DIY Doctor UK DIY Forums

Hello all. Could someone in the know tell me if the following is possible please.
I have a condensing boiler that has a flue exiting out onto the side of house i intend to put a lean to concrete sectional garage. My question is it possible for flue to
elbow up and out through cement fibre sheet roof.

Many thanks
Steve

Best advice would be to call the boiler manufacturer for locations and a RGE to look at it.