We are pleased to be a certified installer of Solar Blaster ventilation systems! Make the sun do all the hard work to keep your attic & home cool! Benefits of passive venting include, Expels heat, Explels moisture, Reduces cooling costs,Increases roof life expectancy, Reduces wood rot, Reduces heating costs, Keeps insulation fresh, Reduces risk of mold & Mildew growth,Healthier attic makes for a healthier home,Improves interior air quality! These vents are a must and work great even on slightly cloudy days. So even in the Northwest these are a great product. We are pleased to be a certified Auburn WA roofing company offering this product! Call for your roofing estimate and more information on Solar-Blaster foof ventilation products.