I have a covered front porch that is made with a composite material about 32 inches off the ground. I have lattice around the bottom now, and am wondering if it is possible to remove the lattice and replace it with brick to match the exterior of the home. I would spread ground fabric and stone underneath to disappate moisture concerns, and the masons would install two vents. Is this enough to alleviate concerns about moisture from below affecting the decking? Any help or advice would be appreciated.