Chauchy

Building Photo

Description

Type of project: Transformation of an old barn from the 1800s with reuse

Type of building: Cooperative housing

Construction materials: Rubble stones and wood

Building energy reference area (ERA): 548 m²

Floors: 3

Location: Denens, VD

Project phase: Completed in late 2023

Official webpage

BUILDING Key Performance Indicators

Material Intensity

Life cycle GHG emissions (construction)

Stored biogenic carbon

1317

kg/m²

430

kg CO2-eq./m²

28

kg C/m²

REUSE BUILDING Key Performance Indicators

Emissions reduction due to reuse

Share of Ex-situ/In-situ

Share of adaptive reuse

Ex-situ reuse supply distance

24

kg CO2-eq./m²

14

% of total mass

29

% of total mass

3.3

km (weighted average)

Reuse strategy

Reuse map


⚠ Changing the visibility of the columns can mess the table display. 🔧To re-arrange the columns, double-click on the "n°" column's title.

Material flow analysis by Sankey diagram

Building LCA impacts

GHG emissions results : Construction

GHG emissions results : By building layer

GHG emissions results : By building element

The table describes the reused products, their supply-chain activities and the associated GHG emissions.

Select a set of columns by clicking on the buttons with the '🔍' icon.

Click on the button to show the missing columns' values.

LCA data quality are evaluated in terms of degree of confidence in their representativeness and appropriateness. Data quality is rated with colored dots:

• Very good : project-specific & product-specific data

• Good : data is a good estimate but may come from a different project or product

• Average : data is an expert jugement or hypothesis based on partial knowledge of the reality

• Poor : data is generic, default data from external source or hypothesis

• Unavailable : no LCA data is used or available, hence calculation is not performed

Material mass analysis graph shows the mass shares of material groups and products in the total mass of the building.

Hover with the pointer and click on the materials groups and products to show their respective mass share (%).

Building LCA impacts are show in the table for each KBOB's impact indicators:

The columns are the building life cycle modules according to EN 15804 and EN 15978.

Select the unit of the LCA impacts expressed either by sqm ERA of building or by sqm ERA of building and by year of building's lifetime (60 years)

This graph shows the impact per kg of product of the selected LCA indicator for the reused products (left) and their new equivalent production (right). New materials effectively used in the building are not shown.

Interact with the graph by clicking on the labels in the legend (i.e. A1-A3, A4, B4, C1-C4) and by zooming on the desired portion of the graph.