Abstract
This paper presents the process of effective selection of building elements for renovation important for energy saving in buildings. A large part of energy is lost in non-effective buildings. Therefore, in renovation of buildings, it is important to select effective structural improvements. Building insulation could not only save energy but also time, money and materials, which means that different objectives expressed in different units have to be fulfilled. Although different methods exist for the application of Multi Objective Optimisation, MULTIMOORA, which is composed of three sub-methods – Ratio System, Reference Point Method that uses ratios from the ratio system, and the Full Multiplicative Form – was preferred. Consequently, different solutions for building envelope renovation were ranked by MULTIMOORA as applied for masonry buildings from the Soviet period.
Highlights
This paper discusses the traditional way of construction specific to the Soviet period
One of the most difficult tasks, during the building audit is ensuring a proper design of thermal insulation for building envelope
The method presented in this article, called MULTIMOORA, optimises building envelope improvements concerning insulation
Summary
This paper discusses the traditional way of construction specific to the Soviet period. It is important to identify the existing state of walls, roof, floors, windows, doors and other building elements, as well as technical characteristics, i.e. materials, thickness of structures and orientation in respect of compass points (Tupenaite et al 2010; Pasanisi, Ojalvo 2008). Such assessment of existing structures and complex exploration of building characteristics helps deciding on partitions that require further improvement and identifying changes that would be effective.
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