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Cl\,;\;UIUi:UI\;e WILli rlUnUi:I Dunulng voce. Note: In residential applications, building codes require a plywood deck with the use of #30 felt to provide adequate thermal & moisture barrier protection. (Batten strips 24" on center attached - to a plywood deck are optional. Fastening calculations must be computed by an engineer to meet specific wind requirements if the building parameters differ from the parameters stated in the fastening schedule. / PBR & R-PANEl INSTAllATION SPECIFICATIONS Wood Deck: Must be minimum 1/2" structural plywood or OSB (5/8" for Metro-Dade new construction/or High Wind Velocity Zones/120 mph and above) supported on rafters at a, maximum of 24" on-center. Battens: PBR metal roofing can be separated from the moisture barrier by minimum, nominal 1" x 3" yellow pine battens spaced on maximum 24" centers or according to ASCE calculations where applicable. CAUTION: Direct contact between pressure treated lumber, green, or damp lumber and metal roofing must be avoided in order to prevent potential corrosion. The battens must be fastened to the roof deck with minimum #6 screws at 12" on-center or two minimum 8d common or pneumatic nails spaced 8" o,c. or one every 4" on-center (or by applicable calculations according to ASCE 7-98. Battens must be installed to support the entire width and length of ridge, eave, hip, valley, and gable end trims, Battens are optional if re-roofing over shingles. NOTE: Re-roofing over shingles without a batten is allowed providing the roof has been checked by a licensed roofing contractor to insure levelness and pull-out integrity. 1. Start at the gable or rake opposite of the prevailing wind. The leading edge should not be the purlin bearing leg. 2. It is imperative that the panels be laid in square to insure proper lapping. (a chalk line 38" from the gable edge running from the ridge to the eave can be used as a guide).