VENTILATED FACADES
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Ventilated facades reflect heat from the sun in summer. The
façades accumulate the heat on the panels and do not allow
it to pass to the lower layers. Heat leaked through the panels
is transferred from the wall to the outside thanks to the air
gap. (Chimney Effect)
Rainwater flows down the panels and 5-8% water enters the
joints. Thanks to the air gap, a part of it flows down, the rest
evaporates and does not touch the insulation on the wall.
(Chimney Effect).
In
heated
buildings,
in
winter,
the
vapour
pressure
inside
is
generally
higher
than
the
outside.
This
may
cause
the
vapour
pressure
to
be
carried
along
the
outer
wall.
Then,
the
moisture
is
removed through the air gap with free flowing air.
Some
part
of
rain
and
snow
water
entering
through
the
joints,
thanks
to
the
air
gap
(max.
8%)
evaporates
and
some
part
flows
down
without
touching
the
wall
surface.
It
does
not
touch
the
wall
surface or the insulation layer.
SUMMER
WINTER
Exterior Interior
Water
Air
Water & Ventilation
Interior Exterior
Heat
Humidity
Humidity & Heat Flow
Heat
Water & Ventilation
Exterior Interior
Water
Air
Humidity & Heat Flow
Humidity
Interior Exterior
