Cavity Airflow Research

2013 Weep Hole Airflow Research

Weepa commissioned new airflow research in 2013 to test a wider range of products and some new prototypes. Results showed that all bar one of the supplied weep hole inserts had no significant restriction of the airflow under normal and extreme operating conditions at typical or even high gust weather conditions. Fortunately the product that resulted in airflow restriction was not one that Weepa manufactures. Check out the full report below to see how the products performed.

Airflow Restriction Research Report - Griffith University 2013

Initial Airflow Research - 2008

Dr Daniel James and his team completed the first round of testing at the Nathan campus of Griffith University, Brisbane. Weepa Product Development Manager John Flint commissioned the team to measure airflow through a number of Weepa weep hole designs in various simulated weather conditions. The results show that all of the products tested cause "no significant restriction of the airflow under typical, normal and extreme operating conditions". 

Initial Airflow Research Report

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The Weepa range is subject to Intellectual Property Rights: Aust Pat Nos - 713335, 762230, 2007237177, 2007215369, 2008271915  Aust Pat Aps - 2013211506. International PCT AU2007/000004, PCT AU2014/000123.  NZ Pat No 567674, Sth Africa Pat No 2008/03841, USA Pat No 8171677, Canada Pat No 2629033, Germany Pat No 602007037097.3, Spain Pat No ES2491221, Italy Pat No IT1984580, France Pat No FR1984580, United Kingdom Pat No GB1984580. Des Reg 137021, 150609, 156915. Aust TM 775282, NZ TM 961710, USA TM 4457028, Europe TM 1145302.