Perdue Acoustics’ patented Rockwool core standard flat panels are the industry leader in the area of sound absorption with an NRC of 1.40 for the 2” flat panels in spaced arrangement. The flat panels provide an aesthetically pleasing product with high quality noise reduction and come in standard sizes from 2’ x 2’ to 4’ x 8’ (with custom sizes available) in thickness from 1”to 4”. Using the same Rockwool core as the flat panels, Perdue Acoustics’ baffles provide excellent sound absorption (NRC of 1.80 for the 2” Baffle) in the upper ceiling area, fitting perfectly between high ceiling beams or joists.