There are two meanings for a roof apron a flashing material similar to a drip edge that is installed at the bottom of a roof channelling the run off away from the fascia and into a gutter.
Roof apron definition.
4 in a membrane roof system.
A metal closure set over or covering the joint between adjacent metal panels.
Barge board the board covering the roof timbers on the gable or skillion end of a roof fixed parallel to the roof slope.
1 cap or cover.
The tallest point of the roof.
Apron flashing a one piece flashing such as is used at the lower side of a chimney that penetrates a sloping roof.
A strip of wood usually set in or over the structural deck used to elevate and or attach a primary roof covering such as tile.