Another threshold

[LaChab]

Good Morning,

 

I've  mulled over lots of other threshold details on here, and produced this hybrid.

 

I'd really appreciate any thoughts.............

 

I was wondering about using a threshold drain instead of the slot drain.

https://www.aco.co.uk/products/thresholddrain

https://www.aco.co.uk/products/hexdrain-brickslot

 

We  haven't chosen the indoor floor covering yet, so the temporary slope inside is just a thought in case the BCO insists.

I've allowed 18mm for engineered wood.

 

Are all window / door thresholds roughly the same width? (we haven't chosen windows yet)

 

Thanks for reading.

Threshold detail.pdf

[Russell griffiths]

Can you tell us why you want a floating timber floor. 
is this a new build house or just a garden room or something. 

[LaChab]

It's a new build.

 

With the insulation over the slab it seems the best method.

We did the same in our current house that we built about 15 years ago and it's been fine.

At the time seemed too simple to be correct!

[Russdl]

Why not lower the threshold so that you don’t need the interior ramp?

[LaChab]

As we haven't yet decided on the final floor material inside, I've left a (bit arbitary) 18mm ready for it. Then when it's fitted we'll have a fairly level threshold.

[Conor]

You don't need EPS on the outside, it won't support the drain anyway. 

 

Your dpc doesn't make much sense. You want it to go right up the back of the door block and lap over the dpm.

 

Put a 50mm screed floor down with UFH. Anything else is inferior.

Edited November 22 by Conor

[LaChab]

Sorry, should have made it clearer that it's an ICF build, so the two layers of eps are necessary.

Tending towards a low profile channel instead of a slot drain, as it will involve removing less eps from the outer leaf.

I wanted the drain right next to the threshold, so I can't see how else to fit it.

Perhaps I could put a layer of Compacfoam under it.

 

I understand the benefits of UFH, but not a fan I'm afraid, hence the floating floor etc.

 

Take your point about the dpc. I'll look at that again. I forgot to annotate that the concrete core to the blocks will be waterproofed concrete.