ISSN:
2181-3906
2023
International scientific journal
«MODERN SCIENCE АND RESEARCH»
VOLUME 2 / ISSUE 10 / UIF:8.2 / MODERNSCIENCE.UZ
437
THE ENERGY EFFICIENCY OF BUILDINGS IN THE CITY OF NUKUS
Genjebaev Tursinbek Rustemovıch
A teacher of the Department of "Construction of Buildings and Structures"
of Karakalpak State University.
https://doi.org/10.5281/zenodo.8437517
Abstract.
The energy efficiency of buildings is a critical concern in the context of climate
change and the need to reduce greenhouse gas emissions. Roof structures play a pivotal role in
the energy performance of multi-storey residential buildings. This scientific article presents a
comprehensive study on the energy efficiency of roof structures in the context of the city of Nukus,
Uzbekistan. The research focuses on assessing the thermal performance, energy consumption, and
potential improvements in existing multi-storey residential buildings to enhance their energy
efficiency and reduce environmental impact.
Keywords:
Energy Efficiency, Roof Structures, Multi-Storey Residential Buildings,
Thermal Analysis, Nukus, Uzbekistan, Green Building Technologies, Retrofit, Climate Change,
Insulation, Reflective Roofing Materials, Green Roof Technologies, Thermal Mass.
ЭНЕРГОЭФФЕКТИВНОСТЬ ЗДАНИЙ ГОРОДА НУКУСА
Аннотация.
Энергоэффективность зданий является критической проблемой в
контексте изменения климата и необходимости сокращения выбросов парниковых газов.
Конструкции крыши играют решающую роль в энергетической эффективности
многоэтажных жилых домов. В данной научной статье представлено комплексное
исследование энергоэффективности кровельных конструкций в условиях города Нукус,
Узбекистан. Исследование сосредоточено на оценке тепловых характеристик,
энергопотребления и потенциальных улучшениях существующих многоэтажных жилых
зданий с целью повышения их энергоэффективности и снижения воздействия на
окружающую среду.
Ключевые слова:
Энергоэффективность, Конструкции крыш, Многоэтажные
жилые дома, Термический анализ, Нукус, Узбекистан, Технологии зеленого
строительства, Модернизация, Изменение климата, Изоляция, Светоотражающие
кровельные материалы, Технологии зеленой кровли, Тепловая масса.
The construction and operation of buildings account for a substantial portion of global
energy consumption and greenhouse gas emissions. Among the various components of a building,
roofs are particularly important in maintaining thermal comfort and reducing energy consumption.
In the city of Nukus, where extreme temperatures are common, understanding and improving the
energy efficiency of roof structures is crucial.
The analysis of the energy efficiency of roof structures in Nukus' multi-storey residential
buildings yielded several key insights and practical recommendations for improving their overall
performance: Enhance Roof Insulation: One of the primary findings of the study was the
prevalence of inadequate roof insulation in the surveyed buildings. It is recommended that building
owners and authorities invest in upgrading insulation materials and techniques to reduce heat loss
during the cold winter months. Options such as adding additional layers of insulation or using
advanced insulation materials like spray foam or rigid foam boards can significantly enhance the
thermal resistance of roofs. [1.73]
ISSN:
2181-3906
2023
International scientific journal
«MODERN SCIENCE АND RESEARCH»
VOLUME 2 / ISSUE 10 / UIF:8.2 / MODERNSCIENCE.UZ
438
Reflective Roofing Materials: In Nukus' hot and arid climate, the use of reflective roofing
materials can effectively reduce solar heat gain during the scorching summer months. Installing
cool or white roofing materials can help buildings stay cooler, decreasing the need for energy-
intensive air conditioning. Additionally, reflective materials can extend the lifespan of the roof and
lower maintenance costs.
Green Roof Technologies: Green roof systems, which incorporate vegetation and planting
on the roof surface, can offer multiple benefits. Green roofs act as natural insulators, reducing
temperature fluctuations and heat transfer. They also improve air quality and provide aesthetic and
recreational spaces for residents. Local authorities and building owners should consider promoting
and incentivizing the adoption of green roofs as a sustainable solution. [2.15]
Thermal Mass Utilization: The use of materials with high thermal mass, such as concrete
or clay tiles, was found to be effective in reducing temperature fluctuations. These materials can
absorb and store heat, releasing it gradually throughout the day or night. Utilizing such materials
in roof construction can help maintain comfortable indoor temperatures and decrease the need for
constant heating or cooling.
Retrofitting Existing Buildings: Retrofitting existing buildings with improved roofing
materials and techniques is a cost-effective approach to enhancing energy efficiency. In many
cases, it is more environmentally and economically sustainable than demolishing and
reconstructing entire structures. It is recommended that building owners explore retrofit options,
taking into account the local climate conditions and the specific needs of their buildings. Local
Building Codes and Regulations: Local authorities and policymakers should consider updating
building codes and regulations to mandate higher standards for roof insulation, reflective roofing
materials, and green roof technologies. By incorporating these requirements into building
practices, Nukus can ensure that new construction projects contribute to the city's energy efficiency
goals.
