LOGGIAS CONVERTED INTO WINTER GARDENS, SLOVAKIA

DESIGN PROBLEMS (case study under development)

Roman Rabenseifer, Slovak Technical University, Bratislava, Slovakia

INTRODUCTION
Many single owners of apartments in pre-fabricated panel buildings (but not only) re-build their loggias into winter gardens. They usually hope to fulfil two main expectations - extension of living space and lowering of noise coming from the streets into living rooms. In order to achieve these two main aims it is necessary to design winter gardens properly. Risk that can endanger the in-door environment quality is first of all the water condensation at internal winter garden surfaces. This study shows the various cases of winter garden design and would like to predict their behaviour. First case is the single independent winter garden without any co-ordination with neighbours, second and third ones show joint and co-ordinated attitude, when more winter gardens are above each other. All cases were examinated in terms of internal surface temperatures (number of days per year when condensation occures), energy consumption of living room behind the winter garden and from the living comfort point of view.

COMPUTER MODEL

SINGLE INDEPENDENT WINTER GARDEN
This is the case when only one single inhabitant decides to make from his loggia winter garden.

  • Compter model divided into zones

  • Surface attributions for the first zone - winter garden

  • Surface attribution for the second zone - living room

    • RESULTS

  • Interior air temperatures for both examinated zones

  • Interior surface temperature of winter garden glazing - considerable low temperatures, which cause water condensation and therefore also, can initiate window frame and surrounding surfaces damage

    • THREE WINTER GARDENS ABOVE EACH OTHER

    In this case is the approach of single inhabitants co-ordinated in order to make the most possible use of new designed measures

    Old state - loggias without glazing

    New state - loggias turned to winter gardens

    REFERENCES
    H. Marquardt: Tauwasserausfall in Wintergaerten vor Geschosswohnungen, Ernst und Sohn Verlag, Bauphysik 15, Heft 6, 1994