Boiler Flue Through Flat Roof

Boiler flue flashing products are typically used when installing a vertical flue kit through a flat or angled roof as it will provide a weather tight seal to the roof and stop any water leaking into the flue system.

Boiler flue through flat roof.

Especially if it s not sealed properly. A flue terminal guard is used when the flue terminal is lower than 2m above the ground in an area where people could walk or when the flue comes up through a flat roof to which people have access. Some installers advise against it becuase they say it is tricky and prone to leaking damaging the boiler in the process. You see if you ve got a boiler in your attic and the flue goes through the roof there s a chance it could get bashed or pulled on accidentally when you re up there.

Most modern boilers under 15 years old will have a round flue pipe with boilers older than that often having a square flue. Is it possible to have the flue of a combi boiler going through a flat roof. However if a vertical flue is badly fitted then yes you could have a leak on your hands. All of our fixed boiler quotes include the flue that you require and any remedial works.

I very much doubt this would meet building regs. In some cases where building types and shapes differ you may have a vertical flue which exits through the roof of your property. Depending on design installation of a flue terminal would cost around 20 40. You can get plume kits designed to direct the steam up and away from a horizontal flue but not to make a horizontal one into a vertical through a roof.

There are maximum lengths the flue can be depending on the boiler. Securing any joints with brackets will help to ensure your flue can withstand people banging a suitcase or accidentally knocking it without wobbling or coming loose. This flat roof penetration collar flashing enables you to create a watertight bond for flue holes cut through a flat roof. I am considering having one fitted but wanted to know whether it could be reliably done without a leak.