I have plastic lattice (4x8) sheets attached to the underside of my
deck. Each sheet is attached to 1"x2" stirps of wood that go around
the lattice. This provides a frame for the lattice in order to secure
it to the deck. My problem is that each springtime, I've noticed that
the lattice has cracked near the wooden frame in a couple of areas. I
think this is due to the expansiona and contraction of the lattice is
different than the wood framing.

Any ideas on how to resolve this issue?

Robin