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The Nightmare Begins

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#21
manders

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View PostGareth Davies, on 20 April 2012 - 09:29 AM, said:

I guess the worst that could happen to your greenhouse is that they could land you with a huge fine, ask you to take it down and rebuild it nine inches lower?!

If you dig down far enough it would be frost free, like some of the victorian glasshouses.

#22
Dicon

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Anyone with a clipboard will have to get past

Ffisst !!
:sarcastic_blum:
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Edited by Dicon, 20 April 2012 - 12:25 PM.


#23
Simon Lumb

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Matt Im in the process of having a log cabin/summer house built its 4m x 4m and 2.5m high and the planning laws  are something to think about as are the boundry laws as my neighbour 'kindly' pointed out.  My project is not for plants but maybe one day something will find a way its way in there even it its only a few incubators with lights for seedlings,  but I darent even mention this to the reichfuhrer or I'm a dead man.


S

#24
Dicon

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I am all within the rules apart from the 9inches
Only thing is if I cut that off I'll never pacify the missus  :woot:

Edited by Dicon, 24 July 2012 - 23:11 PM.


#25
Dicon

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All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy
All work and no play makes jack a dull boy


Ok time for an update,
What a shocking couple of months of weather we have had!

I have spent week after week sanding down, and preparing the timber sections, treating and priming ready for erection.
Smaller sections were worked on under the lean-to and in the garage.
Larger sections have had to wait for dry days, which have been very scarce!
So too jobs like treating the prepared timbers and laying them out to dry, I just don’t have enough space under cover and every day has been wet or promising rain, a real headache!

Every job seems so endless, it is very hard to keep the enthusiasm going, for example, each roof spar whilst only 12ft long, has 6 flat faces to be sanded (as they are tapered in section) each has 2 rebates with a rubber seal to remove,  clean (scrape, sand, scrape again) and replace.  x by 38 and that amounts to 2600ft of timber to pass my little orbital sander alone! Plus nearly 900ft of EDPM seal to replace.

This job really feels like the “Forth Bridge”, ‘though without the bonus of being able to throw myself from it when totally fed up!!

I have tried to get fairly advanced with the refurb before decanting the plants to their temporary home and taking down the old greenhouse.

Temporary enclosure ready to take the highlanders and a few lowlanders
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Plants moved in
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Orchids in the conservatory.
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Old electrics and water filtration system
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Old GH takedown
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Demolished and skipped the old blockwork base during a massive thunderstorm, the only job that wasn’t hindered by the rain! The wife even had a go with the sledgehammer  (likes destroying things) but when it comes to the laborious stuff like sanding and painting, ”you’re on your own mate”

Called in the brickie to do a 5 day job, and then it pissed down for 7 out of the next 11 days!, the yard flooded and the rain just kept coming. Fortunately the house has never been in danger, but it is still worrying and so I put the pump into the soakaway sump and pumped away 7000L/hr for 2 whole days…………what a crap summer!

I bought almost enough bricks from a neighbour, they are a tumbled and sand-faced brick and look like old reclaimed bricks but are hard and to class B spec, I made up the shortfall with class B’s for the first course and quoined corners.  I have used a 100mm thermal block for the inner leaf with a 50mm insulated cavity.
I also built in a cool passage within the cavity that will draw fresh air in through air bricks, along the cool, damp passage and into the Highland section, this should aid summer cooling by 1 or 2 deg C. I have also set a raised insulated slab under the Lowland section and a duct to feed the gas heater.

Finally the brickwork was done
Progress has been much slower than I had anticipated, mostly due to the weather, however, the poor weather has also provided a milder climate for the plants whilst in their temporary homes, so I am not so unhappy, I guess the storm clouds have had a silver lining.

Finally I decided to replace the rusty old steel brackets (invent some missing ones) and strainers with stainless steel plate and wire cables with turnbuckle strainers. Making up the cables is fairly simple but hard on the hands.

The whole job has needed a lot of planning and investigation to ensure all components are there to complete the build, it has been like a giant 4D jigsaw with no picture.

Few shots of progress
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#26
Defalotus

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Looks good. Cant wait to see the finished greenhouse. Looks like it will be a special one. Thanks for sharing pics!

#27
manders

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Its very impressive Matt, dont envy you the effort you must be putting in but i'm sure the end results will be fantastic.

#28
Dicon

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Good progress today, just hope the weather holds off for a few days

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#29
Defalotus

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Thats going to look great! Nice job!

