Yeşil Bina Tasarımında Sürdürülebilir Malzemeler: LCA Odaklı İnceleme

Öz

Yeşil bina tasarımında malzeme seçimi, artan karbon salımları, enerji kullanımı ve kaynak tüketimi nedeniyle sürdürülebilirlik performansının en kritik bileşenlerinden biri olarak öne çıkmaktadır. Güncel yaklaşımlar, yapı malzemelerinin yalnızca teknik özellikleriyle değil, yaşam döngüsü boyunca ortaya çıkan çevresel etkileriyle birlikte değerlendirilmesini gerektirmektedir. Bu doğrultuda LEED (Leadership in Energy and Environmental Design), BREEAM (Building Research Establishment Environmental Assessment Method) ve DGNB (Deutsche Gesellschaft für Nachhaltiges Bauen – German Sustainable Building Council) gibi uluslararası sertifikasyon sistemleri, malzeme kategorilerine ilişkin kriterlerini giderek daha ölçülebilir, karşılaştırılabilir ve LCA (Life Cycle Assessment) temelli bir yapıya dönüştürmektedir. Bu derleme, sürdürülebilir malzeme seçimini belirleyen temel unsurları incelemekte; düşük karbonlu üretim yöntemleri, geri dönüştürülmüş içerik, biyobazlı malzemeler, VOC (Volatile Organic Compounds) emisyonlarının azaltılması ve yaşam döngüsü değerlendirmesi gibi güncel araştırma temalarını bütüncül bir çerçevede ele almaktadır. Literatürdeki eğilimler, malzeme kaynaklı çevresel etkilerin azaltılmasına yönelik sertifikasyon puan yapılarının güçlendiğini, döngüsel ekonomi ilkelerinin tasarım süreçlerine daha fazla entegre edildiğini ve LCA kullanımının yaygınlaştığını göstermektedir. Bununla birlikte, veri tabanı farklılıkları, metodolojik uyumsuzluklar, bölgesel veri eksiklikleri ve özellikle doğal malzemelerin uzun dönem performansına ilişkin sınırlı deneysel kanıtlar, sürdürülebilir malzeme araştırmalarındaki başlıca sınırlılıklar olarak ortaya çıkmaktadır. Bu çalışma, malzeme özellikleri, yaşam döngüsü değerlendirmesi ve sertifikasyon kriterlerini tek bir çerçevede bir araya getirerek hem akademik araştırmalar hem de uygulama pratikleri için yönlendirici bir değerlendirme sunmaktadır.

Anahtar Kelimeler

• Yeşil Bina
• Sürdürülebilir Malzeme
• LCA
• Sertifikasyon Sistemleri
• Döngüsel Ekonomi

Sustainable Materials in Green Building Design: A LCA-Focused Review

Öz

Material selection in green building design has become one of the most critical components of sustainability performance due to increasing carbon emissions, energy consumption, and resource depletion in the construction sector. Contemporary approaches require building materials to be evaluated not only by their technical properties but also by the environmental impacts generated throughout their entire life cycle. Accordingly, international certification systems such as LEED, BREEAM (Building Research Establishment Environmental Assessment Method), and DGNB (Deutsche Gesellschaft für Nachhaltiges Bauen – German Sustainable Building Council) have progressively transformed their material-related criteria into a more measurable, comparable, and LCA (Life Cycle Assessment )based structure. This review examines the fundamental factors shaping sustainable material selection and synthesizes current research themes including low-carbon production methods, recycled content, biobased materials, VOC (Volatile Organic Compounds) emission reduction, and life-cycle assessment within an integrated framework. Trends in the literature indicate that credit structures targeting the reduction of material related environmental impacts have strengthened, circular economy principles are increasingly embedded in design processes, and the use of LCA has become more widespread. However, database inconsistencies, methodological variations, regional data limitations, and the scarcity of long-term experimental evidence particularly for natural materials remain key constraints within the field of sustainable materials research. By bringing together material properties, life-cycle assessment perspectives, and certification criteria, this review provides a comprehensive reference that supports both academic investigations and practical applications.

Anahtar Kelimeler

• Green Building
• Sustainable Materials
• LCA
• Certification Systems
• Circular Economy

Kaynakça

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