joints

Recommendations for the optimal and lasting sealing of joints from a hygro-thermal perspective

Submitted by on Thu, 01/28/2021 - 15:58

Purpose of the work

Windows according to the Passive House Standard 2016 require a ten times more airtight airtightness class (EN 14351) [1] than around 1990. The installation layer of the windows is constantly moving closer into the area of the insulating layer with possibly moisture-sensitive materials. Therefore, joint sealing of construction and connection joints must also be evaluated by applying parameters related to building physics like thermal conductivity, diffusion behavior, heat and moisture storage capacity, and the capacity for movement absorption.