Use Of Roofs Research Articles

The Design of Wedi Awu Beach Resort Hotel in Purwoadi Village, Malang Regency, East Java

Purpose: The purpose of designing a resort hotel is to create a resort hotel that meets the facilities and infrastructure supporting the needs of tourists, especially the needs of sports tourism at Wedi Awu Beach. In addition, it is to create a resort hotel that uses East Javanese cultural characteristics such as the use of roofs and ornaments of Banyuwangi traditional houses into the design of resort hotels.
 Research methods: The research location is at Wedi Awu Beach, Balearjo Hamlet, Purwodadi Village, Tirtoyudo District, Malang Regency, East Java. The design area has an area of 5.30 Ha. The theme used is vernacular architecture. The design of Wedi Awu Beach resort hotel in Purwodadi Village, Malang Regency uses several methods such as primary data collection methods, secondary data collection methods, analysis methods and synthesis methods.
 Findings: Malang Regency has many very beautiful tourist destinations and attracts domestic and foreign tourists to visit. Seeing the development of the number of tourists visiting Malang Regency, the Malang Regency Government began to pay attention to the potential of tourist destinations, especially in the southern part of Malang Regency, namely Wedi Awu Beach. Implication: Wedi Awu Beach was listed as an area that has proven successful in maximizing the potential of beach tourism and is able to hold night surfing events attended by dozens of surfers from within and outside the country. This potential is not supported by lodging facilities such as hotels that meet the needs of tourists, especially sports tourism needs.

The Potential Roles of the N and P Supplies on the Internal Browning Incidence in Sweet Cherries in the Southern Chile

Southern Chile has experienced a strong increase in sweet cherry production in recent years. However, there are climatic gaps that negatively reduce the fruit quality and yield of exportable fruit, such as the high incidence of rains during flowering and pre-harvest. The use of roof covers has become an agronomic solution that offers protection from weather events, such as rain, which will significantly increase the exportable fruit. However, the use of plastic covers can cause negative impacts on the fruit, such as a loss of firmness and acidity. Currently, the incidence of internal (pulp) browning has reduced the quality of cherries produced in Southern Chile, although research on this subject is largely under explored. Some studies reported that a high content of antioxidants in the fruit, both phenolic and non-phenolic (e.g., ascorbic acid), could reduce the incidence of the physiological disorder of browning. The soils of Southern Chile are characterized by the high content of organic matter, which implies high levels of available nitrogen (N) and a high phosphorus (P) content. Some studies, however, have shown that fertilization with N and P would significantly improve the postharvest quality, shelf life, and the accumulation of antioxidant compounds in fruits, even better than other strategies, including selenium and chitosan applications. However, there needs to be more detailed information on this aspect of the sweet cherry fruit production. The quality attributes and postharvest life of cherries are closely associated with the antioxidant levels of fruits, which could be related to either the soil acidity level of the Chilean Andisols or the levels of P and N in soil or plant tissues. Therefore, the objective of this review was to discuss the role of the N and P supply on the internal browning incidence in sweet cherries and relate it to what is known in other fruits.

Investigation of the causes of land surface temperature changes in Khorramabad

development of remote sensing applications has led to their use in a wide range of environmental studies. One of these aspects is urban studies and especially land surface temperature. In this study, the changes in land surface temperature in the Khorramabad city in Iran were investigated and the causes of land temperature changes were investigated. For this purpose, Landsat satellite images were processed in four periods of 2000, 2007, 2014 and 2021 and were recovered using a single-channel surface temperature algorithm. Temperatures were high in 2000 due to the type of roofs of buildings and the dirt around the city. Decreased in 2007 and 2014 due to the use of roofs that reflect light. In 2021, due to severe manipulations around the city and the destruction of vegetation and change it into built-up bare soil cover caused the temperature to rise again in the suburbs.

