Plaster crown molding system for indirect lighting

Abstract

A plaster crown molding tile has an upright body portion providing a front decorative surface and, in opposition thereto, a rear wall-engaging surface. Integral with the body portion, a topper portion extends angularly upwardly. The wall-engaging surface provides spaced apart horizontally oriented planar strips and between the strips plural grooves spaced apart by ribs. Peaks of the ribs define a first selected depth relative to the horizontal strips, and valleys of the grooves define a second selected depth relative to the horizontal strips. These surface features enable the tile to be more easily shaved to a desired depth for custom fitting the tile for improved butt seams.

What is claimed is:  
     
         1 . A plaster crown molding apparatus comprising: an upright body portion providing a front decorative surface and, in opposition thereto, a rear wall-engaging surface; and integral with the body portion, a topper portion extending angularly upwardly therefrom for providing a space for a lighting means, the wall-engaging surface providing spaced apart horizontally oriented planar strips and between the strips plural grooves spaced apart by ribs; peaks of the ribs defining a first selected depth relative to the horizontal strips, and valleys of the grooves defining a second selected depth relative to the horizontal strips, the second selected depth of greater magnitude than the first selected depth.  
     
     
         2 . The apparatus of  claim 1  further comprising a central planar horizontally oriented strip placed at the first selected depth.  
     
     
         3 . An inside corner plaster crown molding system comprising: plural linear tiles placed adjacent to an inside corner of a wall structure and spaced apart; an inside corner tile adapted for engaging the plural linear tiles in a contiguous and unbroken form; wherein each of the tiles provides a front decorative surface and, in opposition thereto, a rear wall-engaging surface; and integral with the body portion, a topper portion extending angularly upwardly therefrom, the wall-engaging surface providing spaced apart horizontally oriented planar strips and between the strips plural grooves spaced apart by ribs; peaks of the ribs defining a first selected depth relative to the horizontal strips, and valleys of the grooves defining a second selected depth relative to the horizontal strips, the second selected depth of greater magnitude than the first selected depth; and an indirect lighting strip laid between the wall and the topper portions of the tiles for directing light upwardly in concealment by the topper portions.  
     
     
         4 . An outside corner plaster crown molding system comprising: plural linear tiles placed adjacent to an outside corner of a wall structure and spaced apart; an outside corner tile adapted for engaging the plural linear tiles in a contiguous and unbroken form; wherein each of the tiles provides a front decorative surface and, in opposition thereto, a rear wall-engaging surface; and integral with the body portion, a topper portion extending angularly upwardly therefrom, the wall-engaging surface providing spaced apart horizontally oriented planar strips and between the strips plural grooves spaced apart by ribs; peaks of the ribs defining a first selected depth relative to the horizontal strips, and valleys of the grooves defining a second selected depth relative to the horizontal strips, the second selected depth of greater magnitude than the first selected depth; and an indirect lighting strip laid between the wall and the topper portions of the tiles for directing light upwardly in concealment by the topper portions.