Retro-reflectivity is a promising surface capability. which has attracted the interest of researchers for building applications in order to counteract Urban Heat Island (UHI) effects. This work aims at studying the impact of the substrate material on the optic performance of retro-reflective (RR) coatings. Three types of substrate materials were investigated: smooth pine wood panels. https://cosmeticssquadets.shop/product-category/skin-cream/