markc

Hi and welcome. Finding plots is/can be a long and tiresome process. For what it’s worth I have been looking for around 5 years and still not found anything suitable - although I am looking for something particular and will continue to look until I drop on it. But there are those who drop on something pretty quickly.

A UB (universal Beam) has a thin web (vertical) and thicker top and bottom flanges making it stiffer when vertically loaded. As mentioned above, adding a bottom plate to Box section will greatly improve its resistance to deflection because you are increasing the bottom flange

As John said, plus RHS isn’t the best section to minimise deflection as the “flanges” are only 8mm top and bottom agains the added self weight of 16mm of web (2x8mm sides. yes a RHS looks better but it would really need a pre camber before install.

Hi and welcome, yes there are some good traddies but there are even more cowboys (no woke politically correct crap from me). everybody has to start somewhere and learn as they go on.

In this instance I would say GL (a) as this is the highest point adjacent to your new structure

I don’t think there is much, if any good info. Even our suppliers give sketchy answers.

Regardless of degradation, 0.8kWh battery would require just under 1kWh of input to charge it and you could expect maybe 0.7/0.75 kWh back out of it. Battery round trip efficiency is generally around 80-85%

Good morning any welcome, loads of info, tips and tricks on here in past threads, but if you can’t find the answer - ask away.

Has the hinge moved or is it the plastic frame that has gone out of square? Is the hinge side still vertical/parallel to the frame? If so then you don’t adjust the hinges, you “push” the frame back into square by packing the glazing unit.

Hi, do you have any pics of the structure, loads of ways of adding bracing to prevent racking of a table. If one edge of the roof is fixed to a wall you can add diagonal braces in the roof - timber, metal or tensioned wires to hold the other edge rigid at the top. Side braces or if you are wanting to keep the structure clutter free then you are looking at holding it be the joints between posts and top members. Loads of options and no real right or wrong.

Pulling a post into square before fixings will help it to stay put, but without bracing a “table” structure will sway and pulling one leg into plumb generally results is it pulling another leg half way so the stresses balance.

Obviously no slope/fall to drain the surface, a level area will always puddle to some extent. Your only real option here (apart from taking up and starting again with a fall) is to drill one or more drainage holes in the area of the puddle.

@PCurtis for a quick fix you could use a tanking/liquid membrane - Aquaseal or similar, goes on like thick paint and cures to a flexible rubber like layer. You can apply to damp surfaces (cellar walls etc. but much better if it’s dry - heat gun or hair dryer work well).

If that’s the boards we can see then it’s not grp, even laid over wet boards grp would be a hard rigid layer that is pretty bomb proof - think of a fibreglass boat or kit car. I reckon you have some sort of fabric with a paint or resinous coating. As above, it really needs sorting or it is likely to peel off.

Hi and welcome, looks like an interesting project