membrane for external walls - Tyvek suitable?

[Tom]

Hi all, looking at buying the membrane to cover our nudura walls. These walls will be battened, then the membrane put on, then batten over the top, so there will be an air space behind the membrane. I've been looking at the Tyvek Housewrap but this says it "Should be surface applied, fixed directly to sheathing ply /OSB, insulation or blockwork". Is it OK to use stapled to battens, or should I be looking for something else?

Thanks all

[Mr Punter]

Why not membrane tight to the walls, then batten?

[Tom]

It's what the I was advised to do by my local Nudura distributor

[Mr Punter]

What is the purpose of the proposed membrane?  Is it a Nudura standard detail?

[ToughButterCup]

Ours is fixed to the wall.. . It's good, not Rat Proof, but good all the same.

[FM2015]

What purpose is this membrane meant to be performing on the exterior of ICF exactly?

[SteamyTea]

15 hours ago, FM2015 said:

What purpose is this membrane meant to be performing on the exterior of ICF exactly?

Got me confused.

Maybe it is not as great as they claim.

They do a weather proof paint as well.

https://www.nudura.com/products/tremco-nudura-products/

[BotusBuild]

I have to do this, then put a metal mesh, then a scratch coat before I can fit stone slips (think big tiles).

I need to think about this too. Might ask the stone slip Co.

[FM2015]

On 22/08/2023 at 21:13, BotusBuild said:

I have to do this, then put a metal mesh, then a scratch coat before I can fit stone slips (think big tiles).

I need to think about this too. Might ask the stone slip Co.

On nudura or a different ICF?

Labc and nhbc have thrown some interesting curveballs for non-nudura installs.

[BotusBuild]

18 hours ago, FM2015 said:

On nudura or a different ICF?

Nudura