cement between roof tiles

[p414]

I have some concrete [ red] roof tiles that let water drip into the extension.[ roof made will little slope.]

What cement filler can I put in [from inside] to stop this ?

Thanks all ,in advance, for any response..

[AlexRRR]

Hard to say with out a picture, normally an extension the new roof is not attached to the old roof there for you need to have flashing placed between the roof and the wall., its very common here for hick builders to not flash off.

[p414]

7 hours ago, AlexRRR said:

Hard to say with out a picture, normally an extension the new roof is not attached to the old roof there for you need to have flashing placed between the roof and the wall., its very common here for hick builders to not flash off.

Thanks Alex ...The extension was done by cowboys ..they got the extending stainless steel girders too short and thus made the slop[e on the roof too acute..In heavy rain water runs back under the tiles and drips into the extension..I have put some cement from inside under the leaks but sometimes water still gets past.....I am using Crocodile silver premier plus but wonder if there is a better cement....I have thought about using TOA SILICONE HP...But there are some places where I cannot get to with this...Thanks again for your response.

[AlexRRR]

Theres a fix for that like placing a length of sheet steel thats wide and has an angle folded down say at 45 degrees onto it that sits on a batten directly below the tile, can be screwed directly on to the battern that would stop the wind and power of the rain forcing  the water back under the tile, then as you replace tile over this well crude flashing you can bed in with normal mortar, in AU they use normal morta/cement same as a brike layer for beding in a tile on a roof.

[p414]

On 6/27/2025 at 2:24 AM, AlexRRR said:

Theres a fix for that like placing a length of sheet steel thats wide and has an angle folded down say at 45 degrees onto it that sits on a batten directly below the tile, can be screwed directly on to the battern that would stop the wind and power of the rain forcing  the water back under the tile, then as you replace tile over this well crude flashing you can bed in with normal mortar, in AU they use normal morta/cement same as a brike layer for beding in a tile on a roof.

Thanks for your info.Alex...Much appreciated.