Ridge Capping: The Difference Between Bedding and Pointing

Let's clear up this common customer query: What is the difference between ridge capping pointing and bedding?

The ridge capping sits on a bed of mortar, which provides a solid, heavy base for the ridge capping to rest on.

Mortar provides very little adhesion, though, so on a steep hip the ridge caps may have a tendency to gradually slide out of position, or even blow off in a high wind.

Additionally, ridge caps are completely exposed to the elements - wind, sun and rain - as well as the clomping boots of the air conditioner man, the gutter cleaner, the electrician and so on.

Given that cement-based mortar is brittle, all this is a recipe for cracks to develop. And in a roof, cracks = leaks.

Enter the hero: Flexible Pointing Compound!

The flexible pointing compound goes over the mortar in a thin, continuous layer, holding it in place and forming a watertight barrier.

This is a relatively new product, only available in the last couple of decades, but it is now the industry standard. It is available in a range of colours to suit your roof tiles, and when properly applied, carries a ten-year guarantee.

In most cases the flexible pointing compound can be installed over the existing bedding without the need to re-bed the ridge caps. This is what is meant by repointing the ridge capping.

But in some instances, where the ridge capping is in very bad condition or has moved out of position, a re-bed will be required. The ridge caps will all be lifted and the old mortar cleaned off. Then the caps will be relaid in a new bed of mortar and pointed with flexible pointing compound.

We have repointed over 500 Perth houses. Will yours be next?

#roofrestoration #ridgecapping #repointing

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Find the answers to common roofing questions in our knowledge base. With a range of detailed articles on topics from ridge capping to reroofing and everything in between, you can better understand the work that may be required, the process involved and how we do it right. 

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