Recent content by stevie888

12.5mm per metre is 1in 80 which is the normal minimum fall. In practice we generally use 1in 60 as that allows for some small deflection in the roof structure without creating a backfall. The issue with yours is the presence of a batten along the edge which shouldn't be there. Not good but you...

That's all pretty gentle Tony: you should see some of the garbage the one of my 2 local LA SEs used to send back from time to time, Got so bad that I actually raised an informal complaint about him on a couple of separate occasions BUT he (and your guy) have at least gone through the calcs in...

Just for interest I ran these numbers through my Superbeam program and for this loading it suggests a 533x210x122kg/m UB giving a 12.6mm max deflection. The beam quoted here FAILS IN BENDING!!! I'm not sure why exactly there is a difference in this instance. For one, we don't know what code...

Most of my work over the years has been for 2 LAs. Both had their own in house SEs, One moved on about 4 years ago (not sure if he's been replaced), the other has just retired. All submitted calculations were always rigorously cheched. I had a similar kind of situation to yours on one of my...

It rather looks like a concrete structural floor with a service void created by random timbers under the floor boards.

We often pour concrete underwater. The thing to avoid is concrete falling through water or flowing water over the surface. We usually either drop the concrete through a "tremi" pipe or direct from a concrete pump and keep the end of the pipe under the concrete surface. There is negligable...

Yoiu're within 2m of the boundary so it won't be PD to put a second storey. You're looking like > half the original width so it won't be PD. I still think it's worth going for LDC. Opinions do differ between planners (though they shouldn'r I suppose). I had the boss man really vexed with 1...

Damp won't matter at all. Scrape off any clay that has softened.. BC will doubtless have a view though.

It's certainly grey. I believe the original intention of the SI (2010 ish?) that changed PD was refering to the original main roof but many planning peeps over the years have raised spurious arguments to thwart attempts to do loft conversions as they don't like the idea. Funnily enough I had...

I agree with all this. You have a design that has been properly done and presumably checked by BC? The cleanest way forward is to instruct another builder to work to those drawings. You'll need to sack no 1 properly.

8x2 for floor is common, but it's usually possible to use more shallower timbers if headroom is critical. 8x2 for the roof seems excessive though: I can't recall ever going this big in >20years of loft design. One dodge I often used to gain an odd inch was to size the joist as normal but then...

A picture of the actual thing would be helpful but by the sound of things you don't if you just infill the gap over the door with lighttweight cladding.

That's the shurt version?

Most things are possible if you have deep enough pockets. Should certainly be possible to replace what is probably a masonry pier with a steel column to support what appears to be a beam supporting something above. Said beam may not then be long enough so may need repacing. We can't be...

Spare us that!! I stil use 449 for steel.