{"id":"dual-pane","license":"CC-BY-4.0","data":{"term":"dual-pane","shortDef":"Two or more lites in one window unit. Oregon R327 treats multilayered glass as one glazing option. It is not the same as tempered glass.","alsoCalled":["multilayered glazed panels"],"doNotSay":["fire-rated window"],"relatedGlossary":["tempered","r327","cwuic"],"relatedCategories":["windows"],"relatedStandards":["sfm-12-7a-2"],"relatedGuides":["dual-pane-vs-tempered"],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z"}}