This started in "What I did today.." but deserves its own thread:
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CarlinsDarlin
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Posted: Thu Jan 20, 2005 7:51 pm Post subject:
Today I finally managed to tear down the remainder of the small building I've been working on. The lumber I salvage is going into building my greenhouse on the same spot. I got started (just a bit) on the construction of it as well.
I also added some chicken manure, table scraps and straw to my compost bin. Did quite a bit of reading on rabbit raising in companionship with vermiculture in the greenhouse - and am leaning toward that set-up in my greenhouse. It seems like a win-win-win to me - rabbit meat (and pelts?), rabbit manure feeds the worms, worms make compost - heat from the compost and the rabbits helps heat the greenhouse in winter. I have much more to learn, but this seems like the way to go to me.
And so - Even though the prybar bounced back and hit me square in the nose during the demolition phase today - it was a pretty good day .
Kathy
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Posted: Thu Jan 20, 2005 8:06 pm Post subject:
I also worked on the new greenhouse and did some studying, Kathy . Our future greenhouse is an old 1-car garage - I tore the siding off the south side today. I bought pressure treated lumber to replace the old oak framing but can't decide which I should use. I did rescue the oak 1 x 10 sheathing for shelves.
I have lots of old double hung windows to use that I have repainted and reglazed but they still need work. I wonder if I should use plex inside?
My reading was on grass fed beef and managing pasture -
http://aes.missouri.edu/fsrc/research/index.stm
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Ludi
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Posted: Fri Jan 21, 2005 9:10 am Post subject:
Don't use plexiglass in place of real glass. Plexiglass will break down in sunlight.
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CarlinsDarlin
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Posted: Fri Jan 21, 2005 9:21 am Post subject:
Ludi,
I thought of that - and have heard it before - but do you know how long it takes to dicolor or damage? Just curious. We used to have a dog that got too excited and jumped up on a window and broke the glass out (he was 100+ lbs). Eleven stitches later , we replaced the glass in that window with plexi - didnt want to cut him again if he did the same thing (and he did, about 3 more times).
Kathy
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CarlinsDarlin
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Posted: Sat Jan 22, 2005 8:40 pm Post subject:
Today (in 30 degrees and winds out of the northwest at 25mph ) I played chicken herder. Actually, the wind gusts somehow blew open the main door to my henhouse, and we were out chasing chickens and rounding them back up into the chicken run. I know they would have eventually come home tonight - but there's been a fox running loose around here, and Carlin saw a coyote two days ago. Not to mention the hawks that fly over our place every day.... I didn't want to take any chances.
Since we were outside anyway, we also added some insulating material to the inside of the coop. It helped considerably to block some drafts that were going through in a couple places. Hopefully the ladies will be warmer and produce some more eggs .
Finally, we also salvaged 16 windows to use in the construction of my greenhouse. All will be on the south side of the building. I'm hoping there's enough windows to do the entire side in glass, rather than having to use plastic sheeting (which was going to be the only other option right now). We'll see how it goes.
Tomorrow's goals are to make some headway in the greenhouse construction, pick up everything the wind blew around today (a considerable amount - including my entire bin of aluminum cans that I save for recycling), and turn under the entire garden spot in preparation for the spring. It'll be turned at least once more before we really begin preparing for planting. I plan to try some biointensive methods this year, so turning it over, and loosening the dirt a bit will help me with preparing beds. I figure I have about 8 good weeks left before I'll start being able to put out early spring veggies - so I have a lot to do with both the garden and greenhouse. I hope to be able to start seeds in the greenhouse by the end of Februrary. Wish me luck .
Kathy
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kpeavey
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Location: North Central Florida
Posted: Sat Jan 22, 2005 10:00 pm Post subject:
Kathy: As concerning those aluminum cans that blew around...
