Question on flashing tile with u bend

[damanpunk]

Guys,

I'm looking to re-route my sky/tv cables due to an impending lean to garage build. At the moment they exit the house underneath the eaves and run up the tiles to the dish/aerial.

In readiness for the build I want to install a roof tile flashing with a u-bend at the top of it to prevent water ingress. Does anyone know where I can find something like this pre-made?

All the ones I've found come with a rubber boot like this http://www.stovesandfluesltd.co.uk/...ium Roof Flashing kit for 50mm - 170mm Flues"

I could use something like that but not sure where I'd get 50mm+ dia pipework to go with it?

 

[onecog]

Use some 68mm rainwater pipe with a glued on bend.

 

[damanpunk]

About 2 seconds after posting I found an aquatics website selling 56mm od solvent welded polypipe for fishtanks!! I've ordered some of that so will get an aluminium flashing tile ordered.

How much should I expect to pay a roofer to fit the tile?