Mesh over Cornerbead?

SPISurfer · 02-02-2009, 09:15 AM

I've noticed in some dyi videos and pictures that they put the mesh over the metal corner bead before mudding. Does this make a smoother transition?

kok328 · 02-02-2009, 06:55 PM

The reason for this application is to reduce the chances of a hairline crack where the edge of the corner bead meets the drywall.
Sort of like taping a seam.

SPISurfer · 02-03-2009, 08:20 AM

Thanks for the response - more mudding. Have a great day!

Deacon · 02-03-2009, 02:01 PM

The mesh over the metal corner bead trick is not worth much. The mesh itself causes hair line cracks in the mud finish just as soon as the ground shifts and the original cheap mesh glue breaks down underneath the mud. Mesh tape was invented for the homeowner to purchase. Do it right the first time and you will not need it. Nail the metal corner securely in the beginning (no ripples - no waves allowed within the newly installed metal corner)- push original mud application into metal corner fully during the first coat and allow each and every additional mud application to dry completely before the next mud application. As in the professional roofer does not need tar, the professional drywaller does not need mesh tape. Always finish your corner mud job with a 12" blade so to feather out any discrepancies in the wall.