  We study the Scherk-Schwarz supersymmetry breaking in five-dimensional
orbifold theories with five-dimensional fields which are not strictly localized
on the boundaries (quasi-localized fields). We show that the Scherk-Schwarz
(SS) mechanism, besides the SS parameter \omega, depends upon new parameters,
e.g. supersymmetric five-dimensional odd mass terms, governing the level of
localization on the boundaries of the five-dimensional fields and study in
detail such a dependence. Taking into account radiative corrections, the value
of \omega is dynamically allowed to acquire any value in the range 0< \omega <
1/2.
