A retrofit study is being conducted to investigate the airtightness, ventilation and energy impacts of tightening the exterior envelope and the heating and air conditioning system ductwork of a double section manufactured house. This report describes the results of the pre-retrofit assessment of building airtightness, ventilation, and energy consumption under both heating and cooling conditions...

1 Synopsis Although the power law has been broadly accepted in measurement and air infiltration standards, and in many air infiltration calculation methods, the assumption that the power law is true over the range of pressures that a building envelope experiences has not been well documented. In this paper, we examine the validity of the power law through theoretical analysis, laboratory measur...

Abstract Within the field of textile construction, textiles are traditionally used either as decorative elements in interior design or flat tensile-stressed lightweight constructions (roofs, temporary buildings, etc.). Technical made glass carbon fibers now also steel substitutes concrete construction. There, lost formwork shaping semi-finished products. Applications for 3D and particular space...

Building Envelopes P. Fazio, H. S. He, A. Hammad, M. Horvat Abstract Evaluating the overall performance of buildings has emerged as a trend in building engineering in recent years. Several programs that evaluate building performance have been developed or are being developed in different regions of the world. The Building Envelope Performance Assessment Tool (BEPAT) was initiated at Concordia U...

The Solar Envelope is a three dimensional envelope on a site which ensures adjacent neighbors a specified minimum direct solar access time per day throughout the year. The solar envelope was developed as a tool to give buildings in an urban setting the mutual opportunity to employ passive and active solar design strategies. Parametric computeraided-design (CAD) environments significantly ease t...