TY - JOUR AU - Caldas, Lucas Rosse AU - Lira, Júlia Santiago de Matos Monteiro AU - Melo, Pedro Corrêa de AU - Sposto, Rosa Maria PY - 2017/06/30 Y2 - 2024/03/28 TI - Life cycle carbon emissions inventory of brick masonry and light steel framing houses in Brasilia: proposal of design guidelines for low-carbon social housing JF - Ambiente Construído JA - Amb. Const. VL - 17 IS - 3 SE - Special Issue DO - UR - https://seer.ufrgs.br/index.php/ambienteconstruido/article/view/69454 SP - 71-85 AB - <p><span style="font-family: Times New Roman;"><span style="font-size: small;">This study evaluated the CO<sub>2eq</sub></span><span style="font-size: small;"> emissions during the life cycle of two social housing projects in the city of Brasilia. A house of ceramic brick masonry was compared to a light steel framing one. The life cycle carbon emissions assessment (LCCO</span><sub><span style="font-size: small;">2</span></sub><span style="font-size: small;">A) with a cradle-to-grave approach was used. The relation between the thermal performance of the wall systems and CO</span><sub><span style="font-size: small;">2eq</span></sub><span style="font-size: small;"> emissions in the operational phase of the houses were evaluated using the DesignBuilder software. In addition, six scenarios composed of three CO</span><sub><span style="font-size: small;">2eq</span></sub><span style="font-size: small;"> emission factors from the Brazilian electrical grid and two schedules of occupation of houses (full and part time) were evaluated. The brick masonry house presented less CO</span><sub><span style="font-size: small;">2eq</span></sub><span style="font-size: small;"> emissions than the light steel framing one. For both houses, the operational phase was the most significant regarding the total CO</span><sub><span style="font-size: small;">2eq</span></sub><span style="font-size: small;"> emissions (50% to 70%), followed by the construction (20% to 30%), maintenance (11% to 20%) and end-of-life (lower than 1%) phases. The results also showed the importance of considering different CO</span><sub><span style="font-size: small;">2eq</span></sub><span style="font-size: small;"> emission factors for the Brazilian context in the operational phase. Finally, based on the results obtained, design guidelines for low carbon social housing were proposed.</span></span></p> ER -