Reliabilt-window-mull-kit-instructions Review

: Run a continuous bead of 100% silicone sealant along the entire length of the channel where the windows will connect. This step is critical for preventing air and water leaks.

: If your windows have nailing fins or J-channels on the sides being mulled, remove them using pliers or a utility knife to allow the frames to sit tightly together. reliabilt-window-mull-kit-instructions

: You can find series-specific PDFs (e.g., Series 105 or 150) on the ReliaBilt Installation Support page . : Run a continuous bead of 100% silicone