to remove him safely!

Pros- cheap, cheap, cheap. Excellent heat sink.

Cons?

I have a 10' x 12' greenhouse, 3 x walled polycarbonate walls, 5 x walled polycarbonate roof material. Can anyone give me advice on a cheap Under $200 heater option? I used an electric space heater last year, but it was difficult to keep it warm enough without running it constantly, which would be an extremely expensive electrical bill. I have heard I could purchase a diesel motor coach heater as long as I vent it outdoors. I would need to hook it up to the electric outlet to recharge the battery as well. Any thoughts?

Hi,

I am trying to maintain 99% humidity levels in my greenhouse which is used for propagation of softwood plants. Its 1400 sq/ft with natural ventilation and 50% shade net as temperatures reach 45 degree Celsius without it. To increase the humidity I have installed a misting unit with 25 pieces of 0.3mm nozzles. It sprays for 50 seconds every 4 minutes. However during clear days the temperature rises to 38 degrees and humidity drops to 40%. The plants directly under the nozzles are oversaturated with water while those away from it dry up quickly. Closing all vents and doors leads to higher temperatures and humidity levels around 60%.

Please suggest improvements to this setup. Is a air circulation fan necessary? I am also considering installing a fogging system.

Hey all! Looking for some guidance and recommendations for a small greenhouse at my place. I want to be able to grow herbs and some teas year round, but my outdoor space is limited (and is a rental so I need to be cognizant of the footprint), and I have no outdoor power for heat or lights.

I was looking at both small cold frames and the PE cover greenhouses, but realize that both may need at least some supplemental heat over the winter? I live in Oregon, zone 8b I believe, if that helps at all.

I was looking into the possibility of a very small solar panel for any supplemental heat or lighting, but realize that would not be as simple as first thought. My other idea was having 1-2 rechargeable power stations I can swap out as needed to run anything, but again realize that may not be sustainable. I also wondered having the greenhouse up again the side of the house may help with heat.

I guess I’m looking for advice on the kind of greenhouse (it needs to be small and not a major build and be easier to take down), and whether in my zone I need a ton of supplemental heat in the winter, and if additional lighting would be necessary (my yard gets a great deal of light throughout the day, even on cloudy days).

Any advice or suggestions or telling me I’m hopeless would be welcome!

I am wanting to grow higher temperature, higher humidity plants. We have a space that is 10x16' but fairly difficult to access with equipment to pour a slab.

I am open to a prefab kit or building from scratch. I am just not sure what my best bet is for limiting heating costs in the winter. The current plan was pressure treater wood framing with Solexx panels because they are easty to get locally but that won't do much for insulation in Winter. So I was considering adding a 2nd layer of some sort of plastic film on the inside of the 2x4s to create a dead air pocket to help with insulation.

I also wanted to have a ~200 gallon fish enclosure which would help stabalize temperatures slightly.

Would putting pressure treated lumber directly on the soil, adding weed guard and filling with gravel be a reasonable option for the floor and foundation?

Are there significantly better options for insulation for winter?

My budget is pretty flexible. I just want to make sure that the money is well spent. It seems like I can build what I am describing for $1,500ish but if I could get a much better building for like $6-8k that wouldn't be out of the question.

Just curious, install cost seems fairly affordable for that size, thinking of building one myself. Have a friend who can do the plumbing pro bono.

Has anybody experimented with using timing valves for both the water source and draining the hoses during winter for your irrigation system as well as a timer for turning on the pump in the use case where it is well water?