Boiler Flues Through Roofs

The majority of boiler flues exit out of a wall horizontally but if the flue from your boiler comes out at roof level then there are also some regulations that need to be considered.

Boiler flues through roofs.

The fault was only detected after the resident had contacted a gas safe engineer to inspect what they thought was a faulty 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. In 2015 for example a contractor re roofing a flat roof above a flat in paignton devon was fined 2 000 plus legal costs for failing to reconnect a flue to the boiler. To expel the boiler s exhaust gases into the outside air where they are dispersed in the atmosphere.

In cases where the boiler is not fitted to an external wall a vertical flue may be installed. The engineer duly got in touch with hse. 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. In a modern fan assisted condensing boiler the boiler flue could just as easily be described as an air flue gas duct as it has two separate channels for gases and serves two functions.

A reputable engineer will follow manufacturer s instructions when fitting your vertical boiler flue with respect to the length and other things currently on your roof. With a horizontal flue the pipe travels straight through the wall behind the boiler. 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. That s because the combustion byproducts are in a gaseous form so the gases can float up through the flue pipe and out of your roof.

Different flues and boilers sometimes have different specifications. In this case the flue goes upwards and then out through the roof. Typically this applies when your boiler burns solid fuels.