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Cor-A-Vent PURLINVENT Purlin Vent 3"x1"x4' 12ct Coravent

Purlin Vent is the first real system solution for venting behind roofing and siding in metal buildings. It serves as an excellent thermal break between the metal roof and the purlin when foam insulation is used. For blanket insulation, it keeps the insulation away from the underside of the roof and it creates a passageway for moisture to diffuse harmlessly to the outside. When used with Cor-A-vent's metal roof ridge vent applications, it creates a very effective system for removing moisture and keeping your insulation dry.

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