[IanYORK]

Glad to help...not sure about the sealant, but I agree that the brown stuff will be more resistant to UV and UV-visible damage.  Good luck with it.

[Tohmahtae]

Where did you get your self adhesive draft excluder Kristen?

Have dismantled today, seals are in remarkably good conditon so may not be necessary to replace. I am now looking into various ways of siting the greenhouse, as it's only 6x8 I am assuming that I can dig a level trench, fill with pea gravel and site it in this with some slabs through the middle - will this be solid enough do you think?? I would like to leave borders to sow salad crops in.

Unfortunately I now have to wait for the broad beans and garlic to crop before i can put it up! 

[Kristen]

Where did you get your self adhesive draft excluder Kristen?

eBay My greenhouses are 40'x10' and 12'x10' so I needed quite a bit ...

I put a brick 2-course based down for mine, raised it up a bit, and I sunk the borders to give more soil-to-eaves height for crops like Tomatoes.

[Tohmahtae]

I actually had a look on your blog for an hour or so last night Kristen, vey interesting - you have done a great deal of work!

Having researched foundations last night, i've decided to go with a simple trench and a slabbed floor on top of the base. Most of the things I will be growing are in pots anyway so I don't really see the need for soil borders.

On a side note I am a bit surprised to see some of the extensive foundations people put down for a simple 6x8 greenhouse, concrete and breeze blocks seems a bit excessive to me - more suited to your larger GH's kristen.