There's a lot of chat and only one picture of a ptiched not flat roof but will give some idea.
diy-extra.co.uk. or pop in to your local library and look up the DIY books. or email me I have sent someone on this forum a couple of weeks ago instructions which I still have you have to sunday to request them after that I'll be away working. robertwhiting76athotmail.com change the at to normal email symbol
bob, April 2010