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Questions about venting base sheets

In response to Helene Hardy Pierce's (Wayne, N.J.-based GAF Materials Corp.'s director of contractor services) article "Speaking up for venting base sheets," November 2002 issue, page 30, I am confused.

Is Pierce referring to GAF's Stratavent® Eliminator,™ a perforated base sheet that uses hot asphalt to flow through holes to adhere it to the polyisocyanurate board, or a base sheet that is mechanically fastened or spot-mopped?

If it is a perforated base sheet, shouldn't close attention be given to the facer used on the polyisocyanurate because the asphalt that flows through the facer and adheres to polyisocyanurate would be the weakest link...

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