@sidingtips.ca: We developed this “Drywall Adapter” a few years ago mainly for framers nailing exterior drywall products like GlasRoc or DensGlass. In many regions it will fail inspection if the nail head breaks the outer paper. The Dewalt roofing nailer tends to overdrive the nails so this spacer is the perfect solution. Since then, many contractors use it for products like Sonopan and Hardie for the same reasons. There are guide markings on the outer perimeter of the adapter. They are available at www.sidingtips.ca . . . . . . . . . . . #drywalladapter #roofingnailer #roofingnailerspacer #sidingtips