#30
Gareth Davies

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Now, that's an awesome greenhouse... a bit like mine, but bigger and better in every way.
Very impressive, and I know from experience how much work goes into one of these greenhouses, and how this summer has been a particularly demoralising time to be trying to work on a project like this.  I'm just thinking how happy we're going to be on cold winter days in our hothouses...

#31
Dicon

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Got the easy bits of polycarb on in a couple of days, just the rooflights to make up and fit, I have had to invent new flashings to make them stormproof, the openers are about 7ft x 4ft each x4.
I arranged for a mate to come and help me fit them one afternoon and thought it would take about an hour or so to make up each unit prior to fitting so started on the first of 4 at about 8am.................how wrong was I
Finished the first one at 15:30 Ok it was a very steep learning curve and the others went a bit quicker and by 23:30 I had all but finished the last one !
By now it was also clear that me and one mate were never going to fit these alone, so called in some extra help and five of us fitted them in an hour and change, and yes they fitted....Phew!

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One of the major problems has been the transition from a design built around 4mm glass to upgrading to 25mm polycarb. Every adjustment moves the problem on so you have to try and cover every forward base before you get there and it makes progress frustratingly slow.
A change at the ridge moves a problem to the gutterline. A change of glazing thickness above a pivot changes a turning moment and this in turn affects a flashing and makes it impossible to fix a standard hinge, etc, etc.

Anyhow, I did my best to design a suitable ridge cap and under flashing, in powder-coated aluminium, to allow the redesigned (though yet to be made) roof vents to function properly, and I have to say I am relieved that it all appears to have gone to plan.

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Next step is to divide up the interior......seems like a bit of a shame really as it is a fantastic space.

#32
pyro_hyde

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That is flipping amazing well done

#33
Alexis

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I think that transcends a greenhouse and would be described as a glasshouse!

#34
Ian Salter

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View PostAlexis, on 15 September 2012 - 11:20 AM, said:

I think that transcends a greenhouse and would be described as a glasshouse!

I would have just stuck with house. it's about the same ground area of our little home.
Brilliant work Dicon.

#35
dyzio

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How is your progress now?

#36
Dicon

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Hi All,

It’s been a busy time devising and erecting the partitions.

There are 2 internal partitions giving a 6ft x 16ft cold section, a 8.5ft x 16ft lowland section and a 13.5ft x 16ft highland section

I have used 25mm multiwall polycarb again with pressure treated timber framing at low level and aluminium F section to perimeters, this makes a good neat finish and allows for thermal expansion.

I have used a kind of curtain wall glazing principal that sandwiches the glazing between 2 sections of timber with an EDPM gasket. Again this allows for movement and simple individual sections of timber can be easily removed/replaced if needed without dismantling the whole framework.

I had a couple of big double glazing units left over from my sunroom project (supplier error) they are argon filled thermal units so I decided to make use of these, they help make the two sections (highland and lowland) feel bigger as they are clear and improve internal light levels. Posted Image



I picked up a free uPVC door and frame from my local replacement windows firm, they just skip them so give them away. I have glazed this with polycarb too.

I had to box off the roof lights in the lowland section as they are so large, they straddle the partition between the lowland and cold (3rd) section. This was a bit complicated, but I have ended up with an isolated opener to both sections. I realised that these openers were too far off the ground to be opened easily so I decided to automate these with chain actuators………….these cost a bomb so I kept an eye on eBay for a couple of weeks and decided that if I could not get some cheap, that I would have to buy at least 2 new. Best new price was about £100 each so I set my price and lost out on about 3 auctions! I then spotted a listing that did not show up in the usual search description and picked up a job lot of 7 yes seven for about £125 Get in! So I now have automation for all the openers that can be linked to digital thermostats for accurate venting.

Having been at it for months now, I decided to take a break for a couple of weeks

Here

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I hurriedly set-up the lowland section so that the neighbour could water things for me. This all needs sorting out properly with more shelving, and a large hotbed on the floor for the big bicals etc. and the auto watering will follow when I have time.

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This is my water filtration system set up again. The big tank holds about 55gals and all fits neatly under the central 8 x 4ft bench. I will likely set a storage tank up in the lowland section too so that the sprinklers use warmer water to prevent shock. I have previously heated the pump feeder tank, but this is another cost I wish to avoid.

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Edited by Dicon, 20 September 2012 - 00:02 AM.


#37
dyzio

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Wow! Super awesome! It must have cost a fortune. I am dreaming about GH like that :)