Potential for Net-zero Energy in an Artificially Ventilated Single-family Dwelling Unit

Net-zero energy buildings are buildings that consume less energy than other similar buildings, producing as much energy as it uses or more, from a renewable energy source. Buildings are, without a doubt, one of the key contributors to energy-related emissions. It is important to design buildings that need less energy. Using DesignBuilder, this research explores the potential for net-zero energy in an artificially ventilated single-family dwelling unit in Kuala Lumpur Subang, Malaysia. To achieve net-zero energy five steps are taken; step one involves determining the most energy-efficient glazing, step two involves investigating the most energy-efficient wall material, the next step considers the best window-to-wall ratio, the fourth includes the use of external shading devices and the final step introduces the use of roof installed solar panels. One of the key findings was that shading either through external shading devices or through more efficient glazing reduced the overall energy use and that as the energy needed for cooling reduced as a result of shading the energy needed for lighting slightly increased. The research also revealed that the energy consumption reduced as the wall insulation increased and that bricks/block walls were more energy-efficient than wooden walls without insulation. During the third phase of the research, findings revealed that the energy efficiency of the walls and the windows were the determining factor for which window-to-wall ratio was best. In all, net-zero energy was achieved by reducing the energy consumption by 73.4% and by generating more energy than the building consumes from photovoltaic cells.

Energy Savings Potential of Semitransparent Photovoltaic Skylights under Different Climate Conditions in China

Due to the limited available envelope area, height-constrained buildings integrated with photovoltaics require that more attention be given to the effective use of roofs. Thus, it is crucial to study the energy savings potential of previously neglected semitransparent photovoltaic (STPV) skylights. In this paper, the net energy consumption (NEC) of a room with STPV skylights and energy superiority compared to a reference window were investigated. The energy savings potential was then calculated for five representative cases located in different climate zones and daylight zones, according to the mandatory codes to be implemented in April 2022. Through a global sensitivity analysis, the extent to which each component of the NEC affects the energy savings potential was evaluated. The results indicate that STPV skylights exhibit promising energy savings potential in China. In temperate zones with excellent daylight conditions, an energy savings potential of 0.21 to 2.55 can be achieved, while the maximum energy savings rate (ESR) for the other four cases ranges from 0.52 to 1.1. The effect of electricity power generation (EPG) on the energy savings potential is most pronounced, except for that of STPV skylights on sloped roofs in hot summer and cold winter zones with poor daylight.

Sustainability of green walls

Not long ago, the sustainability of buildings was not taken as a design priority, although it was considered to some extent. The required level of sustainability has risen sharply in recent years, buildings are becoming more self-sufficient, environmental friendly and greener. Towards more attention to green sustainable alternatives in architecture, new solutions for sustainability began to be sought, such as the use of vertical and horizontal surfaces of the building for green facades, the use of roofs for roof greenery, as well as introduction of greenery into building in the form of green walls. Along with the introduction of greenery into the interior comes the new necessary technical solutions, thinking about the overall green wall with respect to the indoor environment and building itself as well as new possibilities of using rainwater, beautify the interior, improving the air etc. However, it is important to perceive a green wall as a living element that must be sustainable, and this is what this article is about. The article focuses on the green walls from the point of examining the available information on this subject in domestic as well as in foreign sources. The results of this article can help to improve understanding of various green walls from different perspectives and compare their view on the green wall in terms of sustainability. The paper helps designers and researchers to orientate in the given topic to create an overview of the different options of the current greenery systems.

Smart Solutions for Sustainable Cities—The Re-Coding Experience for Harnessing the Potential of Urban Rooftops

