Hi there. Just got planning for a new build in our backland plot and have decided to use SIPs. We have vaulted ceilings and would like to minimise wall thickness as it’s a very tight plot, so every mm counts!
I have spoken to a few companies and many offer the usual Kingspan 142 or 172 thickness but the 142 seems to require extra insulation to meet even building regs u values. We have come across other panels that have different thicknesses and claim to have a better u value to thickness rating.
Essentially my question is, does anyone know what the best SIPs panels are for thickness vs u value? We’d like to achieve around 0.15/0.16 for walls and plan to have triple glazing.
I know I may be oversimplifying this, but any guidance appreciated!