david86 Posted March 6 Share Posted March 6 I recently moved into my new house and I am renovating throughout. I have a section of cavity wall that protrudes out into my kitchen, perpendicular to the main external cavity wall. After looking under the floorboards above, I've found half of it is supporting joists, but the other half just has plasterboard on top. Under building regulations is there any reason I can't remove half of the protruding cavity wall and patch brickwork into the main cavity wall where a hole will appear? Before After Photos Link to comment Share on other sites More sharing options...
DevilDamo Posted March 6 Share Posted March 6 If the part you’re removing is not load bearing, then crack on. If in doubt, ask (a structural engineer). 1 Link to comment Share on other sites More sharing options...
ProDave Posted March 6 Share Posted March 6 Devil's advocate here, but it is only the first 2 or at most 3 joists that get intermediate support from that small wall. The rest of that room the joists span all the way with no intermediate support. I am willing to bet you could take that little wall down completely and all would be fine, but best to get a SE just to make sure there is not something silly like a joint in a joist on top of that wall. Link to comment Share on other sites More sharing options...
joe90 Posted March 6 Share Posted March 6 20 minutes ago, ProDave said: I am willing to bet you could take that little wall down completely and all would be fine, It looks like that wall was built to create a lobby so yes probably not needed structurally. Link to comment Share on other sites More sharing options...
david86 Posted March 7 Author Share Posted March 7 Thanks for the info, very helpful. It does only support a couple of joists, but they run up to where the staircase is (there's a cupboard, with door, under the stairs too), so I think the supporting bit is still necessary? I should have added a slightly wider picture! Like this: Link to comment Share on other sites More sharing options...
joe90 Posted March 7 Share Posted March 7 21 minutes ago, david86 said: so I think the supporting bit is still necessary? I don’t think so if the joists are not joined above the wall and the same dimentions as the others. I still think it’s a small lobby for that outside door. 1 Link to comment Share on other sites More sharing options...
Iceverge Posted March 7 Share Posted March 7 Off the wall idea here. Put some UFH loops or heating wire in the cavity and backfill with concrete. It'd be a mega storage heater. Link to comment Share on other sites More sharing options...
david86 Posted March 7 Author Share Posted March 7 1 hour ago, joe90 said: I don’t think so if the joists are not joined above the wall and the same dimentions as the others. I still think it’s a small lobby for that outside door. Ah, that makes sense. I'll do some more investigations. 1 hour ago, Iceverge said: Off the wall idea here. Put some UFH loops or heating wire in the cavity and backfill with concrete. It'd be a mega storage heater. It wouldn't solve the "taking up space" problem, but like the ingenuity! Link to comment Share on other sites More sharing options...
joe90 Posted March 7 Share Posted March 7 (edited) If you remove both brick skins you will need to bridge the cavity that existed in the wall (if this diagram is correct) but I doubt the cavity is in the internal wall. Edited March 7 by joe90 Link to comment Share on other sites More sharing options...
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