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3.5
ANGLED RADIANT SHIELD
When the chimney go through a combustible wall at an angle of 30 or 45 degrees, an angled
firestop or wall radiant shield must be installed.
Areas where the temperature is cold, we recommend the use of an insulated wall radiant shield, to
maintain the thermal value of the house wall (see diagram).
For the opening in the wall (See pages 19 and
20).
3.6
MINIMUM HEIGHT OF THE CHIMNEY
1)
The chim
ney must exceed at least 3’ (914 mm) its point of contact with the roof and must
overhang at least 2’ (610 mm) of any wall, roof or building in a radius of 10’ (3048 mm). If
the chimney exceed the roof by
5’ (1524 mm) or more, it must be solidified with a safety
attach.
2)
Cut and frame square openings in floor, ceiling and roof where the chimney must go through
and plan a space of 2’’ (51 mm) between the chimney and all combustible material. Do not
fill the 2’’ space with insulation or any other combustible material (See pages 19 and 20).
3)
The chimney sections which go through accessible spaces must be protected by an
enclosure to make sure that nothing and no one touch or damage the external side (See
page 19 and 20).
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