I save my cans for use in the greenhouse. Cut the bottom off, you end up with a tube. If you fill the tube with soil, you have the makings for a seed propagation cell. Add a seed or two, add water. The open bottom allows for drainage, although this may mean too much drainage that you have to water it again in a couple of days. At any rate, for the cost of nothing, you have a plant a few inches tall wich will easily transplant without disturbing the roots, you can space the plants jusdt right, and give the thing a head start come the warm season..
Simply dig a hole the size of the can, put the can in the hole, then tap the side while you lift out the can, leaving the plant ready to grow into a hearty vegetable...
... or something like that.
It may take a little trial and error, but you may find these cans to be useful tools, and the price is right. reduce, REUSE, recyle.
I have several of these cans in operation right now growing dill, tomato, avacado, an apple tree ( if 3" high qualifies as a tree), green peppers, what have you. They will last for severl years. You can bleach them if you wish to sterilize them between plantings. They are bug and fireproof, rot resistant and quite durable. I also use some scrap PVC pipe in the same manner
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CarlinsDarlin
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Posted: Sun Jan 23, 2005 9:48 am Post subject:
kpeavey,
Thanks for the idea. I may do that with some of the cans, just to see how it works. It sounds like a very workable idea. I save them generally for the local humane society - they cash in the cans and use them to support the shelter. But I certainly try to re-use as many things as I can - hence the 16 salvaged windows in the construction of the greenhouse.
My grandmother had a running greenhouse when she was alive - and I'm always scrounging things from there too. There are probably more pots (both small and large) in there than I will ever use, but when I get the greenhouse up and running, I'll be bringing a lot of them home. There are both plastic and terra cotta pots to use, so I think I'll have plenty.
Right now I'm getting antsy about getting started on the garden. Not much I can do today, though, without the greenhouse ready. It's about 20 degrees outside - and I'm just not willing to go out in that to work - YET. A few more cups of coffee and I might tackle a couple projects.
Kathy
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Pops
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Posted: Sun Jan 23, 2005 11:22 am Post subject:
On the greenhouse covering, I was actually referring to twin wall polycarbonate sheets not Plexiglas per say. It transmits light well, is impact resistant (think BIG hail) and has a dead air space built in so has some insulation value. Here is a comparison chart:
http://www.igcusa.com/Technical/coverings.html
I was thinking of using the twin wall stuff on the inside to insulate the 4' or so of "greenhouse" from the rest of the shed while allowing some light and heat to pass through. After messing around for hours yesterday trying to get my menagerie of rotten sash arranged I've decided to go with the polycarb on the outside instead of glass, I've wasted enough time on it already. The sash will be stored away for some other use in the future such as germination trays inside the greenhouse. I'm going with double poly "film" on the inside. "Visquene" was all I used in CA but the weather isn't quite the same here in the "Alley"!
You can also buy UV resistant, drip proof, and infrared reflective films as well, I'll have to get my greenhouse catalog out to provide a link but I'm sure you can google one.
On the topic of pots - I had probably hundreds of pots of every description before we moved - I was the green-thumb guy that everyone brought their old plastic pots to. I left them all in various stages of decay in CA and am trying soil blocks this year > Scroll to the bottom of this page <
I bought the little one for quick warming of tomatoes etc and will improvise something for planting up to larger blocks - if it works well I'll get the BIG 'UN! This seems a great way to go if it works - NO consumables aside from soil mixture - unless you are selling seedlings.
I'm thinking of building benches from conduit and fence panels - any thoughts?
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uNkNowN ElEmEnt
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Posted: Sun Jan 23, 2005 11:52 am Post subject:
The tin idea is an interesting one. There is a new can opener out there that cuts off the top at the fold on the rim. This leaves you with an edge that won't cut you.
I don't want to spend 175.00 (american yet) for a soil block maker. I want to make a form. theres not bottom just sides. It will be made of treated wood and the slats of wood that setarate the blocks into smaller pieces will be modular. you will be able to take them apart. I expect it will cost me nothing since I already have lots of wood around here. I will try and make a drawing of it to post here soon.
