1. Comparison between different LCA methods in regard to fire protection
By Louise, Regitze and Kikki

2. Goal
Identify the best fire protection system in terms of sustainability, based on a case study. Investigate different programs for preforming an LCA. Made in collaboration and based on a project by Vandkunsten
Sustainability: We look at LCA and LCC as we assume other sustainability factors to be the same (social).
Der er mange i branchen der skal i gang med det her (DGNB) derfor er det interessant at undersøge.

3. Functional unit: One building from the Lisbjerg project functioning in 50 or 120 years
The LCA
Reference flow:
Timber column covered with
insulation
Larch 27 mm
Window with aluminum and pine frame
Sprinkler system
Larch-sprinkler system
Compare two different facade systems resulting in two different ways of fire proving the system,
Even tough the functional unit is one building all the things considered to be the same is left out in the reference flow because it as a comparative study.
During the life time more than one of some of the given components in the reference flow is needed to last the entire life time
Timber column covered
with two layer resistant plaster on three sides
Steel plate 0,6 mm
Window with Kebony and pine frame
Steel plate-plaster system

4. Results – comparing fire protection
EoL is separated.
The results shown are the percent (deviation) of the total normalized results
Steel plate – plaster system best in all impact categories except GWP
End of Life scenario: Larch –sprinkler system is best in all impact categories except in GWP – because of the big negative impact from the wood?

5. Results - Life cycle cost
Construction price pr. m2
Maintenance price pr. m2
Larch – Sprinkler system kr kr
Steel plate – Plaster system kr kr
50 years
The Steel plate – Plaster cost less both in construction and maintenance
Delkonklusion på sammenligning af brand sikrings systemer: From this and other resutls not shown it can be seen that the Steel plate – Plaster system is best

6. Results – Program comparison
Person equivalent PE
The normalized results for the components in the two systems is shown for GWP 50 years for the three different programs.
We also tried to use OpenLCA, but the results differed so much from the rest and it could only calculate for 100 years
Aleksanders Program er godt nok, men viser kun GWP så er derfor ikke fyldestgørende nok – det giver ikke det fulde billede hvis man vil bruge det til at sammenligne løsninger.
10% lower – maybe some limits in entring decimals.
Delkonklusion på program sammenligning: units. What are the impacts given in
Steel plate – Plaster system
Larch – Sprinkler system

7. To sum up
The Steel plate – Plaster system is lowest in most impact categories – but not in EoL. It is also lowest in economy
The programs recommended by DGNB shows the same tendencies, but the user friendliness is very different
The best fire protection system is only based on one case study
Both analysis are based on DGNB’s guidelines
Det ville være interessant at have set på hvordan DGNB’s retningslinjer havde været i forhold til andre metoder.
Sensitivity analysis