Effectiveness of Different Drip Edge Designs

Effectiveness of Different Drip Edge Designs

By Jonathan Smegal, M.A.Sc. Download pdf (511KB) The research described in this short report was presented in more detail at CCBST 2014. The Question: The drip edge is the leading edge of a flashing, sill, overhang or other linear, horizontal building element designed to shed water. Common drip edge locations include window sills, window head […]

SPF and the Need for Vapor Retarders in Above-Grade Residential Walls

SPF and the Need for Vapor Retarders in Above-Grade Residential Walls

By John Straube, Ph.D., P.Eng. Download pdf (712 KB) This short report summarizes research conducted by John Straube, Rachel Smith, and Graham Finch for the Canadian Urethane Foam Contractors Association (CUFCA). The full report is available at buildingscience.com. The Question: Theory and experience suggest that closed-cell spray polyurethane foam (ccSPF) is sufficiently vapor impermeable to […]

The Vancouver Test Hut Project

The Vancouver Test Hut Project

By Jonathan Smegal, M.A.Sc. and Aaron Grin, M.A.Sc., P.Eng. Download pdf (310KB) This short report summarizes a multi-phase research project initiated by Gauvin 2000 Construction Ltd., Balanced Solutions (now Building Science Consulting Inc.), the University of Waterloo Building Engineering Group, and Building Science Corporation. Contributions of materials and funding for this project were received from […]

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