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In Canada, heating and cooling in buildings accounts for 16.5% of the total secondary end energy use in the residential sector. Improvements in the building enclosure can reduce the energy required to maintain the interior conditions through additional insulation. The thesis analyzes the effects of vacuum insulation panels (VIPs) within a residential building envelope. The VIPs were evaluated using a guarded hot-box at steady-state conditions. Paneling and encasing techniques were performed in the guarded hot-box to quantify the change in performance between the panel center and edges. The VIP thermal performance showed a 36% decay in performance at the edge, when compared to the center, proving the materials acts non-homogenous within the building envelope. The results indicate that VIPs encased in insulation offer high performance and minimize the risk of puncture. Also, a single profile simulation can provide reliable results of a wall assembly containing multiple non-homogenous layers.