Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
which greenhouse? Help very much appreciated.
In article ,
Martin Brown wrote: On 26/04/2013 22:36, Janet wrote: I agree. I don't see those poorly supported polycarbonate panels standing up to coastal weather , either. Ventilation seems to be an optional extra - which is a nonsense. Seems like these are greenhouses specifically designed for non-gardeners. Why buy steel (which rusts) when all the other manufacturers use aluminium, which doesn't. You could at least in pricinple have a much stronger large steel structure for the same price as aluminium. And steel is less likely to cripple under extreme wind loading. I would recommend replacing some of the struts on the prevailing wind side with thicker material. Plus the fact that aluminium corrodes much faster than steel when it does, and one of the things that it handles very badly is salt. The reason that most aluminium structures survive is that they are exposed to air, and aluminium develops a protective oxide layer. It will corrode very fast if there is any location/joint/etc. where water can get in but which is enclosed enough to be effectively anaerobic, especially if the (whatever) is held together with steel bolts or screws. Regards, Nick Maclaren. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|