How To Do Pointing On Roof Tiles

If the pointing is worn or damaged the roof tiles may.

How to do pointing on roof tiles.

Once inside the moisture continues to do damage so repointing is a necessary part of home maintenance. I suspect it has never been done properly each of the 3 times it has been pointed. Roof leaks and excess moisture are two common signs that the pointing is failing. Here are my 6 steps to remove and correctly replace the cement under a ridge tile if you are looking to replace the cement on a gable apex then.

Lift all ridge tiles. Granules in the gutter. Following this bedding mortar is mixed which is made up of 3 parts roofers loam to 1 part cement. Recent changes to the british standard for slating and tiling bs 5534 tell us that we can no longer rely on mortar properly mixed or otherwise to secure ridge or hip tiles to our roof.

Remove all cement and dust off tiles. Prepare new cement 3 parts sand to 1 part cement. As the cement mortar or flexible compound breaks down or cracks water can reach the inside of the roof. We do not need to worry about those already installed but as we repair and replace tiles and fittings on the roof we need to ensure that they are fitted in.

A ridge rack is used to keep the ridges straight and the bedding applied in the right spot for the ridge caps to sit on. Replace any damaged tiles ridges. The pointing is responsible for holding roof tiles in place. Re bedding requires removal of the old existing bedding and pointing material.

Also the ends of the battens should be slightly higher at the gable end to pitch the water back onto the roof tiles so that rainwater does not drip or run down the wall. I had it repointed but it fell out again after another year. As the first line of defence against water ridge tiles must be cemented into place and pointing applied to the exposed edges of the tiles. I had it repointed again in october 2014 and it has fallen out again from under the roof tiles.

The tiles should project past the edge of the gable end and should have an under cloak so that they can be pointed with mortar to seal the ends. This bedding mix is then applied by trowel to the roof tiles to be covered by the ridge capping. After about a year the pointing from one of the valleys fell out.