MCA Issues White Paper

The Metal Construction Association, Glenview, Ill., has issued a white paper about the use of preservative treated lumber with metal roofing and wall products. Titled “Metal Roof and Wall Panel Components in Contact with Preservative Treated Lumber,” the paper was initially drafted in opposition to potential changes in a Florida building code that proposed requiring preservative treatedlumber for uses that include batten structures commonly used with metal shingle products. According to Scott Kriner, technical director for MCA, the paper also serves as an education tool. “When new preservative treated lumber began to take the place of chromated copper arsenate treated lumber, the metal construction industry recognized a need to educate its customers about the potential corrosion problems associated with using this lumber with certain types of fasteners and metals commonly chosen for wall or roof systems. With this paper, MCA has stated its position on this issue, which is similar to that of other industry associations,” he said. This paper is available at www.metalcon struction.org/pubs/pdf/PreservativeTreated Lumber_072808.pdf.