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Joist and subfloor replacement

Joined
23 Oct 2011
Messages
29
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4
Location
Surrey
Country
United Kingdom
Hello everyone,

I'm looking for guidance on when repairing a ground floor subfloor becomes notifiable to Building Control. I've tried searching the Building Control website and the forums on here, but am a little confused at what constitutes notifiable "renovation of a thermal element" versus a simple repair.

I'd be looking at taking up somewhere between 25%-50% of the floor in one of the rooms downstairs to replace some rotten joists and put a new subfloor back in its place. I'd probably also aim to stick some noggins and insulation between the joists whilst I have the floor up, but otherwise it will be a straightforward like-for-like swap.

Would this be a notifiable to Building Control, or would it just be classed as a repair?

Any help would be much appreciated.
Thanks


Background:
We have an oldish 1950's house with suspended floors throughout. The previous owners decided to build the patio at the back of the house flush with the internal floors, which caused all manner of damp problems in the corner of the room.
This was all addressed a few years ago by digging the outside area down to the correct height, and making sure the outside drainage was clear and working, which has made the damp problem go away.

However, the interior floor was always bouncy and creaky near the patio doors where the damp problems were at their worst, and we've finally taken the carpet up and had a look underneath. There have been various cuts and hatches made in the floor over the years, so I can have a good look under the house at the damage, and it looks like after years of damp issues, there are quite a few joists that are really rotten on one side where they rest on the inner wall of the house.

Access is quite good and the joists are just slotted in holes in the inner wall of the house, so it should be quite an easy DIY job.
 
It’s a repair job, consider adding insulation when you carry out the work.
 
I dobt many of us would bother to notify BC, but throwing some insulation in is a good idea
 
OP,
No need for BCO.
Why not post pics of the floor and the joists?
A pic showing the outside of the wall in question at ground level would also help?
 

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