CD, for a green house, I've been playing with the idea of building as many of the walls as I can out of straw bales to keep the warmth in. I think you only need the south facing slanted roof (at a 45degree angle) to be glass. that lets the heat in but the straw bale keeps it in.
I am wondering what others would think of this idea. I have to have something that would be built to withstand cold temperatures. and straw bale would be warmer than cob or all glass walls. if anyone is interested I might try to make a picture of that and post it too.
finally. for insulating the windows of the greenhouse at night I was wondering waht peopel thought of making a form of straw about 4"-5: thick. its straw covered bysomething (not sure yet, to keep the heat in while the temp outside sinks. any thoughts from others?
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kpeavey
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Location: North Central Florida
Posted: Sun Jan 23, 2005 12:32 pm Post subject:
Every freestanding greenhouse I see has the clear covering over the north side. There is no sunlight coming in from the north side. A solid north wall makes sense. Straw bales will give you R2 for each inch, hence a 24" bale will offer R48, real nice.
For heating the greenhouse: I have 500' of 3/4" PEP hose (lawn irrigation hose, 100' is about $10) coiled on my driveway, about 8 feet across, a small circulation pump sitting in a 32 gallon trash can full of water inside the greenhouse, and a timer to run the pump. I just got the timer in place this week, and it is working as planned. Sun hits the hose, heats water as it flows through, circulates through the trash can, trash can heats up. I've had the trash can up to 95 degrees. At night, as the greenhouse cools, the heat in the trash can acts as a buffer, giving off its stored heat. It has never been below 50 degrees inside the greenhouse, even with a hard freeze outside. The 8 watt pump costs me about a dime a month to operate.
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spear
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Posted: Sun Jan 23, 2005 1:42 pm Post subject:
Youll need some wire mesh if you want that stucko to stay on upside down.And you´ll have to anchor it.
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kpeavey
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Location: North Central Florida
Posted: Sun Jan 23, 2005 7:38 pm Post subject:
Your greenhouse2 makes more sense to me.
The greatest need for heat will be during the coldest part of winter. If the slope of the roof was set at your lattitude+15 degrees, you would get maximum solar gain when you need it most. I'm at 30 degrees north, so a 45 degree slope on the roof makes the most effective solar collector design.
Straw bales have the added advantage that they can be removed easily during the warm season to allow air flow, keeping the plants from getting to hot. If the straw bales begin to deteriorate, they can always be composted.
Old straw bales are cheaper than new straw bales, as they are not desireable for feeding the livestock. Last years straw bales can be had for a buck a bale if not for free.
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smallpoxgirl
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Posted: Sun Jan 23, 2005 9:30 pm Post subject:
kpeavey wrote:
Old straw bales are cheaper than new straw bales, as they are not desireable for feeding the livestock. Last years straw bales can be had for a buck a bale if not for free.
I thought animals had to be fed hay not straw? Are there some that eat straw?
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kpeavey
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Location: North Central Florida
Posted: Sun Jan 23, 2005 9:42 pm Post subject:
I am incorrect.
from: Strawbale Sourcebook
Quote:
DEFINITION:
Straw bale construction uses baled straw from wheat, oats, barley, rye, rice and others in walls covered by stucco. Straw bale are traditionally a waste product which farmers do not till under the soil, but do sell as animal bedding or landscape supply due to their durable nature. In many areas of the country, it is also burned, causing severe air quality problems. It is important to recognize that straw is the dry plant material or stalk left in the field after a plant has matured, been harvested for seed, and is no longer alive. Hay bales are made from short species of livestock feed grass that is green/alive and are not suitable for this application. Hay is also typically twice the price of straw.
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Ludi
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Posted: Mon Jan 24, 2005 9:40 am Post subject:
Quote:
I thought animals had to be fed hay not straw? Are there some that eat straw?
