Abstract
The envelope of buildings has an important role in controlling the energy consumption in buildings. The climatic changes and depletion of conventional sources make this fact important. This paper endeavors to estimate the thermal performance (steady-state) condition of a range of houses envelope with different architectural styles in Northern Iraq. The study examines the potential of the building envelope materials to control heat loss/gain through calculating U-Value (Heat transfer coefficient value). The capacity of the building's envelope materials to maintain indoor temperature is a goal to perform thermal comfort and decrease energy usage. The potential of buildings envelope materials for each architectural style in terms of their thermal performance has been identified and the results have been determined. Reconcile the new materials and technologies with old vernacular materials and techniques, would grant effective design potential. Finally, the recommendations to develop new envelopes have been suggested to reduce energy consumption in future houses.
Highlights
Buildings consume about 40% of global energy, and they emit approximately one third of carbon dioxide emission to the atmosphere [1]
This gives the facility to investigate a different type of building envelopes throughout expanded history; 3) The city and the region of study (Kurdistan of Iraq), heavily using the electricity to maintain heating and cooling in the buildings, and the region suffering from a shortage of electricity supply
U-value for the roof has been calculated in the early modern buildings, and the results have shown that the U- Value is 2.12 (W/m2K)
Summary
Buildings consume about 40% of global energy, and they emit approximately one third of carbon dioxide emission to the atmosphere [1]. About 50% of the energy the building needs is spent to achieve thermal comfort, heat exchange with the outer environment is pivotal in buildings [2]. In single-story buildings, heat exchange occurs through external walls and windows by 45%, while 42% of this exchange takes place through the roof and floor slab, whereas air leaks are responsible for 13%. In the multi-story building, 70% of heat exchange happens through outer windows and walls, and 13% through the basement slab and roof, while, 17% of exchange of heat with outside occurs through air leaks [3]. From previous data, we can understand that from 83% to 87% of the heating/cooling energy depends on the envelope of buildings. The reduction of energy consumption in the building sector considers the inexpensive way to mitigate CO2 emissions, when it is compared with other sectors [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
