Could I get your thoughts? Two years ago, a contractor completed phase 1 of my renovation, creating a passage to an annex. This resulted with a 7cm step down. I now plan to raise the floor level but noticed efflorescence on the concrete at the patio doors.
Can I use a Bituthene layer to close...
I looked on the planning portal and that extension was registered in 2011... The exterior has air bricks which indicates a beam and block floor; so I'd say there would be insulation in that case? The UFH guy did ask me all this before he committed to quoting for an in-screed system. He seemed...
Afternoon @^woody^ . I've gone back through my photos again and yes you're right to question the slab.
I found a photo of that window area just after they were removed and the extension foundations were being dug.
I've pieced together a better diagram of what think it is and labelled a few...
Morning - The replies are really appreciated.
This morning I took a photo of the outside wall. The DPC is on top of the ground level of brick. I've attached a diagram of how I think it's been constructed.
From the advice I'm hearing about using engineering bricks - is the diagram on the right...
hi! Firstly, thank u for taking the time to respond.
There’s no visible moisture under that DPC. However I would say that wood CLS is damp feeling. I don’t know if there’s a cavity between it and the outer skin.
From the photos I have I think the old white sliding doors were sitting directly...
Had some building work done last year include new French doors. Have been saving up some more £££ to finish the room.
This winter I’ve noticed a patch of efflorescence. It didn’t happen last year. Seems a bit odd. Are there any immediate actions I should take?
The second photo is under that...