Abstract: A mounting rail for siding and ceiling members featuring a locking member to maintain siding and ceiling members on the mounting rail. The mounting rail has (i) a siding support member having a horizontal leg extending forwardly with a vertical leg extending downwardly from its front edge as is typical in the art, (ii) a web member extending upwardly from the back edge of said horizontal leg, and (iii) a siding maintenance member extending forwardly and downwardly from the upper edge of the web member.