a translucent fiberglass panel nominally 8 oz ft 2 u02dc 0 045 u2033 thick was overlaid onto the bottom of the metal panel so as to cover the cut outs an adhesive was used as the linear coefficient buffer and was disposed between the metal panel and translucent fiberglass panel to a thickness of 2 5 mil the same material was used as an additional adhesive buffer on the light transmitting panel edges as a secondary seal and to prevent the infusion of air or water under the panel in the event of a void in the adhesive the five 5 panel assembly including the light transmitting panel assembly was testing according to astm e specification 1592 and ul 90 after the testing the light transmitting panel assembly was inspected and no break down or fatigue of the component parts was observed in the above example one could also take a standing seam metal panel of the same configuration with holes of varied design and overlay it over a fiberglass or other polymer panel and mechanically fasten it to the perimeter of the metal roof or perimeter of the polymer panel assembly using mechanical fasteners this can also be done by applying it to the underside of the polymer panel turning to fig1 a and 10b an end view and a top or bottom view respectively of the light transmitting panel of the present invention are illustrated a panel 50 of the present invention for use in a metal roof system includes a metal panel 54 cut.