I have just had my garage side filled in with hardiflex panels, stud wall with panels on both sides. The outside panels go to the ground which is a small garden bed. I intend to build up one course of of limestone Blocks, touching the bottom of the Hardiflex and then construct an open picket fence , the course of blocks is purely to stop sand blowing underneath and provide a surface for the pickets to sit on.
Question is, with the Hardiflex being on the weather side and receiving some moisture from sprinklers, should I apply a waterproofing or sealing to the Hardiflex and if so, what product.. I intend to paint them so will need to be a paintable product. Thanks.