How to patch aluminum siding???
I'm replacing a decorative vent on the side of my house and noticed that they had cut out most of the siding behind it. Seems stupid to me since I assume some rain can get behind the siding. Before I put up the new vent, should I close up this siding holiday? I was thinking of nailing in place flashing strips so that water would run down outside the siding, not behind it. It will be invisible behind the vent.