Ridge Tiles are rounded or angular tiles that straddle the apex of a roof. The Ridge Tile overlaps the roof covering on ether side of the roof.
On older properties of traditional construction, Ridge Tiles are fixed to the clay or slate tiles with a bed of mortar (sand cement)
Over time this mortar can degrade and the mortar will need to be replaced or if the condition is more severe, the Ridge Tiles will need to be removed and replaced or re-layed.
Leaving Ridge Tiles in a poor state can move into bigger problems later and should be attended to if picked up in a Home Buyers Survey.