Magply / Econic sheathing and warranties…..

[G and J]

So….  I’m now looking at the sheathing material for the frame of our stick build.

 

Much of our walling is less than a metre from our boundary so we need to design in fire resistance.  I don’t think I can use cement board as it isn’t breathable and I don’t want a wet, sticky, suffocated frame.  So far I’ve come across Magply and Econic General Purpose Sheathing.  Both appear to have the physical attributes needed, (racking, breathability, etc.).

 

Are there any others that might be worth considering?

 

Has anyone reading this (or anyone you know) recently used such and got a warranty?  I’m told that historically there has been issues where warranty companies dislike these materials - we do want a warranty and frankly I’d see it as a red flag and investigate further even if we didn’t.  I will also approach the manufacturers but real life examples are far more reliable.  
 

As always, help much appreciated.