The building envelope is a key aspect in the design, in terms of the external climatic factor that is driven upon the internal environment.
envelope are determined by external climatic drivers at given locations. Having a temperate maritime location, UK has better opportunity to significantly reduce the energy requirements of any given building. Elements of a passive solar design can be done in the south side of any given building or structure that is super insulated, while the super insulated approach would be a feature of the north side of a passive solar building. Energy efficiency that is improved can be used to help make a case for refurbishment of a building envelope. A very common building envelope element to be upgraded is glazing. Glazing is utmost generally accepted in energy terms because it replaces perfectly serviceable even in thermally inefficient steel frames. However, double glazing normally provides additional non-energy related benefits such as reduced risk of condensation. Moreover, if the glazing of frames needs replacement, you need to consider the over-cost of high performance system in comparison to the base-case option courtesy of the Building Regulations. Considerations must be given to higher performance glazing such as the low emissivity (low -E), inert gas- filled and triple glazing systems. Windows are sources of ventilations or they could also cause heat loss in the interior part of any given building. Thus, certain measures can be done to illuminate these factors. For the purpose of ventilation, windows can be located on the east side or west side of any given building, The manner of location would contribute to the ventilation or it could add to the needed heat inside the building. This is in terms of the solar heat that the building needs to contain or reduce. The roofing of any building needs proper insulation from the solar heat that enters the building thru the roof. Materials for insulations are readily available in the market as per construction material. The cost of the insulation panels would vary, but the function remains the same. The ground floor of any structure of building normally absorbs moist from the soil or earth material underneath. It would be a very practical move if we plan or decide on what materials for the floor would best suit the location of the building.
A programme for an effective planned maintenance is very essential to ensure the preservation of the building envelope and the weather proofing of the building. In the establishment of a planned maintenance regime, the first step is to draw a schedule of envelope types, materials and manufacturers/suppliers. Estimated area, installation date, warranty information, contractor's information, records of repair and inspections are a few of the useful additional information in the programme to be followed. Gillesana(1997)Accordingly, regular inspection of the planned maintenance program is very vital. Gutters must be regularly cleared (more often in autumn to prevent blocking of rainwater, hoppers and downspouts which can lead to water spillage onto the envelope fabric. Expansion joints, mastic seals, flashings, conditions of pointing,