Ucwaningo Lwembula Indlela Yokunciphisa I-Carbon Footprint Yezindlu

I-Université Libre de Bruxelles (ULB) kanye neYunivesithi yaseCorvinus yaseBudapest

A house’s carbon footprint decreases more than 1kg in carbon dioxide equivalent for every euro (around £0.80p) invested in izinto zokwakha ezisimeme, ithola ucwaningo olusha oluvela ku-Université Libre de Bruxelles (ULB) kanye ne-Corvinus University yase-Budapest. The largest impact comes from investing in sustainable windows and external walls.

UBruno van Pottelsberghe, uRector we-Corvinus University of Budapest, kanye no-Joran Douhard, ikhandidethi ye-PhD e-Solvay Brussels School of Economics and Management of ULB, baqhathanisa izindlu ezijwayelekile (ezihlukanisiwe nezihlukene phakathi) nezinguqulo ezisimeme ezakhiwe ngezinto ezithinta imvelo.

Ukusebenza kwempahla yokwakha kubalwe ngokwemibandela yokukhishwa kwekhabhoni dioxide encishisiwe (CO₂eq) nge-euro etshaliwe. Lokhu kulinganisa umthelela wezinto ezikhishwayo, isb, i-methane inamandla aphindwe izikhathi ezingu-28 kokufudumala kwe-CO₂ ngakho i-1kg methane ilingana no-28kg CO₂eq.

The researchers found that most CO₂eq emissions come from the use of a house (operational stage), rather than construction or maintenance, with 65% of a house’s total carbon footprint attributed to energy used during its lifetime.

Lapho zonke izindleko zicatshangelwa (ukwakha, ukusebenza, ukugcinwa), izindleko eziphelele zobunikazi bezindlu "ezisimeme" ziphakeme ngo-7-11% kunezindlu ezijwayelekile. Izindleko zokunakekela izindlu nazo zingu-20% (zihlukanisiwe) kanye no-13% (ezihlukene kancane) eziphakeme ezindlini ezisimeme, ngenxa yokushintshwa kwezindlu njalo njalo. izinto ezisimeme.

“The impact of the construction sector is country-dependent, so international comparisons should be made with caution (e.g., operational impact is highly dependent on heating systems, which vary a lot between regions). Nevertheless, some observations can be easily generalised to a wider EU context, such as the lower overall impact of timber frames compared to concrete structures or the imbalance between embodied and operational carbon impacts. As the methodology and data are available, interested readers will be able to easily adapt our results to local specificities,” say the researchers.

Ucwaningo luphinde lubonise ukuthi izingxenye ezithile zendlu zinethonya elikhulu ku-carbon footprint. Isibonelo, izinto ezizinzile ezisetshenziselwa izindonga namafasitela zangaphandle zibe nomthelela omkhulu kakhulu, zehlisa ukukhishwa kwekhabhoni ngo-6kg no-3-6kg nge-euro ngayinye ngokulandelana.

Njengoba imboni yezindawo zokuhlala ibalelwa ku-17% wabo bonke ukuphuma kwekhabhoni emhlabeni jikelele, lo mkhakha kufanele ube yindawo okugxilwe kuyo labo abanethemba lokunciphisa izinga lekhabhoni emphakathini, futhi lolu cwaningo lukhomba lapho ukusetshenziswa kwezinto ezisimeme kungase kubekwe eqhulwini ukuze kube nomthelela omkhulu kakhulu.

Lokhu okutholakele kwashicilelwa okokuqala kuJournal of Cleaner Production.