A tile roof’s cap tiles are installed and held in place by a few different techniques. After general installation mortar cement is used to “point-up” the tile sides and enclose the gaps. This cement is either dyed using oxide during installation or painted using a concrete stain. Over time movement causes the mortar to break loose from the cap tiles. Since mortar does not self-heal it continues to separate. If mortar is the only attachment method the cap tiles are help by gravity alone once the bond is fully broken. Here cap tiles separated from the mortar and are loose. In a storm these would easily blow off and could cause damage to the roof, building and/or surrounding buildings.
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