The mortar cementing the ridge capping to the roof tiles are usually the first aging problem that impacts on your roofs integrity. Repointing with first Star-point eliminates the problem of aging mortar.
Starpoint is made from water based polymers and fillers and is intended to ‘feel’ like normal cement mortar. It contains no volatile additives and is therefore safe to use. It differs from traditional and inherently brittle cement mortar pointing in that it retains a significant post cure flexibility. This enables it to flex in harmony with roof movements without cracking or breaking away.