SMACNA Technical Papers and Guidelines review processes, specifications and requirements in various documents and standards, providing reviews, recommendations, clarifications and some useful tips for contractors.
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This technical resources bulletin explains the importance of specifying performance parameters for insulation and why not to specify the density of thermal and acoustic duct insulation used in HVAC ductwork.
TRB #03-21 Why Not to Specify the Density of Thermal and Acoustic Duct Insulation
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