ScrewDown Glazing Gasket with Aluminium Cap 60mm wide aluminium Rafter Main Glazing Bar and Cover Cap with EPDM rubber Base Gasket. Powdercoated White or Brown. Great retrofit capping for 3 inch wooden spars. Part of the respected Sunwood Timber Glazing System. Retrofitted to 3 rafters on existing 540 pitched timber roofs the 60mm Rafter Main Bar and other Sunwood components can encase and seal problem leak areas while also breathing a new lease of life into the roof. Sunwood is equally effective on new installations too offering an attractive lowmaintenance longlife capping solution. This ScrewDown rafter bar includes powdercoated aluminium 60mm Rafter Main Bar Top Cap with detachable Cover Cap to conceal and protect fixings. Rafter Main Bar incorporates an integrated High Side EPDM Rubber Gasket for watertight seal against top side of glazing and a separate EPDM Base Gasket with removable central pip that is fixed to timber rafter to act as a seat and seal on u...