A termite-proof bath trap barrier comprising a termite-proof screen with a pass-through hole therein which permits a conduit to pass therethrough. The conduit is secured in the pass-through hole in the screen with a termite-proof adhesive sealant which completely blocks passage of pests through the hole. The screen is secured to the top surface of the slab with a termite-proof adhesive sealant after the conduit is secured in its end-use position.
