Boiler Flue Through Roof

Can installing a vertical boiler flue cause leaks in your roof.

Boiler flue through roof.

As they pass through the home up to the roof vertical flues are either boarded over or housed inside a cabinet. Flashing kits flashing plates and weather collars in the range can be made of sheet metal plastic or composite materials and. However if a vertical flue is badly fitted then yes you could have a leak on your hands. Firstly you ll want to know your chosen engineer is fully competent and experienced at fitting flues through roofs.

A vertical flue looks similar to a very small chimney. 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. 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. When a non condensing boiler is replaced with a condensing boiler the different flue arrangements could mean that the current flue has to be relocated.

If everyone who installed a vertical boiler flue through a roof had to fix leaks right left and centre then no one would install them at all. The above points only really apply for flues that exit the home horizontally through a wall but that doesn t mean there aren t any regulations if your boiler flue goes vertically out of the roof. Think of it this way. Definition of a boiler flue.

In this case the flue goes upwards and then out through the roof. You may need an experienced roofing contractor. Depending on design installation of a flue terminal would cost around 20 40. Condensing boilers are highly efficient units that have 2 internal heat exchangers meaning that less heat is lost through the flue.