Hello folks,
Firstly let me say thank you for the many posts on DIYnot which have been enormously helpful during my project. Whilst I've been doing fairly chunky DIY projects for years, this is my first proper bit of building and I think it's gone pretty well so far. Long story short; the original decking which came with the house unexpectedly collapsed with the window cleaner on it, I promptly demolished it, dug it out, hardcore/sand/dpc, 250mm slab with 3 sheets of mesh, then slowly built it up in brick over the last few months. It's not perfect, but it's a lot more perfect than some of the house (Britannia)!!
There's a little door which will provide access for garden tool storage etc, the top will be edge-to-edge slate tiles (continued from the kitchen), and eventually it will have a glass room on top of it.
The question I'm currently mulling over however is how best to do the joists. I've looked at a few options and was favouring 3x block columns along the inside of the long walls, RSJs end-to-end supported by the blocks, then joists front-to-back, 2x18mm marine ply, seal and tile, then seal again.
However, given the small-ish span, the low expected load/traffic etc, is this overkill? The other option is putting in standard hangers with M12 rawl bolts, but I seem to remember reading an article which frowned upon mounting hangers in that manner right at the top of the wall.
Any thoughts or ideas on the best way to proceed? Cheers.
Firstly let me say thank you for the many posts on DIYnot which have been enormously helpful during my project. Whilst I've been doing fairly chunky DIY projects for years, this is my first proper bit of building and I think it's gone pretty well so far. Long story short; the original decking which came with the house unexpectedly collapsed with the window cleaner on it, I promptly demolished it, dug it out, hardcore/sand/dpc, 250mm slab with 3 sheets of mesh, then slowly built it up in brick over the last few months. It's not perfect, but it's a lot more perfect than some of the house (Britannia)!!
There's a little door which will provide access for garden tool storage etc, the top will be edge-to-edge slate tiles (continued from the kitchen), and eventually it will have a glass room on top of it.
The question I'm currently mulling over however is how best to do the joists. I've looked at a few options and was favouring 3x block columns along the inside of the long walls, RSJs end-to-end supported by the blocks, then joists front-to-back, 2x18mm marine ply, seal and tile, then seal again.
However, given the small-ish span, the low expected load/traffic etc, is this overkill? The other option is putting in standard hangers with M12 rawl bolts, but I seem to remember reading an article which frowned upon mounting hangers in that manner right at the top of the wall.
Any thoughts or ideas on the best way to proceed? Cheers.