A device for securing a roof tile crown or cap to a roof ridge or roof hip is described. The roof tile crown support can be easily and quickly secured to an existing roofing structure. The device contains a main body defined by a plurality of opposing side walls, a top wall, and a pair of leg plate support structures, attached or integrally formed to each of the opposing side walls. Within the interior region of the roof tile crown support, a support structure is secured therein. To aid in shipping, a plurality of like-shaped roof tile crown support units can be adapted to nest within other like shaped roof tile crown supports.