If you bang it hard with a hammer or a ladder, I suspect that it could crack in cold temperatures, especially after the UV Rays of the Sun degrade it a bit and the plasticizers leach out of it, but I have heard good feedback on that Intake Ventilation Solution from some contractors who were too intimidated to try the Smart Vent from DCI Products, Inc. or TheEdge Intake Vent from Air Vent Corporation.
Ed
Ed