the present invention is directed to methods of interlocking panels as well as panels and paneling kits useful in working those methods . the complete interlocked panel assembly resulting from working these methods exhibits a horizontal pattern , excellent wind uplift resistance and water tightness . concealed fastening devices for panel - to - substrate affixation add to the water proofing and aesthetic qualities of the finished panel assemblies of the present invention . the self - interlocking panels of the present invention are easy to install , especially in that no external clips or other fasteners are necessary for panel - to - panel affixation . the interlocking panels of the present invention may be installed from the top of the underlying structure downward .