Lomanco has been producing quality ventilation products, and only ventilation products, since 1946. It’s what we know and do best, and we take great pride in our products. Lomanco's state-of-the-art manufacturing facility, engineering lab, and testing facility are used to produce our high quality products with proven performance. You can feel secure knowing a great product is on your roof, backed by the history and integrity of Lomanco Vents.