Timber frame insulation over breather membrane..

[hotnuts21]

HI,

We have just had our timber frame kit erected after a very very long and stressful wait.  Although this is only the start of the project really.  The kit turned up on a lorry and has been erected. it is literally just the kit with 140mm stud, 10mm osb and a black breather membrane on the outside. See photos. I have A LOT of questions about timber frames but thats for another thread.

My original plan was to insulate the panels with sheepswool/thermafleece, and then across the inside of the walls with a batten and more wool. On the outside its batten and counter batten on top of the breather and then vertical timber cladding.

But I wonderred if there is a product that I could potentially put on the outside of the breather membrane too, maybe a wood fibre board like pavtex so I could eliminate all cold spots/bridges and protect the inside from the hot southerly sun.  Maybe sometihng that I could place either between the battens, or instead of the battens and then fix the counter battens above the insulation.  

Ive heard of insulation on the outside, but from the research I have done this is always against the OSB and then the breather membrane on the outside. I dont really want to risk taking off/damaging whats there.

Hope that makes sense. 

Paul

[Gone West]

15 hours ago, hotnuts21 said:

But I wonderred if there is a product that I could potentially put on the outside of the breather membrane too

I had 15mm OSB3 racking on the outside of my TF covered with membrane. I then had 50mm thick Rockwool RW6 slabs fitted between 100mm battens which left a 50mm gap which was covered with another membrane and then the timber cladding.

[hotnuts21]

Thanks Gone west, thats good to know. I hadnt considered a flexible product, I will have a look into that.