The side with the water proofer is smoother.
James Hardie representative said in one of the questions that the board was waterproofed through the entirety of the board, then, why would it matter if it is gouged, I just don't get it, is it or is not completely waterproof?
It should be fine unless it is a deep gouge.
Sorry, no you cannot use sheet rock screws. approved fasteners Minimum 1-1/4 in (for interior) & 1-3/4 in (exterior walls) long corrosion-resistant roofing nails. • Minimum 1-1/4 in (for Interior) & 1-3/4 in (exterior walls) long No. 8 x 0.375 in HD self-drilling corrosion resistant ribbed wafer head screws.
Sorry, caulking cannot be used to replace the RedGard for water proofing
Sorry, we cannot recommend our product for exterior floor applications.
You would have to use a water proofer like Redgard over the seam.
yes. you can pour self-leveling on top of hardiebacker.