The Influence of Thermal Bridges for Buildings Energy Consumption of “A“ Energy Efficiency Class

Abstract

thermal bridges make only 3 % of overall heat losses through envelopes, it is 122 kWh/m² per year. According to results of the analyse general specifications were made for designing building envelopes of "A" energy efficient class: _ The building of "A" class can be designed using ordinary solutions of linear thermal bridges, bigger heat losses through thermal bridges can be covered by increasing thickness of thermal insulating layers and using windows of better thermal behaviour but as a result the costs of building house increase too._ When effective solutions of linear thermal bridges are used, the same energy efficiency of the building can be reached using less thermal insulating layers, windows and doors of less thermal behaviour if the building of better energy characteristics is designed.

Patents Analysis of Thermal Bridges in Slab Fronts and Their Effect on Energy Demand

“…Levinskyte, Banionis and Geleziunas [40] analysed the importance of thermal bridges in highly efficient buildings in Lithuania, and the heat losses between the walls and the slab were among the most important joints. The junction between the slabs and the façades are one of the most complicated junctions in order to decrease the thermal bridge, since these junctions are consolidated building elements that should be studied during the design phase to be able to cause efficient constructive solutions.…”

“…However, there are no studies where the existing patents to reduce heat losses or gains through thermal bridges have been profoundy analysed. Thus, the objective of this work was to analyse the thermal behaviour of some existing patents describing construction solutions for slab fronts, focusing on these junctions due to their significant influence on heat losses through the façade [40]. For this purpose, five different solutions were chosen and applied on a real case study.…”

Modelagem De Pontes Térmicas Na Zona Bioclimática 2: Cinco Diferentes Abordagens

“…Os autores concluíram que as perdas de calor de um prédio projetado sem tratamento de pontes térmicas podem ser revertidas aumentando as camadas de isolamento térmico e utilizando janelas e portas de maior eficiência. Quando um prédio é projetado utilizando soluções eficazes para pontes térmicas lineares, a eficiência energética do edifício pode ser alcançada com menos camadas de isolamento térmico e portas e janelas com comportamento térmico inferior (14).…”

Comprehensive Study of the Microclimate Parameters in the Residential Building

“… analysis of thermal losses in buildings [3,4,9,14,18];  analysis of energy efficiency and flexibility of the air conditioning and heating [1,15];  creating and improving calculation methods, algorithms to achieve optimal and effective energy consumption during peak hours [7,8,13,17];  experimental research using modern materials and studying their impact on increasing energy efficiency of buildings [11,16];  developing heat indicators and energy efficiency class limits in buildings [2,5,10,12]. The research papers analyzed point to a lack of studies on the impact of the microclimate of residential buildings on their efficiency.…”