Over time, the cement mortar that seals and secures ridge capping on a tiled roof can deteriorate, leading to cracks. As these cracks widen, they allow water to penetrate beneath the ridge tiles, which is one of the most common causes of leaks in tile roofing.

To effectively repair these cracks, all loose material, moss, and any existing silicone must first be thoroughly cleaned and removed. It is essential to inspect for any broken tiles beneath the ridge capping before proceeding, and in some cases, ridges with particularly rough edges may require grinding to ensure a smooth application.

A new layer of mortar, typically 3mm to 5mm thick, is then applied. This must be done with care, ensuring a clean, smooth finish with no visible cracks or holes to maintain a watertight seal.

Cement mortar is available in a range of colours, and clients are always offered a choice to ensure the final finish complements the existing roof aesthetic.