1. Total house building CO 2 emissions Design of a house civil/structural systems wall areas room volumes wall materials foundations framework access roads mechanical systems heating/cooling electricity generation Bill of materials civil/structural materials masses and volumes of timber, plasterboard, concrete, brick, etc.. mechanical materials masses and lengths of piping, cable etc. mechanical devices boilers, heat pumps, tanks, etc. Location Length of life Total CO 2 emissions from construction for each year of use defined using ISO 15926 reference data from LCA Info Hub LCA reference data emissions for materials emissions for transport emissions for energy

2. House usage CO 2 emissions Design of a house civil/structural systems wall areas room volumes wall materials foundations framework access roads mechanical systems heating/cooling electricity generation Total CO 2 emissions for year of usage Location Length of life LCA reference data emissions for materials emissions for transport emissions for energy Energy flows heat loss from walls inputs air heating air cooling hot water Local energy sources

3. Scope of ISO 15926 house demo for CO 2 emissions Design of a house civil/structural systems wall areas room volumes wall materials foundations framework access roads mechanical systems heating/cooling electricity generation Bill of materials civil/structural materials masses and volumes of timber, plasterboard, concrete, brick, etc.. mechanical materials masses and lengths of piping, cable etc. mechanical devices boilers, heat pumps, tanks, etc. Total CO 2 emissions from construction for each year of use Location Length of life LCA reference data emissions for materials emissions for transport emissions for energy

4. Scope of ISO 15926 house demo for CO 2 emissions Design of 180m 2 house Designer can choose between –Wooden frame and wooden walls –Steel frame and wooden walls –Steel frame and concrete walls –Wood frame and brick walls Unit of function, CO 2 release per m 2 of house Raw material production, final products fabrication, transportation and removal to be considered

5. Scope of LSA Example Raw Material Transport Fabricate Transport Product Dispose

6. Conceptual Model, Design of House based on LCA of CO 2 release ISO 15526 RDL RDF Schema LCA of House Find standard terms and definitions Export to XML file Input material quantities Input transport distances Get CO 2 release Design modifications EU LCA data base of CO 2 emissions Extract CO 2 data on a unit basis Manual CO 2 input on a unit basis for data not found in EU data base Reference Data System browser Excel macros Manual CO 2 unit additions Semantically rich data that can integrate CO 2 data at a detailed level and from many sources

7. System design Bill of materials Total CO 2 emissions from construction for each year of use EXCEL EU LCA Info Hub edit ISO 15926 object model for house merged data as RDF Design of a house Location Length of life LCA reference data export of model with relevant reference data selection of relevant LCA reference data

8. Data Flow, Design of House based on LCA of CO 2 release ISO 15526 RDL RDF Schema LCA of House Find standard terms and definitions Export to XML file EU LCA data base of CO 2 emissions Extract CO 2 data on a unit basis Manual CO 2 input on a unit basis for data not found in EU data base Reference Data System browser Excel macros Semantically rich data that can integrate CO 2 data at a detailed level and from many sources Input material quantities Input transport distances Get CO 2 release Design modifications Manual input of CO 2 emissions

9. Reference Data House RoofWall Reinforced Concrete Outer Wall Timber Framework Outer Wall Timber Framework Roof Steel Framework Roof Steel BeamsWood Girders Plywood Wood Joists (Rafters) Wood Shingles Tile Shingles Wood Columns Plywood Studs Wood Cladding (Siding) Rebar Cement Sand Course Aggregate Admixture Steel Roof Cladding Steel Rafters (Truss) Brick Outer Wall Brick Cement Sand

10. CO 2 Data and Matching to Reference Data RDF Schema reference data --- EU LCA data base of CO 2 emissions Reference data --- Extract relevant reference data CO 2 emission --- matching Extract CO 2 emissions Match reference data with equivalent LCA data Return CO 2 emissions

11. Excel Macro Design Tool RDF Schema of Reference Data and CO 2 Emissions Excel Macros Example Excel Macro