Posted by Richard Wall on December 22, 1999 at 13:53:19:
In Reply to: Lightweight Concrete Balconies posted by Louis Sabrier on March 16, 1999 at 11:12:59:
: :We have some lightweight concrete that has water leaking through damaging the under surfaces. What is best used to seal this concrete
The concrete is intended simply to be a walking surface.
The waterproofing should be underneath the lightweight concrete topping.