i’d also think about putting some string up between the roof struts – i found that water tended to puddle between the struts and water can be dreadfully heavy – last summer i was always running out to the greenhouse to push the water up out of the puddle between the struts, until i came up with the string idea (then it sorted it).

your two main dangers with this greenhouse is wind ripping away the polythene, and wind making something fly into it (a sharp stick will go through very easily in high winds). Not much you can do about the latter, but the former: i actually dug a trench and sited mine inside the trench, and put wood around the edges, so that the wind didn’t have as much opportunity to sweep under the edges. I’ve already said about the guy lines – if you can use anything heavy to weigh down the metal struts (I used a pallet) then so much the better.

Oh, and it can get very very hot in there. I was recording temps, even in last summer’s miserable washout of close to 40*C with the door closed if i didn’t get out there first thing to open the door. One weekend i had to go away and leave the whole thing zipped up, and it was the hottest weekend of the year. Got back and just about everything was dead. Buy a thermometer if you don’t have one, and make sure you can get there every day to open it..

good luck with it!

keth
xx

p.s. i’m all jealous about what you’re taking home.. I’m not taking anything yet!! it looks gorgeous..