Check out this video by International Cellulose on “how to control sound in any open office“. Homeco’s Acoustical Insulation Team has been installing K-13 products since 1975! K-13 is a spray-applied thermal and acoustical insulation typically used as an exposed ceiling finish requiring no additional barriers or materials. K-13 meets project requirements for thermal insulation, noise control with an attractive natural texture that is available in standard and custom colors.