NOVELTY - A process for attaching a hot water vessel (with a main body made of thick sheet of regenerated, recycled high density polyethylene) with standing runners to a roof, using a jig for thick material inserted into slots and holes in latched hangers and recessed indentations to prevent slipping of the warm-water apparatus semi-cylinder, rubber band metal fittings and short control crosspieces of transparent material.    USE - For solar heating of a water vessel. It may supply a water sprinkler.    ADVANTAGE - Uses green energy.    DETAILED DESCRIPTION - Insertion of a jig for thick material into each roof step insertion slot through cut slot holes (A19-19) in both sides of the latch hanger projection (A15) in the insertion slot of the face plate for the steps of the roof covering material; and fixation of standing runners into the end of latch hanger (A15) using inserts. Recessed indentations (which prevents sliding down) in the warm-water apparatus semi-cylinder, are received in a block support and fastened using rubber band metal fitting (A20) and a support rubber band metal fitting in the indentations of the hot water apparatus; and locked in use to the end of the eaves without crimping. It is completed simply. A thick sheet of regenerated, recycled high density polyethylene is used for the hot water vessel main body material, preserving the strength of the round diameter for the indentation of the hot water vessel, and an interruption hot water vessel which hangs down from the end of the eaves, using a screw coupling to fix them on in turn. The combined use length from the end of the eaves to the roof ridge is 2-3m. After attaching the hot water vessels, they are held by short control crosspieces of specific transparent insulation fibre flame-proofing material from the end of the eaves to the roof ridge, in a parallel row. An adhesive material is coated on the roof surface; it has an inverted triangle of thermal insulation material on the hot water vessel base.    DESCRIPTION OF DRAWING(S) - The Figure shows a rubber band metal fitting.    Latch hanger (A15)    Both ends cut slot hole (A19)    Skin and rubber band metal fitting (A20)