15
Jøtul Chimney system
Through-connection, flammable wall
In the case of a through-connection in a wall where
the insulation material comprises chipboard, loose
wool or equivalent, a shaft must be built with meas-
urements in accordance with the table on page 5.
The shaft must be insulated with the enclosed rock
wool mat.
min. 50 mm
min. 50 mm
Dekkeplate
Diffusjons-
sperre
monteres
mot vind-
sperre
Diffusjonssperre
monteres mot
fuktsperre på
innsiden
Dekkeplate
Standard installation through outer wall
Floor structure with blown insulation
When blown insulation is used in the floor structure,
a plate shaft, spiral pipe or similar round pipe mod-
ule must be installed with a minimum distance of 5
cm.
Non-flammable material
In the case of a through-connection in non-flam-
mable material of class EI60, no safety distance is
required. Some distance is required for clearance and
space for a length extension.
NVI 2000 - THROUGH-CONNECTIONS
Walls and roofs in houses
When making a hole in a house, it is extremely important for the installation to be completely airtight, as
otherwise there is a risk of condensation forming in the roof structure; the use of a diffusion barrier is therefore
necessary.
The diffusion barrier must seal around the entire chimney; slits must not be cut in the hole in the membrane.
The diffusion barrier must also seal against the plastic film around the entire installation. Glue the diffusion
barrier to the plastic film. If the diffusion barrier’s outer dimensions need to be cut to a smaller size, more tape
must be used to ensure the seal. Use the tape recommended by the company that produces the plastic film. For
example, diffusion barrier tape or butyl tape.
Cover plate
Cover plate
min. 50 mm
min. 50 mm
Diffusion
barrier
installed
against wind
barrier
Diffusion barrier
installed against
moisture barrier
on the inside