Though they prefer fresh grass or hay, ruminants (not horses) can be fed straw as long as they have some source of protein.
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CarlinsDarlin
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Posted: Tue Jan 25, 2005 7:07 pm Post subject:
Today I finished about 3/4 of the framing on the greenhouse. It's not going to be as big as I would have liked, but the up-side is that I have yet to buy any materials for the construction. All of the lumber was already on hand, left over from previous projects, or scrounged. I'll have my neice tomorrow, so I probably won't finish the framing then, but Thursday looks promising!
K
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uNkNowN ElEmEnt
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Posted: Wed Jan 26, 2005 1:30 pm Post subject:
I've totally amended those plans because they don't do enough with the angle of the sun.
I've sunk the greenhouse 2 into the ground by two-three feet, with insulation and changed front window to two windows. the bigest and lower one with a slope of 64 degrees and a top one for thermally heating the backdrop for winter heat.
I am thinking about using the windows to collect rain water that will srip down onto the bale outcropping and send it around into the greenhouse back wall which will heat it and or be used to water the greenhouse. Now I just have to figure out how to do this without power.
I think this one might actually make it to the blue print stage.
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kpeavey
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Location: North Central Florida
Posted: Wed Jan 26, 2005 6:55 pm Post subject:
UE: stucco will probably stick to the underside of a sloped roof. You could take the extra step of attaching some construction fabric or wire mesh over the area first.
LIME STUCCO FORMULAS:
SCRATCH/BASE COAT
1/2 bag ---- White Portland Cement*
2 1/2 bags ---- Type-S Lime
90 shovels ---- Masonary Sand
Large Handful ---- "Chopped Strand" Fiberglass Fiber
FINISH COAT
one shovel ---- White Portland Cement*
2 bags ---- Type-S Lime
65 shovels ---- Masonary Sand
16 cups ---- Ferrous Sulfate Powder (water soluable) as coloring**
*A small amount of Portland Cement was added to increase drying/curing time. Lime plaster takes a minimum of two to three weeks to cure otherwise. Since we were under time constraints and had to shoot the walls within a two day weekend, adding approximately 20%cement (one to five ratio of cement to lime) produced sufficient drying/curing that the second finish coat could be applied within 24 hours. Only a small amount of cement was added to the final coat. Adding more than 20% cement is not recommended as it significantly decreases the breathability of the stucco which is so crucial for straw bale walls.
White cement was used since coloring added later to the finished walls will take and cover better than over the grey of the more common form of Portland cement.
http://www.eere.energy.gov/EE/strawhous ... straw.html
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kpeavey
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Posted: Wed Jan 26, 2005 7:05 pm Post subject:
As far as the blueprints for the grenhouse:
I've got some designs, drew them up, measured stuff, checked prices, the whole deal. When I realized I was spending more time planning the greenhouse than actually getting around to it, I grabbed what materials ihad on hand and slapped one together.
I built a 8'x8'x8' cube out of some studs lying about, took the door off the tiny bedroom, covered the whole thing with visqueen. It took a day to build, cost me about 30 bucks because my staple gun and hammer were at my brother's house.
Regardless of the cost and time involved, since I got it done on Thanksgiving day I have learned for more than can be read about operating a greenhouse online.
One particularly interestig feature is the rain. When the door opens and closes, condensation from the loose plastic drops on everything inside. The plan to keep a clipboard with notes and records goes out the door due to the humidity curling up the paper and the moisture making everything illegible.
I've found there are severl types of clear poly covering, some will last, it is said, up to 4 years. Talking with people in the area I have learned it is not so much the type of material that gives the plastic a lifetime, it is the construction. The flapping of the cheap plastic is what rips it to shreds. A good tight cover will last for severl season, even with the cheap stuff.
I use a solar heated tankto heat the place. Being nice and comfy during the cold of winter, fire ants have moved in. I keep a bag of fire ant killer in there now.
