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#1
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Algea growth in the gab inside polycarbonate for greenhouse
Hi all.
On the homepage http://www.onlinegreenhouses.co.uk/navigation.htm they mention that a the gap inside generally tends to encourage algae growth. |
#2
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"Hanne Bech-Jensen" wrote in message ... Hi all. On the homepage http://www.onlinegreenhouses.co.uk/navigation.htm I am so sorry... you can tell that I am obviously quite new to this. BTW how do you delete a message like this that went astray... from the entire newsgroup, I mean? Anyway... I was going to ask if it was true as they state on their website above that you get algea growth in the gab inside polycarbonate glassing for greenhouses. Anyone have any experience on that. Thanks in advance and sorry for the mistake... ;-) Hanne, Denmark |
#3
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"Hanne Bech-Jensen" wrote in message ... "Hanne Bech-Jensen" wrote in message ... Hi all. On the homepage http://www.onlinegreenhouses.co.uk/navigation.htm I am so sorry... you can tell that I am obviously quite new to this. BTW how do you delete a message like this that went astray... from the entire newsgroup, I mean? Anyway... I was going to ask if it was true as they state on their website above that you get algea growth in the gab inside polycarbonate glassing for greenhouses. Anyone have any experience on that. Thanks in advance and sorry for the mistake... ;-) Yes, you do indeed. I found that the only way of preventing it is to block the open ends during a dry spell, to prevent water from getting in. Franz |
#4
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Hanne Bech-Jensen wrote:
"Hanne Bech-Jensen" wrote in message ... On the homepage http://www.onlinegreenhouses.co.uk/navigation.htm I am so sorry... you can tell that I am obviously quite new to this. BTW how do you delete a message like this that went astray... from the entire newsgroup, I mean? Anyway... I was going to ask if it was true as they state on their website above that you get algea growth in the gab inside polycarbonate glassing for greenhouses. Anyone have any experience on that. It is true after a fashion, but only if the inside of the twin wall polycarbonate ever gets wet. You normally buy tape to put over the open ends that lets it breathe and keeps dead flies, dirt and dust from getting in. And the structure should be designed to support it. They are also right that twin wall is polycarbonate is flexible so you have to be careful about fixing it to a conventional greenhouse. Glass clips will not work it will spring out. On the plus side for polycarbonate - it diffuses the light in the greenhouse so plants scorch is less likely to occur. It is practically indestrutible and so even in a glass greenhouse useful for opening lights that may get snatched by the wind. And if you intend to heat the greenhouse the thermal insulation of the twinwall gap makes a big difference to your heating bill. I intend to build my new greenhouse from 1cm thick twinwall polycarbonate. I have a couple of pieces of twinwall that have been seriously abused for about a decade. There are dead spiders and allsorts of junk in the gaps but hardly any algal growth. The risk is largely theoretical unless you build a really badly designed greenhouse. It is the same technology as is used for home conservatory roofs. Regards, Martin Brown |
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