Page 2 - Approved Document J
P. 2


MAIN CHANGES IN THE                                  MAIN CHANGES MADE BY THE
2010 EDITION                                         FURTHER 2010 AMENDMENTS

Section 1                                            This 2010 edition incorporates changes to reflect
New guidance has been included for access for        the renumbering of regulations in the Building
visual inspection of concealed flues. This should    Regulations 2010 and Building (Approved inspectors
ensure that flues can be properly inspected both     etc) Regulations 2010. There have been no
when an appliance is first commissioned and          changes to the requirements in Part J of Schedule
subsequently serviced.                               1 to the Building Regulations, but please note the
                                                     simpler definition of ‘room for residential purposes’.
Section 2
Guidance has been included in support of a new       MAIN CHANGES MADE BY THE
requirement J3 “Warning of release of carbon         2013 AMENDMENTS
monoxide” on the provision of carbon monoxide
alarms where solid fuel appliances are installed.    These changes, which apply only to England*, update
The provisions for flue outlet clearances relative   the guidance on materials and workmanship.
to adjacent pitched roofs have been clarified in
Diagram 17.
The guidance on the provision of hearths and
wall clearances for solid fuel appliances have
been made more flexible to take account of the
availability of modern appliances.

Section 2, 3 & 4
The guidance for permanent ventilation openings
for open flued appliances in very airtight houses
(those with a design air permeability less than or
equal to 5.0 m3/(h.m2)) have been increased to
counteract the decrease in adventitious ventilation
relative to older houses. Appendix F gives advice
on assessing the air permeability of older houses
in relation to this guidance.

Section 4
This section now explicitly includes liquid biofuel
and blends on mineral oil and liquid biofuel
within the scope of combustion installations
designed to burn oil.

Section 5
The guidance on identifying where secondary
containment for oil tanks is necessary has been
expanded to include locations in inner protection
zone as shown on the Environment Agency’s
groundwater sources map.

Appendix G
This informative appendix provides and explanation
of the European designation system for certain flue
and chimney products.

*This approved document gives guidance for
 compliance with the Building Regulations for
 building work carried out in England. It also
 applies to building work carried out on excepted
 energy buildings in Wales as defined in the Welsh
 Ministers (Transfer of Functions) (No 2) Order 2009.

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