I’m installing Schluter®-KERDI over drywall in my shower. Do I need to tape the joints between panels before installing the KERDI?

No. It is not necessary to tape the joints between drywall panels before installing KERDI. If you must tape the joints per fire code requirements, make sure to apply a latex primer over the taped joints before installing KERDI. Joint compound can be water soluble and should be protected from the moisture in the thin-set mortar used to install KERDI.