What should be done to condensate condensation on the upper edge of the tape when applying double-backed tape?

When dealing with condensation on the upper edge of double-backed tape, trimming it to a point is the most effective method. This approach helps to ensure that any moisture that collects at the edge of the tape can easily shed off rather than being trapped. By tapering the edge, it minimizes potential water accumulation, which can lead to adhesive failure or other issues such as mold or deterioration over time.

In contrast, leaving the tape flat can create a ledge for moisture to accumulate, while trimming it square does not facilitate proper drainage, therefore keeping moisture in contact with the adhesive for extended periods. Covering the tape with paint may not address the issue of condensation effectively and can potentially seal in moisture, exacerbating the problem. Hence, the correct practice is to trim the edge to a point to allow for better moisture management and adhesive performance.