WeatherPRO® Technology was designed with the harsh North American climates in mind, allowing high airflow while providing excellent defense against weather infiltration. With no moving parts, the patented internal baffles effectively deflect rain and snow, allowing water to drain harmlessly out the drainage openings. All Durflo WeatherPRO products are subjected to extensive testing before they can be called “WeatherPro”, such as the Miami Dade county hurricane test, as well as extreme cold weather impact testing.

Features:
   • Maintenance free with no moving parts
   • Made from durable, UV resistant polypropylene to resist denting,                    crushing and corrosion
   • Molded screens keep out insects and bird nesting
   • Drainage openings allow moisture to exit
   • Effectively extends the life of your shingles
   • Offers a 35 year warranty