Energy Modeling and Analysis

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Energy and hygrothermal modeling programs are quantitative tools that assist designers to evaluate both the technical and financial viability of a proposed building envelope retrofit or new envelope assembly for a new building project. The data obtained from the analysis allows designers to more effectively communicate recommendations to building owners and managers. The information is used to identify optimal solutions, avoid costly mistakes, and support qualitative findings based our technical knowledge of building science and construction.

We typically perform hygrothermal modeling analysis of envelope assemblies using computer simulation software (WUFI by ORNL/IBP). The potential and location for condensation to occur within the assemblies and the ability of significant accumulated moisture to dry is evaluated. Single or multiple assemblies can be analyzed and compared to determine the most appropriate solutions with respect to type, positioning and thickness of thermal insulation, air barriers, vapour retarders or barriers, and water resistive barriers.

Using other computer simulation software (THERM and WINDOW by LBNL, HEAT3, etc.) we are able to analyze the negative effects of thermal bridging on the overall thermal resistance of an assembly and include these factors in our calculations.

Different software options including CANQuest, eQuest, EnergyPlus, and RETScreen Clean Energy Management Software are used to model the whole building and estimate energy savings and payback for various design options.