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Author Topic: Strengthening polycarbonate greenhouse?  (Read 183 times)

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Pimento

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Strengthening polycarbonate greenhouse?
« on: September 07, 2017, 06:20 »
Yes, I know it's an issue that's been raised before but, being the dubious new owner of a shaky Chinese polycarb greenhouse, I'm racking my brains for the best way to strengthen it for winter. I'm planning to use silicone to fix in the flimsy twin-wall panels, and add extra cross-bracing - lots of it. Problem is, I can't find any suitable material at a reasonable price - each of the side and roof panels are 120 x 75cm, and cheapish metal strip from Wickes etc seems to only come in 1m lengths, so not long enough.

I'm sure you super-resourceful bunch have some bright ideas?

Many thanks in advance!

Pim.
I don't really look like my avatar.


I Love Spuds

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Re: Strengthening polycarbonate greenhouse?
« Reply #1 on: September 07, 2017, 16:18 »
Are you trying to brace the walls/frame or the glazing into the frasmes?

I'd be tempted to use plastic pipe as a brace for the walls as it it's light but strong. Drainpipe perhaps if you need maximum rigidity. You will have to make blocks to seat the pipe in, which will be attached to the frame via wooden blocks or such like.
« Last Edit: September 07, 2017, 16:20 by I Love Spuds »
"Every time I learn something new, it pushes something else out of my head!" Homer J Simpson

Pimento

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Re: Strengthening polycarbonate greenhouse?
« Reply #2 on: September 07, 2017, 16:24 »
Both, Spuds! Pipe sounds like it may be an idea for the walls, thanks!

shedmeister

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Re: Strengthening polycarbonate greenhouse?
« Reply #3 on: September 08, 2017, 11:23 »
Do you have a local steel stock holder . 15 or 20mm flat bar comes in 3m legnths and is not overly expensive
May the fork be with you

I Love Spuds

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Re: Strengthening polycarbonate greenhouse?
« Reply #4 on: September 08, 2017, 15:20 »
Do you have a local steel stock holder . 15 or 20mm flat bar comes in 3m legnths and is not overly expensive

Steel would need treating to prevent rusting  ;) but is a reasonable price.  :D

You could use Araldite 2 part epoxy resin (glue) for securing the panes and also attaching pipes to frame (rather that wooden blocks etc). Once cured it is very strong, just make sure you support things in place until that happens!  :D

Pimento

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Re: Strengthening polycarbonate greenhouse?
« Reply #5 on: September 08, 2017, 19:45 »
Have now resorted to fixing battens the length and width of the greenhouse, and along the eaves also... Will be glueing them to the panes, and glueing the panes into the frames (I have some epoxy resin, thank you!  :D)

It looks ok, and feels much more secure already... But time will tell!



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