Materials and Systems
                                        
                                        
                                            In commercial buildings, air ducts are routinely used to distribute conditioned air to the various zones within the building. These duct systems carry heating, cooling, and/o...
                                        
                                          
                                        
                                                Jul. 26, 2017
                                            
                                            
                                                National Mechanical Insulation Committee (NMIC)