Fold-A-Vent® is a new shingle-over concept that is folded, not rolled.

Cor-A-Vent®, Mishawaka, Ind., offers Fold-A-Vent® (FAV 20), a new shingle-over concept that is folded, not rolled. The product is formed into five 4-foot sections. The folds relax as the sections are extended so the vent goes on flat and smooth. While nailing the first section, the exclusive “starter band” keeps the remaining four sections together. Unlike rolled products, the bundle stays put on the ridge during installation. It is power nailable and the corrugated plastic cross-section lets air flow freely