Cladding and wainscoting of cold internal walls

chris_n

If you don't fill that gap you will get damp because you will be leaving a cold spot. You course a DPM like Free Bear says if you are concerned.

plumb1_2

chris_n said:

If you don't fill that gap you will get damp because you will be leaving a cold spot. You course a DPM like Free Bear says if you are concerned.

I disagree even with a dpc and the slab insulation touching the floor any leak/damp can travel up by capillary action. A 20mm cop spot at the bottom is nothing to worry about. Plus it would be covered by a skirting 

gutovicky

Sorry plumb1_2, what is a "cop spot" ?

gutovicky

Hello all,
Leaving the line at the junction of floor and insulated wall to one-side for now......

Could anyone reassure me that by internally-insulating a rendered wall, or part of a rendered wall, I would NOT be creating cold bridges THROUGH THE BODY OF THE RENDER ITSELF - ie where the non-insulated render surfaces carry on behind the insulated surface & vapour barrier..??..

This may be a completely silly question....
Thanks for your time, Vicky 

FreeBear

gutovicky said:

Sorry plumb1_2, what is a "cop spot" ?

There was an L that escaped and an errant P made an appearance methinks.

It should read Cold Spot.

chris_n

gutovicky said:

Hello all,
Leaving the line at the junction of floor and insulated wall to one-side for now......

Could anyone reassure me that by internally-insulating a rendered wall, or part of a rendered wall, I would NOT be creating cold bridges THROUGH THE BODY OF THE RENDER ITSELF - ie where the non-insulated render surfaces carry on behind the insulated surface & vapour barrier..??..

This may be a completely silly question....
Thanks for your time, Vicky 

You will create something of a cold spot through thermal bridging if an interior wall abuts an exterior wall, how much of a problem this is likely to be only you can decide. I have seen people put half a 50mm board (600mm wide) on the internal wall and create a small step in the wall to get round this. I guess it depends what the wall is made of, if it's a stud wall it won't be much of a bridge, it it is a brick wall it's going to bridge a bit more.

plumb1_2

FreeBear said:

gutovicky said:

Sorry plumb1_2, what is a "cop spot" ?

There was an L that escaped and an errant P made an appearance methinks.

It should read Cold Spot.

Correct, I must learn to proffy ready my post 😊