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What made you go for a full upstand with internal drain rather than gutter?
Do you know where you're getting your bifolds from?
I installed mine at the weekend. Goddamn that was a ballache. Got the frame perfectly laser aligned, fitted the sashes and had no end of difficulty getting the bastard traffic door to close properly without catching. Ended up tightening/loosening screws to pull the frame back and forth until it kinda just happened. No science to it at all!
Trunkie-
What made you go for a full upstand with internal drain rather than gutter?
At some point (likely next year at this rate), I'll be putting a growing roof up there, which means 60ish mm deep of stuff (geo-textile, reservoir sheet, sub- and soil) - Having an upstand means it won't all just fall off at the edges.
I'm not looking forward to fitting the doors (from slideandfold.co.uk) as in addition, I'll need to drill through 5mm steel to fit them.
NotThamesWater
Cheers!
I did. They are a bit bollocks at making sure that everything is included in the delivery.
First, they forgot half of the corner patches, then they forgot the penny roller, then they forgot another patch.
And their estimates of glue needed are way off.
In the end, it was cheaper to get a few tins off ebay, although I'm pretty sure that bog standard Evostick contact adhesive would have been fine for the edges.
A word on the patches - They bond immediately, and a faff to keep flat.
I also didn't price in the need for mechanical bonding strips at the edges, which I need because I have upstands the entire perimeter. Worth the £200, though, as I don't want the roof to turn into a trampolines when it pulls away from the uprights.