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 […]

Selection Tool For Water-Resistive Barriers With Suitable Vapor Permeability

Selection Tool For Water-Resistive Barriers With Suitable Vapor Permeability

By: Marcus Jablonka, Achilles Karagiozis, and John Straube. Abstract: Over the past several decades, advances in the application of polymers brought new polymeric water-resistive barriers witha wide range of vapor permeability to market, commonly referred to as “breathable” housewraps. However, at this time there is virtually no guidance available regarding the selection of the optimum […]

Drainage Balance Testing of Mineral Wool Insulation

Drainage Balance Testing of Mineral Wool Insulation

By: Jonathan Smegal. Abstract: Modern building enclosure designs often make use of rainscreen cladding and a layer of continuous insulation installed outboard of a drainage plane / water control layer. Although mineral wool insulation has been used successfully in rainscreen and masonry cavity walls for several decades, the relative unfamiliarity of the North American building […]

Quantitatively Evaluating the Effectiveness of Different Drip Edge Profiles

Quantitatively Evaluating the Effectiveness of Different Drip Edge Profiles

By Jonathan Smegal, Alex Lukachko, John Straube, and Trevor Trainor Abstract: Proper rainwater management is one of the key factors ensuring long-term durability of a building. Drip edges should be specified in key locations on nearly every building to help deflect water from the exterior surface of a wall assembly, thereby reducing moisture-related issues such […]

Moisture-Related Durability of Walls with Exterior Insulation in the Pacific Northwest

Moisture-Related Durability of Walls with Exterior Insulation in the Pacific Northwest

By: Jonathan Smegal, John Straube, Joseph Lstiburek, and Aaron Grin. Abstract: This paper compares the moisture-related performance of a wall with exterior insulation installed over oriented strand board (OSB) to the performance of a drained and ventilated wall with a 19 mm (0.75 in.) gap and a wall with direct-applied stucco over building paper. The […]

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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