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The majority of houses, schools, sports areas, libraries, hotels, etc. owners usually decide to set up decorative wrought iron balcony and windows barriers for houses. It has Durability and strength and affordable that is this type of distinctive mixture of features. When set up wrought iron balcony railings it may be certain that they'll final a life time with no unnecessary stress to complete lots of restore and maintenance feature. Therefore, decorative wrought iron barriers placed for protection, but some designs have led to numerous incidents. Falls from windows and balconies are the leading cause of fatal and nonfatal unintentional injury in the home setting , Falls are one of the highest causes of injury among children. The potential for serious injury is greater as the height increases; however the number of injuries from low-height falls is much greater, rowing concerns over safety in houses and schools have led many districts to consider the implementation of new, more stringent security measures. The use of barriers to bolster houses and schools securityoften as part of broader safety plans. Child safety barriers are intended to protect children from hazards and accident. Therefore, the problem of this study as: In many public areas barriers are needed to prevent falls. Usually these provide adequate protection for adults, however the protection provided for children is often very poor. Where the spaces between barriers and the openings in ornamental railings can present a hazardous invitation to hildren at play. The normal inquisitive child will climb his hands, feet, and head into openings which appear to be large enough to accommodate them, often with painfully disastrous results. Design aspects in relation to barriers needed to prevent falls of children. Design details that either facilitate or impair a young child's ability to climb. It is not always clear precisely what the physical design attributes were. The aim of this study was to analyse of barriers design for balconies and windows from decorative iron to improve the design of this barriers in the built environment, thereby safety to children. Be applied guards are required by most building codes to protect children from falling off the edges of balconies windows. So the research studied structure of elements of balconies originated from wrought iron, codes definitions window guards & balcony barriers metals and children's interaction with the built environment. Therefore, the results of this research show that when designing window guards & balcony barriers metals it must reduce the number of accidents involving falls by preventing the risk in specifications and design, manufacture and installation of safety barriers.

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Background: Metal bio-façades has an important impact on thermal behavior of buildings. They consist of green façade net & green façade panel in metal unit (living walls covered by climbing plants). This system is worked on lowering the temperature, good ventilation, CO 2 uptake, reduces the harmful rays. As well as it has environmental sustainability and low cost as compared to electrical conditions. Objectives: This study aims to study metal bio-façades adjacent to the wall and away from it, the factors affecting them and the comparison between them & bio-façades adjacent to the wall without metal structure. With taking into account the aesthetic side. Subjects and Method: This study was studied many factors which affected on metal bio-façades as materials, environmental changes, plant selection & Thermal performance and collective systems & sustainability. Practical studies: The researcher studied types of façades as bio-façades without metal structure, bio-façades with metal structure adjacent to the wall, and bio-façades with metal structure away from the wall 60 cm and compare between them. Results and discussion: All bio-façades can control the temperature of the building. The third façades is the best. It has a lot of advantage as extend along to the building, easy installation and assembly & clean, reduces thermal effects, allows movement of air force & formation and distribution of plants in a manner absolute, allows distributed at different levels, easy maintenance., It must finish the walls to maintain the aesthetic appearance, Can be moved from place to place and distance from the wall as a result of the disappearance of the insects inside it is difficult. Conclusion: Metal bio-façades are very important for hot areas to improve the weather around buildings. Moreover, they had beautiful design, good health and comfort for human body.