Things that you can do on Sunday: remove wall linings, to inspect wall cavity

[ato2]

Here we go: did this in second bedroom, as I intend to retrofit insulation in the exterior wall cavities.

House was built in 1935. All rimu...lovely wood

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[Suezy]

Putting in batts will certainly be worthwhile - keeping it warmer and the draughts out.

[ato2]

But I have a problem. The house doesn't have building paper. So If I put batts up against the back of the cladding and any moisture ever got in the batts will get wet.
I am going to try polystyrene aginst the back of the boards and use batts between the polystyrene and the back of the new gib wall linings.
This should still allow air movement over the back of the exterior cladding.

[ato2]

Now I have that wall stripped back, I can deal with it...

[TokWW]

Aha!  I've seen that before!!!  LOL!  We did our Master bedroom two years ago, had to add a whole lot more nogs to suit the jib and the 10ft stud, horizontal sheets.  I added some more elec cables and outlets and TV coax before we added the batts and building paper though (other order of course...)

[ato2]

At the moment, the roof space and the wall space are thermally linked, because there is a gap of one board, where the sufeit is. Cold air flowing down the walls inside.....brrrr

[ato2]

Ah, yes, time consuming! My approach is from inside, removing the wall linings.
So I have begun...did some minor sealing as there was a tiny gap between top bevel back board and surfeit.
Then put air celled pvc thing( was a land agent's sign) on the bottom plate, between the studs: I figured if any moisture ever got there it won't directly touch the base of the insulation.
Now I have put the first expol panel in...

[ato2]

And this is the first panel:

[ato2]

And now I am nearly there, after some fancy cuts....

[ato2]

 
Progress: lots of white polystyrene panels....