The Edge Vent withstood a stringent 30-day ice dam test conducted at PRI Construction Materials Technologies in a simulation designed to give further confidence to roofing contractors using the roof-top intake vent in northern climates. Even after an ice sheet built up over the entire Edge Vent, at no time during the testing did The Edge Vent leak. Read the test highlights and the full third-party report authored by PRI.
The Edge Vent was intentionally covered under an ice dam for 30 days. It did not leak.