Page 26 - Kutnar, Andreja, et al., eds., 2015. Proceedings of the 1st COST Action FP1307 International Conference - Life Cycle Assessment, EPDs, and modified wood. University of Primorska Press, Koper.
P. 26
-‐based
building
materials:
aesthetical
service
life
and
customer’s
environmental
conciseness
Jakub
Sandak1,
Anna
Sandak2,
Mariapaola
Riggio3
1National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
sandak@ivalsa.cnr.it
2National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
anna.sandak@ivalsa.cnr.it
3National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
riggio@ivalsa.cnr.it
Keywords:
aesthetic
service
life,
customer
preferences,
environmental
impact
Accurate
service
life
predictions,
service
life
cost
analyses,
and
the
aesthetic
performance
of
newly
available
bio-‐based
building
materials
are
essential
for
their
promotion
in
the
construction
sector.
Today’s
bio-‐based
building
materials,
even
if
well
characterized
from
the
technical
point
of
view,
often
lack
reliable
models
describing
their
performance
during
service
life.
The
appearance
of
bio-‐based
building
materials
often
changes
during
their
service
life.
Therefore
the
aesthetic
service
life
is
often
the
decisive
criterion
for
these
applications.
The
challenge
is
to
co-‐involve
physics,
chemistry,
and
mathematics,
as
well
as
psychology
and
customer
preference
research
in
order
to
improve
the
functionality
of
bio-‐materials
over
elongated
service
lifetimes,
and
minimise
the
environmental
impact
and
reduce
risk
of
product
failure.
This
research
is
an
attempt
to
investigate
the
influence
of
material
costs
and
environmental
awareness
on
the
choice
of
bio-‐materials
used
for
building
applications.
Special
focus
was
directed
toward
investigation
of
customer
preferences
regarding
use
of
local
and
imported
species,
modified
wood,
and
awareness
of
material
costs.
Preference
tests
performed
on
more
than
250
subjects
allowed
investigating
specific
preferences
influencing
selection
of
bio-‐materials.
The
test
was
performed
in
two
steps:
1:
participants
selected
picture
from
a
set
representing
various
species/products
shown
before
and
after
3
years
weathering
(Figure
1).
2:
participants
re-‐selected
picture
from
the
above
set,
but
considering
also
price
and
information
about
wood
provenance
(Figure
2).
14
building
materials:
aesthetical
service
life
and
customer’s
environmental
conciseness
Jakub
Sandak1,
Anna
Sandak2,
Mariapaola
Riggio3
1National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
sandak@ivalsa.cnr.it
2National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
anna.sandak@ivalsa.cnr.it
3National
Research
Council
Trees
and
Timber
Institute
(CNR/IVALSA),
S.
Michele
all’Adige
(TN),
Italy,
e-‐mail:
riggio@ivalsa.cnr.it
Keywords:
aesthetic
service
life,
customer
preferences,
environmental
impact
Accurate
service
life
predictions,
service
life
cost
analyses,
and
the
aesthetic
performance
of
newly
available
bio-‐based
building
materials
are
essential
for
their
promotion
in
the
construction
sector.
Today’s
bio-‐based
building
materials,
even
if
well
characterized
from
the
technical
point
of
view,
often
lack
reliable
models
describing
their
performance
during
service
life.
The
appearance
of
bio-‐based
building
materials
often
changes
during
their
service
life.
Therefore
the
aesthetic
service
life
is
often
the
decisive
criterion
for
these
applications.
The
challenge
is
to
co-‐involve
physics,
chemistry,
and
mathematics,
as
well
as
psychology
and
customer
preference
research
in
order
to
improve
the
functionality
of
bio-‐materials
over
elongated
service
lifetimes,
and
minimise
the
environmental
impact
and
reduce
risk
of
product
failure.
This
research
is
an
attempt
to
investigate
the
influence
of
material
costs
and
environmental
awareness
on
the
choice
of
bio-‐materials
used
for
building
applications.
Special
focus
was
directed
toward
investigation
of
customer
preferences
regarding
use
of
local
and
imported
species,
modified
wood,
and
awareness
of
material
costs.
Preference
tests
performed
on
more
than
250
subjects
allowed
investigating
specific
preferences
influencing
selection
of
bio-‐materials.
The
test
was
performed
in
two
steps:
1:
participants
selected
picture
from
a
set
representing
various
species/products
shown
before
and
after
3
years
weathering
(Figure
1).
2:
participants
re-‐selected
picture
from
the
above
set,
but
considering
also
price
and
information
about
wood
provenance
(Figure
2).
14