Urban rooftops are a potential source of water, energy, and food that contribute to make cities more resilient and sustainable. The use of smart technologies such as solar panels or cool roofs helps to reach energy and climate targets. This work presents a flexible methodology based on the use of geographical information systems that allow evaluating the potential use of roofs in a densely built-up context, estimating the roof areas that can be renovated or used to produce renewable energy. The methodology was applied to the case study of the city of Turin in Italy, a 3D roof model was designed, some scenarios were investigated, and priorities of interventions were established, taking into account the conditions of the urban landscape. The applicability of smart solutions was conducted as a support to the review of the Building Annex Energy Code of Turin, within the project ‘Re-Coding’, which aimed to update the current building code of the city. In addition, environmental, economic, and social impacts were assessed to identify the more effective energy efficiency measures. In the Turin context, using an insulated green roof, there was energy saving in consumption for heating up to 88 kWh/m2/year and for cooling of 10 kWh/m2/year, with a reduction in greenhouse gas emissions of 193 tCO2eq/MWh/year and 14 tCO2eq/MWh/year, respectively. This approach could be a significant support in the identification and promotion of energy efficiency solutions to exploit also renewable energy resources with low greenhouse gas emissions.

A Preliminary Study on Promoting the Use of Solar Energy Roof in Residential Building in Jinan

The excessive development and utilization of traditional energy makes the energy fuel (oil, coal, etc.) on the earth tend to be exhausted. At the same time, the pollutants discharged in the process of use have caused serious harm to our living environment, resulting in increasingly acute environmental problems such as climate warming and air pollution. Solar energy is inexhaustible clean energy. At present, the use of solar energy in Jinan residential buildings mainly focuses on the installation of solar water heating system in the south facade of the building, while the use of roof of residential buildings is very little. There are two ways to use solar energy on the roof of residential buildings: photovoltaic power generation and light heat conversion. Through these two ways, solar energy is converted into electric energy and thermal energy. There are many favorable factors to promote the use of solar roof in Jinan residential building. First of all, Jinan has a long sunshine time. Secondly, the usable area of Jinan residential building roof is large. In addition, the solar energy roof of Jinan residential building has a double energy-saving effect. Finally, the solar energy roof has little adverse effect on the appearance of the residential building in Jinan.

PERUBAHAN PAON PADA RUMAH TRADISIONAL DI DESA BATUAN SUKAWATI

Bali is an area famous for its million beauty and charm. The beauty of nature, the hospitality of the people and the sublime Customs and Culture are very valuable assets for Bali in particular and Indonesia in general. Of all the beauty and uniqueness, one thing that is important to note is about Balinese Traditional Architecture which is based on culture and breathes Hinduism. In the study of the construction of Balinese buildings, especially Paon or kitchens, this was carried out to understand more deeply some of the traditional Balinese architectural knowledge that approaches the truth, the direction of development, and the high noble values of our ancestral heritage to be strong and strong. a research was conducted on what changes occurred in the Paon building in the village of Batuan, Sukawati. So that it can be expressed to add to the nation's cultural treasury as a material for information and a comprehensive picture for the Balinese people in particular. The formulation of the problem raised is: How does Paon change in a traditional house in Batuan Village, Sukawati. This study uses an inductive approach to the concept formulated from several elements including: field observations and interviews with experts / experts. It can be concluded: The shape of the Paon building has not changed, but only in terms of materials have changed over time, such as the use of roof covering materials, which all use reeds to become tiles.

Simulating the Hydrological Impact of Green Roof Use and an Increase in Green Areas in an Urban Catchment with i-Tree: A Case Study with the Town of Fontibón in Bogotá, Colombia

Urbanization has produced various social, environmental, and hydrological impacts, such as reduced biodiversity, increased urban temperatures, ecosystem degradation, air and water pollution, changes to hydrological processes, groundwater recharge alterations, increased prevalence of floods, vegetation removal, and potential increases in unstable soils. Finding solutions to mitigate the impacts of urbanization is of vital importance in the development and planning of cities, and particularly so for developing countries. One strategy gaining momentum is the use of green roofs and larger green areas (greater green cover under trees, with the purpose of increasing the permeable area) for runoff control. In this study, a simulation was carried out using the i-Tree Hydro software that involved the urban basin in the Fontibón area of Bogotá, Colombia, with the aim of observing the hydrological benefits of trees, green areas, and permeable zones. Five scenarios were proposed in which green roof coverage was implemented (20% and 50% increases in green areas in Scenarios 1 and 2), coverage under existing trees was enhanced (50% and 100% increase in Scenarios 4 and 5), and finally a complete removal of green zones in Fontibón was simulated (Scenario 3). The town is relatively susceptible to a reduction in its existing green areas, with an increase in total flow of more than 50% for one scenario considered. Thus, an increase in the permeable coverage under trees (50% and 100% increased coverage under existing trees) provided the best strategy for mitigating the impacts of urbanization by reducing the total, maximum, and average impervious flow by 3%, 4%, and 8%, respectively. Finally, an increase in permeable zones corresponding to plants was proposed via the implementation of green roofs. However, this strategy showed a response to the reduction in the lowest total flow at 1%.

