Allotment Gardening Advice Help Chat

Welcome => New Across The Site => Topic started by: John on April 30, 2019, 12:43

Title: New Greenhouse Destroyed in Storm Hannah
Post by: John on April 30, 2019, 12:43
On Friday night Storm Hannah arrived here in Wales after battering Ireland. I was confident my new greenhouse would be OK but it wasn't to be.

Disaster Strikes New Greenhouse (https://www.allotment-garden.org/garden-diary/6341/disaster-strikes-new-greenhouse/)
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: lettice on April 30, 2019, 15:41
Oh dear, that is sad.
You didnt by any chance leave the door open or the door was a tad loose.
That happened to someone I know, they had an 8 foot aluminium greenhouse for many years and many strong storms.
But one day they left the door open facing the path of the wind and it collapsed the greenhouse much the same way while they were watching it.
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Lardman on April 30, 2019, 16:51
That's such a shame  :mad: I have some choice Anglo Saxon phrases you can borrow to scream at it if you want.  Can you get something planted or constructed to defuse the wind around the area.
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: sunshineband on April 30, 2019, 17:03
I did wonder how you fared up/over there John. I bet you were hopping, but at least no-one was hurt. I don't expect that makes you feel any better about its collapse though
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Pescador on April 30, 2019, 17:54
And I was pretty miffed bout loosing some of my autumn sown broad beans!
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on April 30, 2019, 20:40
You didnt by any chance leave the door open or the door was a tad loose.
One of the brilliant things about the new greenhouse was the door being lockable. On the Vitavia greenhouse I use woodworking spring clamps to keep the doors from opening and fettled some brackets to prevent them blowing out of the track.
That's such a shame  :mad: I have some choice Anglo Saxon phrases you can borrow to scream at it if you want.  Can you get something planted or constructed to defuse the wind around the area.
The wind hit from an unusual direction - normally it would have been somewhat sheltered by the house and attached cow shed. I might put in a base nearer to the cow shed and shelter the front (seaward) side with trellis above the existing low wall.
I did wonder how you fared up/over there John. I bet you were hopping, but at least no-one was hurt. I don't expect that makes you feel any better about its collapse though
I'll be honest, I was gutted. I just sat in the office for 3 hours hoping I'd wake up! For two pins I'd have cried! I really like where we are but it's got its downsides.
And I was pretty miffed bout loosing some of my autumn sown broad beans!
Our first year the sweetcorn was blown out of the ground!
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: snowdrops on April 30, 2019, 21:51
Really sorry to read this John, it might be worth you looking at Rhino greenhouses I suggested them to you when the other one blew down, they make a point of recommending them for windy places. Perhaps if you emailed etc with photos of both the ruined houses & your forum etc you never know they migh5 see it as a challenge & offer some promo discount for a bit of advertising.
As Sunny says at least no one was hurt, little consolation I know☹️
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on May 01, 2019, 00:03
Worth a try - but Rhino ain't cheap! I did wonder about a polytunnel - they're very tough and less money.
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: snowdrops on May 01, 2019, 07:45
No I agree they’re not cheap , but they may work out cheaper in the long run if it stays up in your extreme conditions & they do advertise that they do.
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Lardman on May 01, 2019, 19:58
I'd also be asking local window firms for quotes on a free standing "conservatory" ;)
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on May 01, 2019, 20:45
I'd also be asking local window firms for quotes on a free standing "conservatory" ;)
One of the show growers had one he built for growing his leeks and onions. Underfloor heating, no less!
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Growster... on May 02, 2019, 06:24
That's rotten bad fortune John!

If you can bear yet another suggestion, what about making a surround from tile batten, with roughly 6" 'holes', like a lattice fence. When a bad forecast arrives, a few sheets of good grade polythene secured to this could well divert the main pressure.

All at a cost I'm afraid, but with no detriment to the plants inside...
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on May 02, 2019, 11:57
If you can bear yet another suggestion, what about making a surround from tile batten, with roughly 6" 'holes', like a lattice fence. When a bad forecast arrives, a few sheets of good grade polythene secured to this could well divert the main pressure.
I'm coming to the idea of putting a base in running parallel to the cow shed which would shield the long side. On the seaward side which has a low stone wall, putting heavy duty trellis up. This leaves one long side exposed but I can't recall getting winds from that direction or from the rear.
Some sitting down with paper and pencil is called for to see how it looks on a plan.
Light levels would be reduced but the biggest problems cultivating in a greenhouse come from heat and sun  scorch so maybe not a bad thing.
Val pointed out that moving would be a lot more hassle and expense!
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Growster... on May 02, 2019, 18:01
Good idea, John!

I only learned last year that a lot of greenhouse plants like toms, peppers etc, really only want lots of light, and not necesarilly heat, so an upwards structure, maybe with some shading against the scorch you mention, may be the trick!

We shade using debris netting, held on to the aluminium roof bars with clothes pegs, and while you may need a stronger fixing (you will), there should be a 2 West and Elliots solution somewhere...

Don't move though, Val's right as usual!
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: lettice on May 03, 2019, 09:05
Some interesting ideas here.
Wondered if it might be worth erecting a 3-4 foot fence kind of level wit the lower level of glass. Having the posts and fence set about four feet away from the base of the whole greenhouse.
That would reduce the winds strength and send the current over the top of the greenhouse and still allow all the glass area to catch the sun.
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: sunshineband on May 03, 2019, 09:32
OK Just go for another polytunnel. You know you want to  ;)
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on May 03, 2019, 09:36
Some interesting ideas here.
Wondered if it might be worth erecting a 3-4 foot fence kind of level wit the lower level of glass. Having the posts and fence set about four feet away from the base of the whole greenhouse.
That would reduce the winds strength and send the current over the top of the greenhouse and still allow all the glass area to catch the sun.
That should work :) All I need now is a windtunnel and some scale models!

On the financial side, rapidly losing the will to live dealing with Churchill. Still not got an assessor out. Obviously my before and after photos could be fake so they have to send someone out.. eventually. Then they claim he can't make contact with us and we've no answering facility on the phone. Bunkum.
Ends up with me having to phone the assessor firm and then the individual person who can't possibly get here to suit me because his wife is poorly so he's 'kindly' coming on Sunday morning.
That's 9 days of broken glass that can't be cleared presenting a risk to my cats and my grandson has to be watched like a hawk. He's already cut himself picking up bits of it. It's toughened glass so masses of little sharp bits.  >:( >:( >:(

Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: Lardman on May 03, 2019, 17:00
I'm surprised you managed to get it insured to be honest John - I bet your premium is going to get a hammering.

Have you considered a vertical debris netting curtain a distance from the GH which you could raise and lower to defuse the wind.  Add some basic mechanics and an anemometer it could all be automated...
Title: Re: New Greenhouse Destroyed in Storm Hannah
Post by: John on May 03, 2019, 20:21
Have you considered a vertical debris netting curtain a distance from the GH which you could raise and lower to defuse the wind.  Add some basic mechanics and an anemometer it could all be automated...
I had a better idea! Put it on a hydraulic platform and when the wind picks up it sinks into the ground.

Here's a demonstration model (https://youtu.be/E06cNv55jTs) (about 35 seconds in!)