joining greenhouses

[Jolly Nantes]

Hi all,
Anyone ever join two aluminium greenhouses together along the length. I have two 8 x 6 greenhouses and want to create a 8 x 12 . Its the forming of a water tight valley that's bugging me.
I'm thinking either a piece of guttering bolted to the frames under the existing aluminium gutters and maybe some flashband to form the valley, or a length of angled aluminium bolted under the roof frame so the roof glass sits over the aluminium valley.
Any thoughts or ideas would be great to help me achieve this.
Cheers

[veggiechicken]

Hi Jolly Nantes and welcome. I've joined 3 frames together but, since they weren't glazed I didn't worry about making the water tight. http://www.growfruitandveg.co.uk/gra...ml#post1278498

Do you want to have the door at one end, or a door at both ends, or have the 2 doors facing each other with a "porch" between so that you could turn either right or left, into a GH.?

[veggiechicken]

Just read your post again! Do you mean you want to join them side by side? I'm puzzled why you'd need to make the side joins watertight?
Could use the valley as a water catchment, with guttering between them that fed into a water butt?

[Bigmallly]

Welcome to the vine JN.............Try Silicon Sealant & plenty of nuts & bolts.

[Snadger]

I've joined a high lean to shaped greenhouse to an eight by six in an 'L' shape

Unless you are a dwarf, how are you going to get from one greenhouse to the other?

I just used whatever perspex I had to hand and siliconed the gaps.Still leeks like mad when it rains though!

To make them accessible you would need to join the two ridges together crossways so that you had an 'H' shape and triangulate the bits in between.Not an easy job, and with a loss of growing space!

[Jay-ell]

Hi all,
Anyone ever join two aluminium greenhouses together along the length. I have two 8 x 6 greenhouses and want to create a 8 x 12 . Its the forming of a water tight valley that's bugging me.
I'm thinking either a piece of guttering bolted to the frames under the existing aluminium gutters and maybe some flashband to form the valley, or a length of angled aluminium bolted under the roof frame so the roof glass sits over the aluminium valley.
Any thoughts or ideas would be great to help me achieve this.
Cheers

Are the door in the 8' or the 6' sides? I know that most 8x6 greenhouses would have them in th 6' Side but I'm sure I've seen some that have them in th 8' side. If it's in th 8' Side then I can see where the confusion would come in. Otherwise I can't see the point unless the eaves are high enough to walk under (or you happen to be a limbo champion)

[Jolly Nantes]

i should of said , the greenhouse is already sat on two courses of blocks so the eaves are not much lower than 6 foot.
I have only the space for a second greenhouse next to the one i already have, on the 8 foot side and thought life would be easier if i joined the two together.

[Bigmallly]

I think life would be much easier if you put them side by side but treat them independently.

[MyWifesBrassicas]

Hi Jolly Nantes and welcome. I've joined 3 frames together but, since they weren't glazed I didn't worry about making the water tight. http://www.growfruitandveg.co.uk/gra...ml#post1278498

Do you want to have the door at one end, or a door at both ends, or have the 2 doors facing each other with a "porch" between so that you could turn either right or left, into a GH.?

I have acquired 3 10ftx8ft greenhouses, all different makes and slightly differing shapes, pitches etc and i'm thinking of joining them up, at least the two similar shaped ones.
I'm not thinking of creating a perfect join between the two, but more of an end to end approach, doors facing each other with a porch bit in the middle, Its the porch bit I'm thinking of at the moment.
Has anyone looked at this since this thread?
Anybody done it?
I tried to look at the images in the earlier thread but can't seem to get them to load

[ESBkevin]

Oops necro bump of an old thread.

I agree with BM, having two enclosed spaces gives you the ability to keep different environments at different times. So one could be shaded and humid, the other bright and drier. You could nominally heat one for early seed starting and the other be shut up as a dry store over winter. You could confine disease to one (if you observe bio cleansing moving from one to the other). You could plant direct into the ground in one using the full growing height and have paving slabs/gravel and staging in the other. I'm sure you could think of more. I think flexibilty is the key, just have then both save into a big water butt or two.

[nickdub]

I've bodged all sort of stuff together over the years - secondhand, new built, wood, glass ,stone etc - as long as the foundations in are adequate to the weight, and level then the rest is more a matter of commonsense and taking your time (+ a second pair of hands if its a big bit) - wood and aluminum are easiest, because you cut drill and bend them with home tools - glass is a p.i.a. to work with - I have shattered double-glazed units trying to re-use them - my preference is triple wall poly-carbonate instead of glass, but it is dear - another see-through option is clear corrugated roofing sheets, which you can mix with the same profile bitumen sheets say, if you are in a windy spot and meed to get extra strength on an edge - these sheets bend easily across their width, so an arched roof is easy - try google for inspiration.

Finally the last critical point is "do you need a roof that doesn't let in the rain?" - if you do then joining two structures needs some thought - my advice would be, if you are unsure about roofs, is to ask around and find someone local who has done building work professionally explain the problem to them and listen to their advice - if you offer them £20 and a free lunch they might even give you a hand for an hour on a Sunday say.

happy to answer questions if you want some one to bounce thoughts off - pm me and I'll drop you my phone number

[MyWifesBrassicas]

Great advice, thank you very much.

[veggiechicken]

I tried to look at the images in the earlier thread but can't seem to get them to load

Images prior to 2016 are no longer available. You should have seen an "invalid attachment" message.

Is your "porch bit" just for shelter between the 2 doorways?
How about a T shape with 3 doors opening onto one space.

[MyWifesBrassicas]

Images prior to 2016 are no longer available. You should have seen an "invalid attachment" message.

Is your "porch bit" just for shelter between the 2 doorways?
How about a T shape with 3 doors opening onto one space.

It did show an invalid attachment message.
I think the porch area could be a bridging gap between the two greenhouses in close proximity, say 5-6 ft or so and I can attach a few polycarbonate sheets over the top and back.
Alternatively, I could utilise the third green house for a T-shaped somehow or just make the porch T-piece and have each greenhouse on either side ??

[nickdub]

Great advice, thank you very much.

you're very welcome - experience is hard thing to gain on your own, but a pleasure to share with others.