How to add stone cladding around base of timber posts?

[cjl1989]

Hi community, I have 4 pillars at the front of my house. The trim around the bases are constantly cracking and no doubt rotting despite my best efforts to caulk them every now and then. I was thinking an alternative solution would be some stacked stone cladding around them up to about 1m high. How would I go about doing this? Do I need to box it out with some timber and fibre cement sheeting then stone on top of that? Pics attached of the posts and what I'm proposing. Thank you! 

[MitchellMc]

Hi @cjl1989,

Your proposed solution of using stacked stone cladding is a practical and visually appealing option. However, before proceeding, it’s important to inspect the timber posts thoroughly to ensure they are structurally sound and free from rot or decay under the existing trim. If any damage is found, it should be repaired or replaced to prevent further issues.

Assuming the posts are in good condition, you can box them out with treated timber to create a square or rectangular shape. Once boxed out, cover the framework with fibre cement sheeting, as it provides a solid and moisture-resistant base for the cladding. Ensure all joints are properly sealed to prevent water ingress, which could lead to future rot.

Next, you can apply the stacked stone cladding using an appropriate tile adhesive designed for outdoor use. Start at the base and work your way up, ensuring the stones are level as you go. For a polished finish, consider capping the top edge of the cladding with a complementary material. This not only enhances the appearance but also protects the edge from weather exposure. 

Lastly, seal the stone with a quality penetrating sealer to maintain its look and durability over time. 

Please let me know if you have any questions.

Mitchell

[cjl1989]

Thanks Mitchell for the great reply. When you say ensure all joints are properly sealed, do you mean caulked or waterproofed? How would one do it? Thanks again

[EricL]

Hi @cjl1989 

In this instance waterproofed is preferred as it will be exposed to the elements. You don't want any of that water to enter into the timber, because as Mitchell mentioned you don't want it to rot. I propose using Davco 500ml Sanitized Tile And Grout Sealer or Dunlop 1L Natural Look Sealer to seal the surface of the stone.

If you need further assistance, please let us know.

Eric

[cjl1989]

Thanks Eric will do. I think Mitchell was referring to the sealing of the fibre cement sheeting joins? Mitchell if you could expand on this that would be great! Thanks again 

[Jason]

Sorry @cjl1989. Mitch is now on leave and will be away for a few weeks. @EricL will be happy to assist further when he is back on the site later today.

Jason

[EricL]

Hi @cjl1989 

If you wish to seal the joints of the fibre cement panels, I suggest using Selleys 290ml Clear Storm Waterproof Gutter And Roof Sealant. This will stop any water from coming through the joined sections of the fibre cement. My best advice to spread the sealer evenly and not to miss a spot.

If you have any other questions we can help with, please let us know.

Eric