mortgage for timber frame

[mike2016]

Hi,

I've been looking at the self-build costing templates from the main Irish (ROI) Banks and while most offer front loading for timber frame they all, without exception state "*Standard timber framed structure with traditional block exterior". Now with something like an MBC timber frame I'd go for Aquapanel and K-Rend but that's appears to be a non starter. Just wondered if anyone has encountered this before from ROI lenders and if there's any way to avoid changing building methods / concrete-mageddon above the foundation later? I think a lot of UK lenders are more flexible. I've made enquiries to a few banks and am waiting on their response. If only one or two are amenable it also creates a problem selling on the property or switching banks later to get a better % rate. 

Thoughts appreciated.