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Flat roof flue regulations.
The building regulations for flat roofs can seem like a lot to understand.
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.
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The gas safety installation and use regulations in your own interest and that of safety it is law that all gas appliances are installed by competent persons and in accordance with the above regulations.
How far this is will depend on the size of your boiler but is typically between 30 60cm above below or to the side of an opening.
Sometimes the excitement of starting a new construction project or building venture can lead you to forget about the finer details such as planning permission and local building regulations.
In summary in order to satisfy the building regulations if a flue or chimney exits the roof more than 600mm from the ridge of the roof then the horizontal distance from the top of the flue or chimney should be at least 2300mm above the roof or ridge.
Homes built on varying terrain have their own set of chimney and flue regulations.
For the case you describe there are other distances like from windows and depending on the total chimney height even meeting the above roof minimum distance 3 ft.
If the flue exits the roof further down then it must extend high enough to acheive 2 3m of horizontal clearance.
Make sure your comply with flat roof building regulations.
If the chimney or flue exits the roof.
For the roof terminal flue kit for pitched and flat roofs gulfstream 20002000 roof terminal flue kit g c.
Usually flat roof constructions are defined as either cold or warm.
Depending on design installation of a flue terminal would cost around 20 40.
How far from a window must the chimney cowl be in the u k.
Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration.
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When installing a new twinwall flue system if the flue exits the roof within 600mm horizontally from the ridge high point of the roof then the flue must extend a minimum of 600mm above the ridge.
How high does the flue have to go.
Under the boiler flue position regulations the flue has to be positioned a certain distance from any parts of the home that can be opened up such as windows and doors.
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On a flat roof may not be tall enough.
Flues need to be 600mm higher than the highest part of the roof within 3 metres.
