I HAVE A LOT OF SMALL BROKEN PIECES OF TILE ON MY ROOF, IS THERE A PROBLEM WITH MY ROOF?
The corners of the tile at the interlock are the thinnest portion of the tile and as such are the most susceptible to damage. When properly installed, there is usually no problem with corner breakage. If the tiles are not properly aligned however, there is the potential for point loading that puts irregular pressure onto the corner, causing it to fracture. This most often happens when the tiles are applied to tightly together. Most tiles are designed to be installed with a 1/16 inch shunt or separation between the tile bodies. If this shunt is not maintained, damage from foot traffic or the expansion and contraction of the roof deck could result. Debris left in the channel during application could also result in point loading that may break the corners under foot traffic.