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The building envelope is known to be an important aspect of design and engineering of ultra-low energy buildings. The facade (building skin) could have the potential to redirect and filter daylight, influence frontal external wind intensity, provide natural ventilation, manage heat transfer, enhance occupant well-being, and create visual and physical connections between the inside and outside. The advances in facade technologies have been triggered in part by higher energy prices, stricter building codes, and higher occupant and owner expectations regarding the quality of the finished construction. This paper provides a comparative assessment of the effect of redesigning an existing building facade and other building improvements. It assesses the impact on external environmental conditions (wind speed and pressure) by employing computational fluid dynamics. The impact of these changes on occupant satisfaction was also gauged. It is hoped that this analysis will provide a framework for assessing benefits of improved facades in other buildings and applications

There is a group of building structures having facade rendering as surface finishing, except for a large family of glazing facades and facing facades. This group of structures puts the finishing touches to our everyday space in architectural terms considering not only the colours, but also various facade rendering finishes structure. On the contrary, in practice there are different kinds of facade rendering disorders. In terms of generation of facade rendering disorders, facades rendering sloughing as well as cracks formation within the facade rendering or in blocks and fittings joint areas, which can cause extensive defects, are the biggest problematic issues.

Renovation of the building stock is an acknowledged issue in the building industry. Constructional and technical requirements on residential buildings have significantly changed, as well as demands on flats equipment and aesthetic quality of the building and surrounding urban space. Several years "boom" of large-scale housing renovation in Slovakia has resulted in colour, shape and material diversity of residential buildings facade. The paper presents selected aspects of residential buildings renovation, related to their facade components. An important part of the renovation design should be prevention of defects, particularly of insulation systems. Several years after buildings insulation first colonies of microorganisms form on the surface of insulated facades and results in the formation of “green skin” on building façades. It has been observed that up to 80 % of insulated buildings are affected by this greening. This microbial colonization of buildings causes aesthetic problems and can lead to degradation and spalling of the coating [1].

In today’s China, with the development of economy, the urban construction is also very rapid. However, the high speed development has also created many problems. For example, the urban public building layout is unreasonable, the quality of public building is not high. Therefore, many public buildings will be a state of being removed. In order to lengthen the building’s life, Renovation of the building became the topic which the society pays attention together. The renovation of the building has many ways, Transform the building’s facade can change effectively the building’s image and the cost is low. Therefore this article sets up urban public building’s facade transformation to take the research aim, and put the focus to the architectural style.

A good building needs the perfect functions and construction techniques besides beautiful exterior view. The facade opening is the main means for building daylighting and ventilation. The quantity, size and configuration of facade openings can change the figure of buildings. Facade opening must be designed with architectural designing simultaneously. This way is beneficial for the unification of building function and aesthetics.

Glass is remarkable material and its functionality is significantly enhanced when it is processed or altered to provide added intrinsic capabilities. The overall performance of glass elements in a building can be further enhanced when they are designed to be part of a complete façade system. Finally, the façade system delivers greater performance to both the owner and the occupants of the building. A limited number of facade technologies or combinations of technologies can be evaluated in a field test program, for the reason of both resource constraint and the practical use. The specific method can be used to determine what technologies are to be selected for the research. It based on technical and market objectives, surveys of commercially-available technologies, manufacturers, architects and engineers, utilities, and other stakeholders.

The use of intelligent double-skin facades, sometimes referred to as "double facades", is attracting increasing amounts of interests from the architects throughout the world, due to the characteristics such as ecology, durability, use of natural resources, etc. This paper is written from the architectural history point of view, and gives a brief description about the development of the intelligent double-skin façade systems, from the old storm windows to modern double-skin systems, and suggests further research possibilities in this field.