Use of roof as roost of Eumops perotis (Molossidae: Chiroptera) in southeast Brazil

ABSTRACT The bat Eumops perotis (Schinz, 1821) is broadly distributed in the Americas. Studies on its biology are still scarce and the few studies available are relatively outdated. In the present study, we describe the biology of Eumops perotis in an artificial roost in the municipality of Pindorama, State of São Paulo, southeastern Brazil, which was monitored for 12 months. We captured 50 individuals; 43 adults (34 males and 9 females) and seven juveniles (three males and four females). Nineteen adults were recaptured throughout the year (15 males and four females) during samplings. Males were ~33% heavier than females. Males remained in the roost throughout the year, while females were absent in June, July, and August. The presence of males with scrotal testes and pregnant females from July to November and the presence of pregnant females and pups from February to April suggest monoestry for this colony. Inside the roost, the behavior of E. perotis was similar to other molossid bats (e.g. contact posture, formation of groups, and presence of isolated males). During winter, the individuals of this colony consumed mostly coleopterans, but their diet also included orthopterans and lepidopterans, mainly in the summer. Therefore, this study contributes to increase the knowledge of the natural history of this species in the Neotropical region.

Relative proportions of E. coli and Enterococcus spp. may be a good indicator of potential health risks associated with the use of roof harvested rainwater stored in tanks

A total of 285 water samples were collected from 71 roof harvested rainwater tanks from four villages in different provinces over a two-year (2013-2014) period during the early (October to December) and late (January to March) rainy season. Water quality was evaluated based on Escherichia coli, faecal coliforms and Enterococcus spp. prevalence using the IDEXX Quanti-Tray quantification system. Real-Time PCR was used to analyse a subset of 168 samples for the presence of Shigella spp., Salmonella spp. and E. coli virulence genes (stx1, stx2 and eaeA). Escherichia coli were detected in 44.1% of the samples, Enterococcus spp. in 57.9% and faecal coliforms in 95.7%. The most prevalent E. coli concentrations in harvested rainwater were observed in 29.1% of samples and 22.5% for Enterococcus spp. and, were within 1-10cfu/100ml and 10-100cfu/100ml, respectively, whereas those for faecal coliforms (36.6%) were within 100-1000cfu/100ml. On average 16.8% of the samples had neither E. coli nor Enterococcus spp. detected, while 33.9% had only Enterococcus spp. and 23.7% had only E. coli. E. coli and Enterococcus spp. were detected together in 25.5% of the samples. Evaluation of samples for potential pathogenic bacteria showed all tested samples to be negative for the Shigella spp. ipaH gene, while five tested positive for Salmonella ipaB gene. None of the samples tested positive for the stx1 and stx2 genes, and only two tested positive for the eaeA gene. These findings are potentially useful in the development of a simplified risk assessment strategy based on the concentrations of indicator bacteria.

