Removable Lean-to Greenhouse

[dcarch]

I am designing/building a removable lean-to greenhouse to gain may be more than a month's growing time in Zone 6/7. I hope to put my plants in ground 4/15. In my area I think normally it should be 5/15.

Because I don't have the room, the greenhouse will be in the same space as the final patch, so it has to be removable once the plant get to be may be 30" tall.

Once complete, I think the greenhouse can be installed and dis-assembled in less than 15 minutes and be stored away in very little room.

dcarch

[Rena]

That brick/stone wall will be your friend. It will collect heat during the day and release at night!!! Do you have a place to vent it? It will heat up quick! Very cool!

[dcarch]

Originally Posted by IMISSCOLO

That brick/stone wall will be your friend. It will collect heat during the day and release at night!!! Do you have a place to vent it? It will heat up quick! Very cool!

Thanks.
Regarding venting, I will have small vent windows.
Regarding brick/stone wall, I will post a question in "General Discussions".

dcarch

[ddsack]

dcarch - how is your lean-to coming along? I hope you are taking pictures of all steps of construction and will show us the end result. I will be very impressed if indeed you can take it down and re-install it in 15 minutes. I have a south facing wall on my attached garage that could take a narrow lean-to.

Dee

[dcarch]

Originally Posted by ddsack

dcarch - how is your lean-to coming along? I hope you are taking pictures of all steps of construction and will show us the end result. I will be very impressed if indeed you can take it down and re-install it in 15 minutes. I have a south facing wall on my attached garage that could take a narrow lean-to.

Dee

A few more parts I need to get.

The concept of putting this thing together will be unique (I think) and a first for a lend-to greenhouse construction. If it works, those of us who are space-challenged and climate-challenged will have more options.

I hope to finish up in the next couple of weeks. My seedlings are growing tall.

dcarch

[mouse]

Just a crazy thought: for a project of this dimension, the top could be made out of PTFE film, Tefzel [Dupont]or Hostaflon [Hoechst].

Tefzel used to be available in a form that had one edge with adhesive. See Eden Project, Cornwall, UK, visualize, longitudinal 'pillows'. Very good lightweight double-walled, high-insulation top requiring comparatively less structural support while shedding snow/wind/rain.

Tallman & Demarest, architects, Ithaca, NY, well-versed in these pillows. I have no financial connections whatsoever with them.

PTFE can also be used for a lightweight half-hoophouse, 2 layers, inflated. Much, much lighter than plastic, high light transmission, strong. Worth a thought for future projects.

m

[dcarch]

Originally Posted by mouse

Just a crazy thought: for a project of this dimension, the top could be made out of PTFE film, Tefzel [Dupont]or Hostaflon [Hoechst].
Tefzel used to be available in a form that had one edge with adhesive. See Eden Project, Cornwall, UK, visualize, longitudinal 'pillows'. Very good lightweight double-walled, high-insulation top requiring comparatively less structural support while shedding snow/wind/rain.
-------------------------
PTFE can also be used for a lightweight half-hoophouse, 2 layers, inflated. Much, much lighter than plastic, high light transmission, strong. Worth a thought for future projects.
m

Very interesting material. I haven't seen it being commomly used. Must be very expensive. I have gotten 4mm Twinwall poly panels for the project.

Can't wait until the snow melts so that I can complete the project.

thx

dcarch

[dcarch]

Progress pics.

dcarch

The three hinged support frames are attached to the base and the stone wall by screws.


The 4mm Twinwall poly-panels are attached to the frames by velcro and packing tape.

[Tomstrees]

Dcarch -

This is how you're going to beat me for earliest tomato ...
A couple just went ripe in my window - I know they don't count, and I've seen yours all winter -
But we're on !!!

~ Tom

[dcarch]

Originally Posted by Tomstrees

Dcarch -

This is how you're going to beat me for earliest tomato ...
A couple just went ripe in my window - I know they don't count, and I've seen yours all winter - But we're on !!!

~ Tom

Trying to get my seedling s in ground 4/1!!!

dcarch

[garnetmoth]

that is awesome. What you can do next is take the downspout, put that garbage can under it, and have free water :-)

[Worth1]

Ok dcarch I came over and looked at the green house as you requested.
I have seen it before and have seen the progress on it.
I think it looks fine and have only one question to ask.
(((What kind of rock do you have on the side of your house?))

Worth

[peppereater]

carch, what the HECK ya worried about? of course you'll extend yer season, and I'd bet yu could grow leaf crops all winter. One thing that might happen, the boston Ivy on the wall may freeze out, as it's roots will think it's summer while the tops are exposed.
Only saying this 'cause I'm jealous and have to find fault. Hehehe.
The twinwall poly should be excellent, and any additional heat source, I mean even a lightbulb, possibly, would get crops like spinach and cool season crops through some pretty rough winters.

[dcarch]

Originally Posted by garnetmoth

that is awesome. What you can do next is take the downspout, put that garbage can under it, and have free water :-)

That sounds like a fantastic idea!

Originally Posted by Worth1

--------I think it looks fine and have only one question to ask. (((What kind of rock do you have on the side of your house?))

I take it for granite.

Originally Posted by peppereater

-------------------Only saying this 'cause I'm jealous and have to find fault. Hehehe. The twinwall poly should be excellent, and any additional heat source, I mean even a lightbulb, possibly, would get crops like spinach and cool season crops through some pretty rough winters.

The next few days would be a nice test. They are predicting 28 degrees. Already passed 35-miles/hr wind test yesterday. I will be putting in a small electric heater just to be safe. BTW, the ivy is dead.

dcarch

[Tomstrees]

Dcarch -

Have you amended the soil in this bed from last year?
I remember last year seeing photos of this patch heavily blighted, no ?

Anywho, looks great ~
We got snow yesterday down here in NJ ...
I have been eating cherries from my winter project .. but really looks like I'm not going to be able to "get-into" my garden until May 1 ... I'm still working on having tomatoes in June ~

Tom