I'm trying to work out best option for external render onto an ICF woodcrete block (Isotex). Architect has recommended K Rend but their tech suppot does not seem to have experience of the woodcrete type ICF block and their recommended build up is based on a Polystyrene type ICF build.   Has anybody used K Rend or similar on a woodcrete type ICF block?  What basecoat/topcoat would work best?

HP12 Base 

Fibre mesh 

Then any K topcoat 

Alternatively 

LW1 6 mil then mesh Leave for three hours 

The 10 mil of LE1 

Scape following morning 

 

If you need Something in writing 

Speak to Warren or Chris 

Or Kathia Vallester in the K rend office 

 

Edited January 7, 20224 yr by nod

Isotex recommend Silicone render, I have a spec sheet from them, if you message me your email address I’ll send it to you