I still have plans for the next greenhouse, but this one gives me practical hands on experience, which wil be invaluable when I build the next one.
Get on with it.
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CarlinsDarlin
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Posted: Wed Jan 26, 2005 8:05 pm Post subject:
kpeavey,
I understand completely. I've planned and thought about a greenhouse for what seems like two years now - though seriously thinking about it since March last year. Finally I just said to heck with it, and started building. Mine is a little more than a cube - I'll have a section on the south side built at an angle (about half the south side) - but I'm using recycled lumber in the construction, and have put most of it together in just about a day and a half. I hope to finish the framing tomorrow, and then start with the plastic and glass. Then the fun begins - actually learning what I can grow and how to grow it . I'm looking forward to it.
Kathy
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Pops
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Posted: Thu Jan 27, 2005 8:34 am Post subject:
I wound up using polyethylene on the outside of the greenhouse. I did buy the 4 year, UV resistant stuff from the greenhouse supplier:
http://www.hummert.com/catalog.asp?C=65&SC=24&P=8452
If it lasts 4 years $100 bought enough for 20 years. The good panels weren't available locally and would have cost almost $400 to be shipped.
I used old lath boards to install the poly in 2 layers - the 1/4" between the layers is "dead air" and gives a surprising amount of insulation. The layers must be kept apart as the air space, not the poly is the insulator, the big guys use blowers where there is a big span between supports.
To separate the "greenhouse" from the rest of the building I built a wall of 2 x 2's and 1/2" foil faced rigid foam panels - I used 8 at $10 each. Having the walls without solar gain insulated makes a huge difference - I'll never do the all-clear again.
Today is benches, germination flats, power for soil heaters and rolling in 2 - 55gal drums for thermal mass.
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CarlinsDarlin
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Posted: Sat Jan 29, 2005 7:19 am Post subject:
Got a greenhouse question. I've been researching this morning (since I woke up at 3 am ) about thermal mass/heating my greenhouse. The last several cloudy and cold days have raised a question in my mind. I understand that collecting heat and storing it in barrels (water-filled) will work to heat my greenhouse on nights following sunny days, but what to do about a stretch of several days where it is overcast and/or rainy?
I'm particularly worried about this because I have baby chicks arriving in a couple weeks. Once they outgrow the brooder, I was planning to put them in the greenhouse until they're big enough to join the rest of the chickens. But, winters in Arkansas can be pretty gloomy from time to time. I worry that just such a cloudy stretch will arrive just as I need the greenhouse to stay relatively warm because the babies are in there.
Of course, I could always run power out there and put in a small heater, but I'm trying to avoid that. My greenhouse will be about 8' x 14' - insulated north wall painted white on the inside to reflect heat back into the greenhouse - and onto the water barrels (perhaps I'll insulate the east and west walls too, not sure about that yet). About 2/3 of the south wall sits at a 45 degree angle MOL, with the other 1/3 being the entrance - hence straight up and down. This will, for now, use plexiglass on the outside, with plastic on the inside to act as - sort of - a double glazing. (Remember I'm building this from scraps ) I also plan to build in an air lock on the entrance, to help prevent some loss of heat while entering and leaving the greenhouse.
So, now that you know what I'm working with, I need help deciding how to heat the structure on cloudy days...Any ideas?
Kathy
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Pops
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Posted: Sat Jan 29, 2005 8:35 am Post subject:
You could build a compost bin inside and use lots of manure. Also use a covering on the glazed side at night and really overcast days - or days with freezing rain. I found some of the black/white stuff in the shop and it will work well for our house in the cold as well as summer shade.
That's all I can think of aside from a heater of some type. I did have luck down to about 25 with just a heat lamp in the 14 x 14 greenhouse in CA - at least it kept everything from freezing.
I'm going to copy off some of the greenhouse posts and start a dedicated thread so others can find info easier.
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