Boiler flue next to flat roof extension Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[DIYynot]

Hi there I’m planing to extend my flat roof at the side of my house , at the moment the boiler flue is just next to the existing flat roof,do I need to extend it horizontally and then instal elbow and vertical kit,or it can be done by elbow 500mm vertical pipe and elbow again?The window above is not openable.