Mold, mildew and sag-resistance
Flush tegular edge detail (minimizes grid look)
Installs in Armstrong® Prelude 15/16-in grid system
Covers 64-sq ft per carton (8 pieces per carton)
Acoustical (NRC=0.55, CAC=35)
Class A fire rating
Common size: 24-in x 48-in x 5/8-in