About metal corner beads.
LEFT: Type "1-A" corner bead.
RIGHT:
Badly deteriorated beads in Washington, DC.
These metal corner beads, named 1-A by US Gypsum, are made for Interior Use only, and
should never be used outside. These are different from western style Quik Corners, which
are made for exterior use.
The flange on this 30 year old corner bead has completely rotted off leaving just the bead itself, in Reston Virginia.
This is pretty sad for a material that should last for centuries.
We used these beads for years. Why ?
They were always specified for commercial work. I stopped using them after I discovered our jobs were falling apart after less than ten years.
