We are building our extension with an external skin of reclaimed stone (sandstone/gritstone).
Cavity wall will comprise of:
Internal Skin: 100mm blockwork,
Cavity: 100mm insulation filled cavity,
External Skin: Stonework.
What is the minimum thickness the stonework needs to be? I'm wanting to go for around 130-140mm (around 5 inch). Architect says anything above 4 inch is fine, but just want to make sure.
Is 5"/130mm thick enough to meet Building Regs in structural terms?
Cavity wall will comprise of:
Internal Skin: 100mm blockwork,
Cavity: 100mm insulation filled cavity,
External Skin: Stonework.
What is the minimum thickness the stonework needs to be? I'm wanting to go for around 130-140mm (around 5 inch). Architect says anything above 4 inch is fine, but just want to make sure.
Is 5"/130mm thick enough to meet Building Regs in structural terms?