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Is there any issue with the cavity/board insulation getting wet in partially built walls? (Currently having an extension built and there’s been a lot of rain this weekend)

What’s the issue with walls getting wet? Once the roof is on won’t they dry quite rapidly?

In our recent conversion (1930s semi), only the new loft bedrooms had fire doors. Nothing else was changed except interlinked alarms in every room.

Isn’t the alternative to have an alarm in every room? 2 floor house plus loft conversion - Our only fire doors are the loft bedrooms. Was signed off in November last year.

We dug trial holes on each elevation ,they are 750mm deep and 200 to 350mm from the face of the exterior wall. BC said they would normally be looking at 800 in these conditions for a new build extension, but we’re satisfied with what was there.

Thats a very good point!

Yes My thoughts were that BC approval is approval, job done, but the builder who is quoting for the job raised the issue. I can see his point. He didn’t put the foundations in the ground so he can’t be responsible for any issues. Same goes for getting an SE report I suppose. They won’t be able...

thanks. Yes that is exactly what I am thinking. The footings and slab have been there for 20+ years with no apparent issues, so (as a total layman) I would say the risk is low. The weigh of a single storey extension (flat roof, glass windows) versus a conservatory (glass roof, cavity...

WTF what? I know that. That’s why I’m posting “how should we approach liability”

Do you mean in the event of a structural issue, or prior to building the extension?

You mean you think there is unlikely to be a problem with the foundation… or that it’s unlikely that anyone will want to take responsibility? :cautious:

BC have approved re-use of our existing conservatory foundations to rebuild a new single storey extension. How should we approach liability if the foundations were to fracture or there was some other structural issue with the extension? Many thanks.

Hi , we are reusing the existing foundations and (uninsulated) slab from our conservatory for a new extension. Removing the existing tiles and screed gives us 8cm to the desired final floor level. Architect has specified “50mm kingspan kooltherm k103 then Continal ufh of either TileFix-18 or...

Cheers Woody (y)

Hi, We are replacing a c.2003 rear conservatory in a 1930s semi, with an extension on the same footprint. This is about 0.5m from the boundary with our attached neighbour. The size is 5.1m from back of house x 5.3m wide As a bit of investigation has shown that the foundations are 75cm deep...

Seems sensible. So we would need an inspection by bc before a decision is made to reuse or replace for the new extension? These foundations seem a lot more robust than the joking footings on the conservatory in our previous place.

sorry to hijack, but would the foundations have to have been inspected by BC at the time the conny was built? the previous owners to our place said ‘proper’ foundations were put in, but there’s no bc documentation. Having dug a hole, the concrete is 75cm to 25cm below ground level and the walls...

If your skirting is white and it isn’t a big gap, I would just caulk the whole perimeter. Will stop drafts and unlikely to be noticeable.

I would like to put some shelves in a new loft conversion bedroom. See picture below, I have sketched the sort of thing I’m after in the right hand alcove, and the lower sketches show a couple of potential ways I came up with to do this. Could anyone please help with how to put these together...

Upgrade the radiators, stop droughts & be less stingy with the heating. I’ve done that in my last 2 Victorian houses successfully. Much cheaper and less destructive than installing new ceilings.