Roof terrace with viewing-point and planting beds

Planting

Prefabricated floor elements with structural beams in an egg-box configuration allowing for canter levered balcony elements. Façade frame elements of Kerto Beams fastened to structural floor elements.

Duplicated module apartment floors

Angulated balconies

Glazed room on floor terrace

Load-transfer structure

Röda Sten structure

Concrete

Massive wood

Steel construction

Exterior Walls

Interior Walls

Slabs CO2

Winter Sun

Summer Sun

Balcony overhang gives shading in the summer months but allows light penetration thru winter. The overhang also prevents heat loss during the long winter nights.

Green roofs improve rainwater run-off as well as cleaning the water. Vegetation could be in the form of roof-top farming by residents.

Photovoltaic cells on roof perimeter

Massive timber structure:- Good heat capacity minimizes variation of indoor temperatures.- Hydroscopic properties of wood stabilize humidity levels creating a comfortable indoor climate.

Vegetation in planting boxes provide a windbreak as well as reduce airflow thru the building.

C I T Y A B O V E T H E C I T Y - 2 0 1 6 - 0 9 - 3 0 - R Ö D A S T E N - G O T H E N B U R G

Facade element bolted to L-brackets on both

sides of roof beam ends

Facade element bolted to L-brackets on both

sides of roof beam ends

Facade element Mitred & Feathered Corners

Balustrade Element Perforated Timber Sheet

Roof membraneOn foam cut to fall

to gutter

Retaining Parapet For roof top

vegetation Roof top vegetation

Armature Facade Element

BIOPHILIC DESIGN FOR HEALTH AND WELLBEING

CARBON FOOTPRINT COMPARISON

MATERIAL The building will ensure a healthy indoor environment. The unsurfaced wood finishes have a relaxing impact, there is good daylight and views out. The balconies will create the shadowing needed to reduce the impact of summer sunlight. The vegetation is beneficial for reducing noise and cleaning the air, and gardening offers a calming pastime.

Comparison of the carbon footprint of our building using different construction materials. The CO2 values used for the calculation of the different construction methods are based on standard Swedish construction techniques.

1

0,3

0,6

INTERIOR PERSPECTIVE CORNER APPARTMENT CROSS SECTION 1:200

Wood as a building material has many advantages over more commonly used materials. The light weight of wood, compared to for example concrete, is critical when using an existing building as a base. This allowed us to construct a more efficient and dynamic building without having to make substantial modifications of the art gallery below.

Another large benefit of wood is the low carbon footprint. Manufacturing of concrete and steel release enormous amounts of CO2 as a result of the energy required to process them but also through the emissions of the material itself as is the case with concrete.

To highlight the impact this had on our building we made a comparison of the built-in CO2 in our proposition and compared it with two other common building techniques. Our estimations show that through choosing massive wood as the primary construction material the carbon footprint is 70 % lower than that of a concrete structure.