Advice please heavy porcelain tile under cill reveal above shower

[Chris G]

The tiles are too heavy chris.

Mechanically fix (and bond) wedi board into the lintel, using multiple anchors. Then ensure a solid thin bed of decent adhesive.
That will make sure they aren't going to pull the plaster off as gravity takes hold.

thankyou for the advice impish , I’m going to see about this option.

 

[One Day]

thankyou for the advice impish , I’m going to see about this option.

Even a 6mm wedi/jacko/kerdi board will take the weight.
Concrete lintels can take a fair bit of drilling though.
I'd suggest SDS 8mm bit and these plugs:
Fischer High Performance Universal Plugs UX8 4.5-6 x 50mm 100 Pack - https://www.screwfix.com/p/fischer-high-performance-universal-plugs-ux8-4-5-6-x-50mm-100-pack/20669

Pushed in with a squirt of this:
Fischer FIP 300SF Polyester Styrene-Free Resin 300ml - https://www.screwfix.com/p/fischer-fip-300sf-polyester-styrene-free-resin-300ml/23386

Just charge it to the customer and explain it's neccessary.
They'll appreciate it.