How To Do Roof Tile Pointing

As the cement mortar or flexible compound breaks down or cracks water can reach the inside of the roof.

How to do roof tile pointing.

Re bedding requires removal of the old existing bedding and pointing material. The pointing is responsible for holding roof tiles in place. 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. Traditionally repointing was done with a sand and cement mixture but today flexible repointing materials are used that minimise the problems of shrinkage and cracking that commonly occur with cement.

The roofers of old would use a mixture of sand aggregate and cement that would stand the test of time. This bedding mix is then applied by trowel to the roof tiles to be covered by the ridge capping. Flexible pointing was introduced to enhance the longevity of this mortar. 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.

Position the first roll of underlayment at one side of the roof perpendicular to the lower edge the eave of the roof. Replace any damaged tiles ridges. Lift all ridge tiles. Roof leaks and excess moisture are two common signs that the pointing is failing.

Granules in the gutter. Following this bedding mortar is mixed which is made up of 3 parts roofers loam to 1 part cement. Hi mark without looking at the type of ridge tile it is not possible to be 100 sure depends what type of ridge tiles you have on your roof angled capped ridge tiles do not require pointing if fitted correcty and are indeed secured from below if it is just half round then yes thay do need pointing. As you roll out the underlay keep the bottom edge of the material aligned with the edge of the eave but above any metal or synthetic edging that may cover the borders of the eave.

In the past the norm was to simply use a sand cement based mortar to adhere ridge caps to roof tiles. What is the process involved in re bedding or re pointing. Prepare new cement 3 parts sand to 1 part cement.