Flat Roof Wood Burner External Flue Regulations

A flue lining usually made of refractory concrete or impervious clay.

Flat roof wood burner external flue regulations.

The first is known as an air cooled chimney system. On 2019 11 21 by anonymous. Homes built on varying terrain have their own set of chimney and flue regulations. If the terminal is fitted less than 2 m above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be provided and fitted made by tower flue components tonbridge tn9 1tb model k3 plastic coated.

As the name implies air cooled systems use air for cooling. If the flue exits the roof further down then it must extend high enough to acheive 2 3m of horizontal clearance. Or shingle roofs the flue or chimney the regulations. 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.

Minimum clearance from combustible material. Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration. The flue will necessarily be quite close to the edge of the flat roof where it abuts. 450 mm 18 in.

The minimum clearance may be reduced by 50 percent to 225 mm 9 in if suitable shielding is installed either on the pipe or on the combustible surface. Anon there are some different requirements for wood burning fireplaces and woodstoves e g. E smoke shelf prevents downdraughts. In effect the regulations recommend a minimum flue size of 150mm for any stove including stoves in which wood can be burnt unless the stove is defra exempt link to defra exempt stove suppliers.

I m installing a wood burner as part of this project and the flue has to go through the new flat roof. A flat roof has a pitch of less than 10 degrees. D smoke chamber here the smoke gathers before being passed into the flue. Such as its roof tiles or external wall.

The flue is not yet in position nor is it likely to be when the roofers return not a great situation i know but i want to plan for the flue as best i can. B flue must be high enough for sufficient draught around 4 5m in most cases. The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr. They actually differ a great deal.

The purpose of venting systems for wood burning fireplaces and wood stoves seems similar. Flues need to be 600mm higher than the highest part of the roof within 3 metres. In the article above on this page the section titled roof clearances for wood burning fireplaces. Positions where this could be a nuisance should be avoided.

A flue pipe must never pass through a combustible floor or ceiling or through an attic roof space closet or concealed space. The minimum chimney height recommended for minimum performance of wood burning and multi fuel appliances is 4 5 m from the top of the appliance to the top of the chimney. Wood burning appliance venting is broken into two primary categories.