How many times can you fall through the gaps in #construction? To insulate the exterior of a property (EWI) is by far the most energy efficient approach to keeping a leaky house warm in winter, cool in summer.
https://www.youtube.com/watch?v=3UcA-9gVAUw
Rockwool slabs are an excellent breathable insulator that also has high fire retardant and sound proofing values. Breathable lime based render is by far the most healthy and eco friendly coating for exterior and interior walls in a house. Painted with limewash.... Combine those materials and you won't have condensation, mould or draught issues
So how come it is so hard to find an EWI system that allows for all those materials to work together! The recommended adhesives and basecoats are not breathable, nor eco friendly. Expanded Polysytrene and similar isocyanate products are literally flammable hell on earth...