From a builder/board member standpoint, I see three distinct areas of concern associated with the deck ledger attachment methods that are commonly used today. These concerns led to the development and testing of the Attach-A-Deck product line.

Attach-A-Deck is a tested method for attaching the deck ledger to the house band joist (rim joist) directly. Attach-A-Deck is self sealing so flashing is not required. The result is an air gap between the house and deck ledger to providing for: (1) ventilation around the deck., (2) expansion of synthetic decking materials, and (3) a non intrusive method for the deck builder to attach-a-deck without violating the outer system of the home by removal of siding. To Building Officials