Spatial and economic conditions of the solar energy use in single-family houses - a case study

The provisions in the European and Polish law oblige to increase the use of energy obtained from renewable energy sources. In order to meet these demands, it is necessary to take into account the singlefamily housing sector that has a significant energy potential. Among the unconventional heat sources that have gained the highest popularity, it is worthy to note installations using solar energy for instance to prepare DHW (domestic hot water) or be used in buildings’ heating. It is also worth mentioning that this type of technical solutions can be successfully used as well in new as modernized old residential buildings. Our paper discusses the problems associated with planning of solar installations with flat and vacuum solar collectors mounted on the roofs of the single-family buildings. During the analysis we used GIS&T technology, multi-criteria decision support as well as detailed spatial data obtained by modern remote sensing techniques including airborne laser scanning. The proposed methodology and tools were used on the example of the selected part of a single-family housing estate located in Bialystok. The research focused on issues of the multi-criteria assessment of the assembly of use of roofs for solar collectors, including data on a solar potential, exposure, slope, surface and roofs’ shape. Additionally, we took into account roof zones on being in a shadow caused by roof elements, roof infrastructure and high vegetation. Based on the simulation results we analyzed possibility of plate and tube solar collectors’ application that would provide warm water for 1-4 habitants of houses. The results of our research showed high utility of the proposed methods in the field of spatial and economic assessment of the use of solar collectors in the single-family housing sector.

Extra-articular subcutaneous “inverted king post-truss” ligament reconstruction for severe swan neck deformity (snapping finger)

A swan neck deformity (SND) can be well tolerated for a long time, until the appearance of a disabling “snapping finger”. In its most advanced condition, the other hand is needed to initiate finger flexion. We propose a technique of extra-articular, subcutaneous ligament reconstruction with an “inverted king post-truss” configuration use in roofs and to reinforce railway bridges. An artificial ligament (MaxBraid™ polyethylene surgical suture, 5 metric, Biomet) makes a figure of eight between transosseous tunnels in the proximal and middle phalanges, crossing over top of the A3 pulley. We limited our series to severe SND cases with “snapping finger”. We excluded isolated SNDs without functional disability. Eleven patients were followed for 3.4 years on average. The cause was an acute injury 8 times (7 balloon accidents), rheumatoid arthritis 2 times and overuse once (saxophone). Only one case was a poor outcome of mallet finger. The 11 patients were reassessed by a telephone survey. Two patients underwent reoperation: one for a ligament rupture, the other one for a knot that became untied. One patient had a suspected late rupture but without recurrence of the disabling snapping finger. The 11 patients considered themselves improved by the intervention. Nine patients did not notice any difference between their operated finger and the contralateral side. Return to manual activity was possible once the skin had healed. The technique is simpler than the spiral oblique retinacular ligament (SORL) reconstruction technique described by Thomson-Littler and also less demanding because it does not involve the distal interphalangeal joint. It requires only a short incision in the volar crease of the proximal interphalangeal joint. No tendon or ligament is sacrificed. Neither postoperative immobilization nor lengthy physical therapy is needed. Complications can be avoided by selecting the appropriate artificial ligament material and careful knot tying.

Developing House of Quality by integrating top roof and side roof matrices and service TRIZ with a case study in banking services

Purpose – The purpose of this paper is to propose an innovative solution for prioritizing “Whats” and “Hows” and resolving contradictions among “Whats” in House of Quality (HoQ). Design/methodology/approach – Prioritization of the influence of the weights in correlation matrices of “Whats” and “Hows” (i.e. top roof and side roof) of HoQ and integration with TRIZ contradiction matrix have been studied. Explained through a case example of banking services, initially, contradictions among requirements of 180 customers have been identified by side roof matrix and then, the 12 by 12 non-technical contradictions matrix of service TRIZ have been used to suggest principles for resolving contradictions. Findings – Findings imply that the use of roof and side roof weights can influence the priorities of “Whats” and “Hows.” Research limitations/implications – Findings may assist researchers and practitioners in resolving ambiguity of the voice of customers, which in turn make the results of HoQ more accurate. Originality/value – A new approach has been proposed in this paper for resolving contradictions of customer requirements by service TRIZ and adjusting priorities of “Whats” and “Hows” in HoQ.

