Vacuum insulation panels in construction solutions for energy efficient retrofitting of buildings. Two case studies in Spain and Sweden
Author/s
Uriarte, Amaia; Garai, Iñigo; Ferdinando, Andrew; Erkoreka, Aitor; Nicolas, Olatz; [et al.]Date
2019-08Keywords
Vacuum insulation panel (VIP)
Façade retrofitting solutions
Nearly zero energy buildings (NZEB)
Thermal transmittance
Heat loss coefficient (HLC)
Construction challenges
Abstract
Vacuum insulation panels (VIPs) represent a huge opportunity to achieve nearly zero energy buildings, especially in the retrofitting of existing buildings. VIPs can be applied in conjunction with façade cladding elements, considerably reducing the heat losses or gains from the building by means of very slim wall construction systems or retrofit solutions. However, the fact that VIPs cannot be cut on-site, can be easily damaged during their handling, installation and use and have an envelope that can cause thermal bridging in the junction between panels or when combined with other materials, has hindered their penetration in the construction market. This paper presents two innovative façade retrofitting solutions, a rear ventilated façade and a stud mounted internal solution, that have tackled all these issues and provide thermal transmittances of 0.28 and 0.14 W/m2 K in relatively slim insulation systems of 10 cm widths. Solutions have been installed on the entire façade of two existing ...
Type
article