Research Report

Using Overhangs to Reduce Building Facade Exposure to Rain

Building Enclosure Consulting Multiple Climates
Graham Finch RDH Building Science
Jieying Wang FPInnovations
Daniel Wong FPInnovations

Overhangs are a traditional approach used to protect building facades from rain. Despite their long use, their effectiveness to protect a building from wetting due to wind-driven rain has never been quantified under field conditions, especially for mid-rise and taller buildings. This is the first attempt at such research.

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