Roadmap for improving roof and façade windows in nearly zero-energy houses in Europe

Windows are central for the development of liveable nearly zero-energy homes and require careful consideration. Various studies have indicated that the effect of windows on energy consumption may change significantly with improved building insulation levels. Current guidelines on windows may therefore not apply in very well-insulated buildings, and more up-to-date information is needed about window solutions that are appropriate for the new conditions. This study maps the effect of multiple combinations of window size and basic glazing—and frame properties on energy, daylighting and thermal comfort in nearly zero-energy houses located in the European cities Rome and Copenhagen. The aim was to identify options that can support the easy and robust design of future homes with typical use of roof and façade windows. Hourly daylight levels were calculated in DAYSIM, while space heating demand and operative temperatures were calculated in EnergyPlus. The results support previous findings on the limited ability of nearly zero-energy buildings to utilise solar gains. It was found that U-values are becoming increasingly important for the energy performance of windows. The paper sketches the increased flexibility and related possibilities that may appear with improved roof window frame constructions and glazing U-values far lower than currently standard levels.

Aprovechamiento de terrazas en campus universitarios como cubiertas verdes

Este artículo presenta una alternativa de aprovechamiento de cubiertas en los últimos niveles de las edificaciones de campus universitarios a manera de cubiertas verdes, como opción ambiental y constructiva ante el problema de la ausencia de espacios para el ocio e interacción con la naturaleza, por parte de la comunidad educativa. Esta alternativa forma parte del proyecto de investigación Diseño de cubiertas verdes ecoeficientes y ambientalmente sostenibles para campus universitarios, desarrollado por el autor, en sus estudios de maestría en “Derecho para el urbanismo y desarrollo territorial sostenible” de la Universidad de Santander. Así, se ofrece en primer término, la formulación del problema; en segundo lugar, se exponen los resultados de estudios preliminares realizados para un campus universitario muestra como son: levantamiento topográfico y arquitectónico, estudios de suelos, necesidades de espacio y estudios legales; para finalizar con el proceso constructivo de la cubierta verde y las conclusiones correspondientes.

A net zero emission concept analysis of a single-family house

Abstract The paper aims to investigate whether it is possible to achieve a net Zero Emission Building (nZEB) by balancing emissions from the energy used for operation and embodied emissions from materials with those from on-site renewables in the cold climate of Norway. The residential nZEB concept is a so-called all-electric solution where essentially a well-insulated envelope is heated using a heat pump and where photovoltaic panels (PV) production is used to achieve the CO 2eq balance. In addition, the main drivers for the emissions are revealed through the CO 2eq calculation for a typical Norwegian, single-family house. This concept building provides a benchmark rather than an absolute optimum or an architectural expression of future nZEBs. The main result of this work shows that the criteria for zero emissions in operation (ZEB-O) is easily met, however, it was found that the only use of roof mounted PV production is critical to counterbalance emissions from both operation and materials (ZEB-OM). The results show that the single-family house has a net export to the electric grid with a need for import only during the coldest months. In the next stage of the work, the concept will be further optimised and the evaluation method improved.

The Detection Research of Roadway Roof Strata Structure in Coal Seam

Through the structure instability theory analysis of the coal roadway roof ,the author concluded that mechanical properties of rock, location, thickness and thickness ratio is the main factor affecting the instability and failure of rock structure. Capitalize on the roof caving hidden danger detector developed by the China university of mining and technology to synchronize, continuous and intensive monitor the rotational speed, thrust for synchronization and thrust. Based on the record ,the author inferred the coal seam roof lithology and rock structures of the different drilling location. Engineering practice shows that the use of roof caving hidden danger detector to identify lithology of strata and structure is in good agreement with the core test values. Coincidence rate reached 95.14% and the recognition effect is quite good.

Stability Analysis on the Structureof a Multipurpose Gymnasium

This study focused on the structure of a multipurpose university gymnasium. The lower part of the structure is reinforced concrete frame structure and the top is steel roof truss, and the roof use radiation truss brace shell structure. In this paper, buckling analysis of the separate steel roof and the overall structure are investigated under the basic or combined load cases, and the stability of the structure is verified. This study provides a valuable reference for the design of similar structures.