  In the context of extended Teleparallel gravity theories, we address the
issue of junction conditions required to guarantee the correct matching of
different regions of spacetime. In the absence of shells/branes, these
conditions turn out to be more restrictive than their counterparts in General
Relativity as in other extended theories of gravity. In fact, the general
junction conditions on the matching hypersurfaces depend on the underlying
theory and a new condition on the induced tetrads in order to avoid delta-like
distributions in the field equations. This result imposes strict consequences
on the viability of standard solutions such as the Einstein-Straus-like
construction. We find that the continuity of the scalar torsion is required in
order to recover the usual General Relativity results.
