Comparison of thermal insulation performance of vacuum insulation panels with EPS protection layers measured with different methods

For reducing the energy use of buildings, application insulation materials can be a possible solution to improve efficiency. However, with continuously tightening regulations, thicker and thicker insulations should used (e.g., up to 20–25 cm in Hungary about 40–50 Nordic countries) to fulfil directives. In past decades, developmental research started focus on both decreasing the thickness decreasing thermal conductivity parallels. With this direction, the investigations new type took place. The having thermal conductivity less than 0.020 W/mK spread over. These are so-called super insulation materials. Besides Vacuum Insulation Panels (VIPs), aerogel-based belong group, too. This paper will present laboratory tests executed two altered types protected Insulation Panels: one side 2 VIP, also called Sandwich (VIS). first one, ‘‘A” contains 20 mm thick laminated fumed silica, covered 10 expanded polystyrene side, while ‘‘B” was where silica core was packed between EPS slabs. Firstly, performance investigated by guarded hot-box method for U-value, samples were placed solid brick wall. Furthermore, VIPs tested with Hukseflux heat flux plates. To reveal applicability limits caused bridges infrared thermography images (IR) taken, too. From measurement results, theory was formed regarding flow directions inside encapsulated panels. current article emphasizes the equivalent assessment protection vacuum insulation states that using at least, 70% reduction reached Uvalue compared value solid brick Moreover, points out EPS protection layer sides VIP has promising effect bridges. Furthermore, slabs results thermal conductivity.