I have been given a nice, but old 6 x 8 greenhouse with adjustable shelving and plan to put it on my new allotment. Some of the panes of glass are broken and I was considering replacing them (all) with polycarbonate sheeting instead and wondered what the pro's and con's of each type of material were.

Unfortunately as I work for myself, I do not have the time to go the allotment everyday and I have heard that it is very easy to scorch plants in a glass greenhouse if left unattended in the summer?

Can anyone share their experiences with me before I go ahead and inadvertantly kill off all my little lovelys with (heated) kindness! OR waste a lot of money on polycarbonate when it is not recommended / worth it?

Many thanks as always in advance