Must be the rooferI was aware of that, but this lot have an appalling website, and one of 'em looks a bit like a *****
Bed shakes in new loft conversion when windy
- Thread starter james75
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Hope it`s a mutual friend
See you`re in Sussex. Under Wealden Council Build control Also might explain the "traveller"from the roof co. 
The original truss roof timbers are very lightweight and slender. They work by triangulation. This has been taken out by removal of all the internal members.
The beam is a UB, rather than UC, so has little in the way of lateral rigidity. The wind blows on the roof slope, the load transfers down into the stud wall, then the beam and on into the floor as a horizontal load. And it then wobbles a bit, as there's nothing really acting as a diaphragm to resist it.
It won't fall down; it's just spindly construction. Delux's tent analogy is as good a way of explaining what's going on as any.
The beam is a UB, rather than UC, so has little in the way of lateral rigidity. The wind blows on the roof slope, the load transfers down into the stud wall, then the beam and on into the floor as a horizontal load. And it then wobbles a bit, as there's nothing really acting as a diaphragm to resist it.
It won't fall down; it's just spindly construction. Delux's tent analogy is as good a way of explaining what's going on as any.
A
Atilla
no mention of party wall act?
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Que?
A
Atilla
There's no party wall. It's link detached, garage on either side.
Council came back to me and said they had received a notification of work but have no plans, etc because I had used an external company for the building regs.
Going on a post from earlier about me not being able to sell this property as having a 4th bedroom unless I hold some kind of certificate, I guess I now ought to request one from Total Building Control Ltd.
I do wish all this wind would die down for a bit! I keep laying in bed waiting for the external walls to crack!
Council came back to me and said they had received a notification of work but have no plans, etc because I had used an external company for the building regs.
Going on a post from earlier about me not being able to sell this property as having a 4th bedroom unless I hold some kind of certificate, I guess I now ought to request one from Total Building Control Ltd.
I do wish all this wind would die down for a bit! I keep laying in bed waiting for the external walls to crack!
A
Atilla
never said it had, and as the O/P says it wasnt an issue here - however failing to comply with regs is failing to comply and would make you wonder what else was missed - no?
I wouldn't lose sleep over it, they usually just collapse without warning, bringing the upper floors down with them.
Point taken, but by looks of the photos, it all is prolly ok, just that whoever designed it never stopped to think of the effect of lateral forces on the structure.
Roflol
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