Public Awareness and Education: Educating building owners, architects, and residents
about the importance of energy-efficient roof structures and the benefits of these recommended
improvements is vital. Public awareness campaigns can encourage the adoption of sustainable
building practices and the implementation of these energy-saving measures.
In conclusion, the recommendations for improving the energy efficiency of roof structures
in multi-storey residential buildings in Nukus are multifaceted and tailored to the city's unique
climatic conditions and existing building stock. By implementing these measures, Nukus can
reduce energy consumption, lower greenhouse gas emissions, and create more comfortable and
sustainable living environments for its residents. This research paves the way for a more energy-
efficient and environmentally conscious future in the city of Nukus and serves as a model for
similar initiatives in other regions facing climate-related challenges.
The study's findings indicated that a significant number of multi-storey residential
buildings in Nukus were plagued by insufficient roof insulation. This deficiency was particularly
pronounced during the frigid winter months when maintaining indoor thermal comfort is of
paramount importance. The lack of proper insulation led to substantial heat loss, necessitating
higher energy consumption for heating purposes. The energy inefficiency resulting from this
inadequacy not only strained household budgets but also significantly contributed to increased
ISSN:
2181-3906
2023
International scientific journal
«MODERN SCIENCE АND RESEARCH»
VOLUME 2 / ISSUE 10 / UIF:8.2 / MODERNSCIENCE.UZ
439
greenhouse gas emissions. The implications of this issue underscore the urgent need for addressing
insulation deficiencies in Nukus' existing building stock. [3.62]
Solar Heat Gain: During the scorching summer months, the study revealed that buildings
with poorly designed roofs experienced excessive solar heat gain. This phenomenon increased the
demand for energy-intensive cooling systems, thereby adding to the overall energy consumption
of these structures. The consequences of this solar heat gain issue not only strained energy
resources but also diminished indoor comfort and productivity for occupants. Addressing this
problem is critical for reducing the energy demand in Nukus during the hot season and enhancing
the quality of life for residents.
Thermal Mass: The research demonstrated that the incorporation of materials with high
thermal mass, such as concrete and clay tiles, had a positive impact on reducing temperature
fluctuations within buildings. These materials proved effective in maintaining comfortable indoor
conditions by absorbing and storing heat, subsequently releasing it gradually throughout the day
or night. This thermal mass utilization was found to be a practical strategy for enhancing the energy
efficiency of multi-storey residential buildings in Nukus, particularly in a climate characterized by
extreme temperature variations.
Recommendations: To address the identified issues and enhance the energy efficiency of
existing multi-storey residential buildings in Nukus, the study puts forth several key
recommendations:
Improve Insulation: Retrofit buildings with enhanced insulation materials and techniques
to minimize heat loss during cold weather. Implement weatherization measures to seal gaps and
prevent air leakage in the building envelope. Conduct energy audits to identify insulation
deficiencies and prioritize improvements.
Increase Use of Reflective Roofing Materials: Encourage the use of cool or white roofing
materials, which reflect solar radiation and reduce solar heat gain. Promote the coating of existing
roofs with reflective, energy-efficient coatings to improve their solar reflectance. Establish
incentives and regulations to drive the adoption of reflective roofing materials in new construction
projects. [4.93]
Adopt Green Roof Technologies: Explore the implementation of green roofs on existing
buildings, as well as in new construction projects, to improve insulation, reduce heat gain, and
enhance urban greenery.
Develop local policies and incentives that support the adoption of green roof technologies,
taking into account local climate conditions and water management requirements.
These recommendations, when implemented comprehensively and strategically, hold the
potential to significantly reduce energy consumption, improve indoor comfort, and contribute to
the reduction of greenhouse gas emissions in Nukus. Moreover, they align with broader
sustainability goals and offer a pathway towards creating more resilient and environmentally
responsible urban spaces.
The findings of this study provide a solid foundation for further research and practical
implementation efforts aimed at enhancing the energy efficiency of roof structures in multi-storey
residential buildings. The following areas of future research are crucial for continuing the progress
in this field:
ISSN:
2181-3906
2023
International scientific journal
«MODERN SCIENCE АND RESEARCH»
VOLUME 2 / ISSUE 10 / UIF:8.2 / MODERNSCIENCE.UZ
440
The research presented in this scientific article underscores the importance of evaluating
and enhancing the energy efficiency of roof structures in existing multi-storey residential
buildings, especially in regions with extreme climatic conditions like Nukus. By implementing the
recommendations outlined in this study, the city can reduce energy consumption, lower
greenhouse gas emissions, and contribute to a more sustainable and resilient built environment.
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Dwaikat, L., & Ali, B. M. (2017). Retrofitting existing multi-story buildings to reduce
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Sayar, E., & Gultekin, E. (2019). A review of reflective and vegetative cool roofs for
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Sartori, I., & Hestnes, A. G. (2007). Energy use in the life cycle of conventional and low-
energy buildings: A review article. Energy and Buildings, 39(3)
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Federal Energy Management Program. (2019). Best Practices Guide: Energy-Efficient
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