How to bridge Colorbond to tiles on the roof?

a_amir

Greetings, lovely community.

I have a colorbond section on a tiled roof. As seen in the photos, the way the colobond is connected to the tiles is via a piece of flashing that extends from the last ridge of the colorbond, under the adjacent tile, with a small upwards "lip" created at the end of the flashing under the tiles.

As you can imagine, under the right (wrong?) conditions, water overflows into the roof cavity and runs down the walls inside the house.

I'm considering removing this flashing, and bridging the gap instead with a suitably sized (perhaps 300mm) lead-free flashing instead, something like Smartform or Dakaflash. Is this the best long-term solution? It's a bit tideous and somewhat pricey solution, so any tips and suggestions are very welcome.

EricL

Hello @a_amir 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your tiles.

I propose replacing the flashing under the tiles and Colorbond roof with a wider piece of flashing so that it can accommodate a larger volume of water before it overflows. Next, I suggest making sure that the lip of the flashing properly flows into the gutter. Once you've carried out the repairs, your proposal of using either Dakaflash or Smartform is an excellent solution to preventing water from entering the gap. My best advice is to make sure you get a good solid overlap so that water does not bridge back to the gap.

Let me call on our experienced members @Dave-1 and @Nailbag for their recommendations.

If you need further assistance, please let us know.

Eric