LAUSR

Abstract There has been an increasing need for innovative coating materials with high thermal insulation properties to achieve energy-efficiency on buildings’ facades. This can be accomplished through the incorporation of nanomaterials in new thermal renders’ formulations. However, it is also essential that these coatings systems have multiperformance to fulfil the current standard requirements. The studies already made lack a global performance approach, often focusing only on physical and mechanical performance. Therefore, within the scope of this research, it was possible to obtain a new super-insulating thermal render formulation with the Mediterranean climate zone in perspective, characterising its performance at fresh and hardened states, from the mechanical, physical, chemical, and microstructural points-of-view. With this work, it was possible to preserve the aerogel granules integrity while also presenting a homogeneous distribution within the paste, due to the incorporation of rheological agents. This allowed us to obtain a low thermal conductivity multifunctional render (~ 0.029 W⋅m−1⋅K−1), with potential for industrial development, leading to an increase of the energy-saving abilities of these materials, and broadening their scope of application to both new construction and rehabilitation.