Page 15 - 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.

le
1:

Carbon
footprint
of
modified
wood
product
based
on
EPDs

Type
of
NEPD
Biogenic
Production
Maintenance
and
Waste
Total

product
nr.
carbon
processing

A1-­‐A3
repair

B2-­‐B3

C3-­‐C4

Royal
294N
770
-­‐652
60
824
232

impregnated

pine

Thermally
260N
1159
-­‐430
90
1181
841

modified
ash

Thermally
259N
786
-­‐258
64
801
607

modified
pine

Biogenic
carbon
significantly
influences
the
modules
where
it
is
included,
but
with
combustion
at

end-­‐of-­‐life,
these
emissions
are
balanced
by
uptake
during
growth.
There
have,
however,
been

methods
developed
to
account
for
time-­‐adjustments
to
greenhouse
gas
emissions
and
these
have

been
elaborated
in
Tellnes
et
al.
(2014)
for
several
façade
materials.
This
review
of
biogenic

carbon
emphasises
that
the
quantity
of
biogenic
carbon
must
be
transparently
documented
in

EPDs
so
that
all
alternative
methods
can
be
used.
The
timing,
amount
of
uptake,
and
emissions
of

biogenic
carbon
should
therefore
always
be
reported
in
a
wood
EPD.

References

Tellnes
L.
G.
F.,
Gobakken
L.
R.,
Flæte
P.
O.,
Alfredsen
G.
(2014).
Carbon
footprint
including
effects
of
carbon

storage
for
selected
wooden
facade
materials.
Wood
Material
Science
and
Engineering,
9,
33:
139-­‐143.

3