IB Inside Corner

At the base of the corner, cut the membrane of wall one at a 45-degree angle, leaving enough material to create a one-and-a-half-inch weld. Weld the membrane of wall one to the field membrane, forming the base seam by starting in the corner and working outward to achieve a one-and-a-half-inch weld. Weld the membrane of wall two to the field membrane, forming the base seam, again, by starting in the corner and working outward to achieve a one-and-a-half-inch weld. Weld the vertical flap of wall two, starting on the base of the corner and working vertically to achieve a one-and-a-half-inch weld.

To install IB molded inside corners, place it tightly against the corner. Use hand pressure at the base of the corner and hold firmly. Starting in the corner, progress with welding from inside to outside, working uniformly to form the weld at the top and bottom of the molded corner. Repeat this welding process on the opposite side of the molded corner. Upon completing the installation, ensure all seams and laps are inspected and probed. If deficiencies are found, the area must be welded or repaired.