Roof ventilators

Claim 1

A ROOF VENTILLATOR ADAPTED TO INTERGRAL PRODUCTION FROM STRIP STOCK AS A ROLL FORMED SECTION AND TO MOUNTING OVER A SLOT OF PREDETERMINED WITH EXTENDING ALONG THE RIDGE OF A ROOF, SAID VENTILATOR COMPRISING, IN COMBINATION, AN IMPERFORATE TOP HAVING A WIDTH GREATER THAN THAT OF SAID SLOT AND SIDE PORTIONS EXTENDING OUTWARDLY AND DOWNWARDLY ON OPPOSITE SIDES OF A LONGITUDINAL CENTRAL PLANE, SIDE WALL PORTIONS INTEGRALLY ADJOINED TO THE OUTER LATERAL EXTREMITIES OF THE TOP AND EXTENDING DOWNWARDLY AND INWARDLY THEREFROM TO POSITIONS SPACED APART APPROXIMATELY THE WIDTH OF SAID SLOT, SAID SIDE WALL PORTIONS HAVING INTEGRALLY LOUVERED VENT OPENINGS THEREIN, FLASHING PORTIONS EXTENDING OUTWARDLY AT THE LOWER ENDS OF SAID SIDE WALL PORTIONS AND ADJOINED THERETO THROUGH DOUBLE THICKNESS BAFFLES WHICH EXTEND UPWARDLY AND HAVE ADJACENT PLANAR PARTS IN FACE-TO-FACE RELATIONSHIP TO ONE ANOTHER AND ADJACENT EDGE REGIONS INTEGRALLY ADJOINED RESPECTIVELY TO SAID SIDE WALL PORTIONS AND FLASHING PORTIONS, SAID BAFFLES BEING DISPOSED BETWEEN THE SIDE WALLS IN SPACED AND OPPOSED RELATIONSHIP TO ONE ANOTHER AND IN SPACED RELATIONSHIP TO THE LOUVERED VENT OPENINGS.