The two main products offered by Winona Building Products are FSK and PSK. FSK stands for Foil-Scrim-Kraft and PSK stands for Polypropylene-Scrim-Kraft. These are both types of vapor barriers that are commonly used in facing for metal buildings, in particular for insulation. Both of these products use scrim and kraft — scrim being a heavy-duty reinforcement and kraft being Kraft paper that has been coated in our patent-pending Red-List-Free adhesive to promote the bond between all 3 layers and improve fire-retardant properties. The real difference between FSK and PSK lies in the F and the P — foil vs. polypropylene.
Before diving into the difference between these two types of vapor barriers and where they are best suited, we should first talk about the value of vapor barriers in general. Installing vapor barriers is an invaluable way of extending the life of a system, making structures more flame-retardant, preventing water damage, and improving the appearance of outward-facing and exposed surfaces such as in the case of HVAC ductwork. Vapor retarders are used in many industries, in particular construction, metal building, automotive, and aerospace.
Winona Building Products specializes in creating premium-quality insulation facing for these industries, with a specific focus in creating insulation facing that is Red-List-Free. Call us now to learn more about how we can help your business or order vapor retarder today!