A roof coating is a monolithic, fully adhered, fluid applied roofing membrane. There are many different types of roof coatings with various purposes, formulated with various chemistries. The primary purposes of roof coatings are: resaturation of old roofs to extend the service life of the roof, reflectivity to create a “cool roof”, and toughness to provide a wearing surface on the roof that can resist abrasion from foot traffic or other physical damage, such as from hail. Primary materials used in roof coating formulation include acrylics, elastomeric, asphaltic, and silicones. Application may be using a spray rig or rolling the coating onto the roof.