Recent content by alibrown18

I didn't manage to get through today. Understand the point on lateral stability. I wonder if BC have taken a commonsense view that because the fence line angles 30 degrees away from our house into their garden, it wouldn't be realistic to expect next door to do a similar project as they'd need...

You're quite right in principle I should trust the experts - just quite hard in practice when half your house is on the line. Especially walking into the rooms each day and imagining it perched on 30cm wall each side... :giggle:

Thanks here's the diaphragm design. No idea if this is better or worse than you describe. I'm just the client here wanting to double check. I'll be getting back to building control and the SE on Monday. I can't see any reference to 3.01 elsewhere in the document so no idea what that number is...

Update that building control have queried the calcs. They want to be assured the different loading for the inner beam (which takes the original roof) is sufficient. SE says that as a diaphragm is being used to connect the beams together they can effectively be treated as one. Maybe fair enough...

This is a superbly helpful reply, George, and just the sort of things I needed to hear or think about. Especially on the foundations and bearing length. On lateral stability, I'd assumed this wouldn't be an issue because we have the remaining 1/3 of the house continuing to the left of the beam...

Thanks I appreciate the reminder there's the BC engineer as a backstop. Our builder is experienced and seems diligent about following plans and checking in with building control, so I'm hoping that won't be the issue. It's more what is outside his control, like the loading on the existing...

Hello there, long time lurker first time poster. But I've found these forums really useful as we embark on our extension project. We're taking out a 5.3m span of external wall (brick and block), bearing the first storey above and roof, and 2.7m internal wall carrying the joists (which run...