Hog Slat Inc. Newton Grove, NC USA January 2020 3 Ventilation System Figure 2 Please Note: It is important to make sure the horizontal stringers are straight and level to within +/- ½” and the door is plumb to within ¼” as mentioned above. Sealing the Rough Opening Silicone Caulk or equivalent should be used to seal between the Perimeter Stringer Boards and wall as well as the joints between the Stringer Boards (See Figure 3) Figure 3
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