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The term self-gasketing is often suggested as a more appropriate one to describe what happens when a membrane is reported to create a closure around the head of a correctly installed fastener to help resist air and water transfer. Self-sealing membranes may provide some level of air and moisture control with varying levels of fastener engagement. However, membranes providing self-gasketing properties likely rely on fully setting of the fastener head to produce compression on the surface of the membrane for an air or watertight condition.

This terminology clarification can be useful for design and construction professionals when developing project performance parameters.

Another limitation of ASTM D1970 is the use of nails with plywood, while the vast majority of current enclosure design and construction utilizes screws and gypsum sheathing/steel studs. First, a nail shank creates a different rcs data penetration profile than a screw.

Second, many of the screws used are self-tapping. During installation, these types of fasteners may cause distress to the AWB at the penetration location from multiple actions (tearing, membrane walking up the threads, and auguring at the surface while the fastener tip is drilling through the steel stud). Varying substrates can also generate altered performance. These differences may also require consideration based on project-specific performance.