indemnify. 1  to compensate for damage or loss sustained, expense incurred, etc. 2  to guard or secure against anticipated loss; give security against (future damage or liability).
Counter-flashing (or cover flashing, cap flashing) is a term used when there are two parallel pieces of flashing employed together such as on a chimney, where the counter-flashing is built into the chimney and overlaps a replaceable piece of base flashing.
flashing. 1  Building Trades. pieces of sheet metal or the like used to cover and protect certain joints and angles, as where a roof comes in contact with a wall or chimney, especially against leakage. 2  the act of creating an artificial flood in a conduit or stream, as in a sewer for cleansing it.