Fasteners: the time required to build a boat was greatly
reduced when metal nails were introduced.
Adhesives: first waterproof glues were introduced,
and techniques such as strip-building were invented.
Saturation-resins such as epoxy ushered in the era of composite
construction. A boom of techniques resulted-- fiber-glass,
improved strip-building, coldmoulding, glass
encapsulation, fastenerless traditional, glued-lapstrake
and stitch-and-tape (this list is by no means complete).
Materials: Native american craft particularly reflect
the materials available-- bark for canoes, spruce roots for lashing,
driftwood for kayaks, oiled skins for hulls, etc.