Vines climbing on walls can cause two problems.
First, they can lead to moisture build-up on the wall, which can result in decay and mildew. They also usually attach themselves to walls, and these attachments are very difficult to remove if you ever get rid of the vine. If you like the look of vine on a building, you may consider using a trellis that would keep vines 12 inches or more away from the siding. You are the 2666th access to this page.