Never again !!! 
Brought a "tomato house" in the spring, you know the sort, easy to put up, with a plastic cover with two large zips to do it up with, Its nice and big , fits up to three tomato plants in it and me!
The draw back on the design of it is the fact that it has a flat "roof" which was ok when we had those few days of summer
,but now that it is raining non stop it has shown up the flaw of the design. The rain collects on top of the grow house and the "roof" dips with the weight of the water causing the grow house to rip !
I know I thought, I will pop outside un zip the zip and push the "roof" upwards with my hands. I did with my hand inside the growhouse and the rest of me outside BIG mistake. I was soaked
. But not to be out done I came up with plan B ,every few hours I now climb into the growhouse its good I am a short arse and while I am inside I am able to push the "roof" back up and shake off the rain water.
I have been doing this for most of the day so not in the best of moods at the moment ! If anyone should see a tomato house next time they are in a garden centre , leave it there, do not buy, that is unless you are short and you have nothing better to do with yourself on a rainy day 