Breather membranes: can you have too many layers?

[Crofter]

Due to the way the rolls worked out I have a decent bit of breather membrane leftover.

Is there anything to stop me from doubling up in the more exposed areas?

The SW corner has suffered some damage in recent high winds and it would be much simpler to just overlay a big patch rather than remove the damaged bit,

I'm also thinking I could use the much tougher roof membrane for the patch, it's breathable of course, but has much higher nail tear resistance.

[Temp]

 

Pretty sure that will be fine.

[Rattyjohn]

Yeah that's fine, the breather is overlapped on our build in numerous places where the joints between the individual panels are situated.