[{"slug":"visible-tilt-rod","name":"Visible tilt rod","definition":"A front-mounted bar that links shutter louvers so they turn together.","practical":"Its travel and clearance are relevant to any mechanism review.","diagram":"/images/visible-tilt-rod.svg","related":["hidden-tilt","louver","shutter-panel"],"types":["full-height-plantation-shutters","cafe-style-shutters"],"guide":"visible-tilt-rod-vs-hidden-tilt-shutters","reviewStatus":"editorial-synthesis","evidence":[{"sourceId":"SRC-NORMAN-G4","support":"product-context","scope":"Norman shutter louver operation","note":"The plain-language definition is editorial synthesis; documentation is used only as product context.","source":{"id":"SRC-NORMAN-G4","publisher":"Norman Window Fashions","title":"PerfectTilt G4 Motorized Shutters Program Binder","url":"https://download.normanwindowcoverings.com/Document/Service/download/ProgramBinder/Shutter/PerfectTiltG4%20Motorized%20Shutters.pdf","type":"manufacturer-technical-documentation","authority":"manufacturer","scope":"PerfectTilt G4 motorized shutters only; integrated motorized louver operation and product-specific installation details","retrievedOn":"2026-08-06"}}],"id":"glossary-visible-tilt-rod","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/visible-tilt-rod","lastReviewed":"2026-08-06","sourceIds":["SRC-NORMAN-G4"]},{"slug":"hidden-tilt","name":"Hidden tilt","definition":"A shutter-louver linkage positioned behind or within the panel instead of using a front-mounted tilt rod.","practical":"The concealed linkage can change what must be inspected before considering automation.","diagram":"/images/hidden-tilt-system.svg","related":["visible-tilt-rod","louver","shutter-panel"],"types":["full-height-plantation-shutters","tier-on-tier-shutters"],"guide":"visible-tilt-rod-vs-hidden-tilt-shutters","reviewStatus":"editorial-synthesis","evidence":[{"sourceId":"SRC-NORMAN-G4","support":"product-context","scope":"Norman shutter louver operation","note":"Editorial terminology; not a universal manufacturer specification.","source":{"id":"SRC-NORMAN-G4","publisher":"Norman Window Fashions","title":"PerfectTilt G4 Motorized Shutters Program Binder","url":"https://download.normanwindowcoverings.com/Document/Service/download/ProgramBinder/Shutter/PerfectTiltG4%20Motorized%20Shutters.pdf","type":"manufacturer-technical-documentation","authority":"manufacturer","scope":"PerfectTilt G4 motorized shutters only; integrated motorized louver operation and product-specific installation details","retrievedOn":"2026-08-06"}}],"id":"glossary-hidden-tilt","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/hidden-tilt","lastReviewed":"2026-08-06","sourceIds":["SRC-NORMAN-G4"]},{"slug":"louver","name":"Louver","definition":"An adjustable blade inside a shutter panel that changes light and privacy when tilted.","practical":"Linkage, dimensions, and resistance to movement matter for a mechanism review.","diagram":"/images/plantation-shutter.svg","related":["visible-tilt-rod","hidden-tilt","shutter-panel"],"types":["full-height-plantation-shutters","composite-interior-shutters"],"guide":"how-plantation-shutter-louvers-work","reviewStatus":"editorial-synthesis","evidence":[{"sourceId":"SRC-NORMAN-G4","support":"product-context","scope":"Norman shutter louver operation","note":"Editorial terminology informed by product documentation.","source":{"id":"SRC-NORMAN-G4","publisher":"Norman Window Fashions","title":"PerfectTilt G4 Motorized Shutters Program Binder","url":"https://download.normanwindowcoverings.com/Document/Service/download/ProgramBinder/Shutter/PerfectTiltG4%20Motorized%20Shutters.pdf","type":"manufacturer-technical-documentation","authority":"manufacturer","scope":"PerfectTilt G4 motorized shutters only; integrated motorized louver operation and product-specific installation details","retrievedOn":"2026-08-06"}}],"id":"glossary-louver","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/louver","lastReviewed":"2026-08-06","sourceIds":["SRC-NORMAN-G4"]},{"slug":"shutter-panel","name":"Shutter panel","definition":"A framed section of interior shutters that contains louvers and may swing open on hinges.","practical":"Louver tilt and panel swing are separate motions, so a device review needs both.","diagram":"/images/shutter-panel-measure.svg","related":["louver","visible-tilt-rod","hidden-tilt"],"types":["full-height-plantation-shutters","tier-on-tier-shutters"],"guide":"can-existing-shutters-be-motorized","reviewStatus":"editorial-synthesis","evidence":[{"sourceId":"SRC-NORMAN-MANUALS","support":"product-context","scope":"Official shutter installation manuals","note":"Editorial terminology, not a universal compatibility assertion.","source":{"id":"SRC-NORMAN-MANUALS","publisher":"Norman Window Fashions","title":"Installation Instructions and Manuals","url":"https://www.normanproductwarranty.com/installation-PDF-SU.asp","type":"manufacturer-document-index","authority":"manufacturer","scope":"Official installation and product-manual index, including PerfectTilt G4 materials","retrievedOn":"2026-08-06"}}],"id":"glossary-shutter-panel","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/shutter-panel","lastReviewed":"2026-08-06","sourceIds":["SRC-NORMAN-MANUALS"]},{"slug":"headrail","name":"Headrail","definition":"The top rail that supports or houses the operating mechanism of many blinds and shades.","practical":"Its depth and clearance can affect replacement and retrofit feasibility.","diagram":"/images/horizontal-blinds.svg","related":["inside-mount","outside-mount","retrofit-automation"],"types":["aluminum-mini-blinds","vertical-blinds"],"guide":"retrofit-vs-replacement-window-automation","reviewStatus":"editorial-synthesis","evidence":[{"sourceId":"SRC-CPSC-15J","support":"product-context","scope":"Window-covering product components and safety requirements","note":"Editorial terminology; check the product manual for exact construction.","source":{"id":"SRC-CPSC-15J","publisher":"U.S. Consumer Product Safety Commission","title":"Window Coverings 15(j) Determination","url":"https://www.cpsc.gov/Business--Manufacturing/Business-Education/Business-Guidance/Window-Coverings-15j","type":"government-regulatory-guidance","authority":"government","scope":"Window-covering cord safety requirements and product scope","retrievedOn":"2026-08-06"}}],"id":"glossary-headrail","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/headrail","lastReviewed":"2026-08-06","sourceIds":["SRC-CPSC-15J"]},{"slug":"inside-mount","name":"Inside mount","definition":"A treatment installed within the window opening.","practical":"Depth, width, and obstructions can change treatment and automation options.","diagram":"/images/shutter-panel-measure.svg","related":["outside-mount","headrail"],"types":["roller-shades","cellular-honeycomb-shades"],"guide":"how-to-measure-shutter-louvers-and-panels","reviewStatus":"supported","evidence":[{"sourceId":"SRC-DOE-MOUNT","support":"direct","scope":"Interior window-covering mounting","note":"DOE discusses interior mounting approaches in its window-coverings reference.","source":{"id":"SRC-DOE-MOUNT","publisher":"U.S. Department of Energy","title":"Residential Windows, Doors, and Skylights: Window Coverings","url":"https://www.energy.gov/sites/prod/files/2013/11/f5/residential_windows_coverings.pdf","type":"government-research","authority":"government","scope":"Interior window-covering mounting approaches and energy-performance context","retrievedOn":"2026-08-06"}}],"id":"glossary-inside-mount","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/inside-mount","lastReviewed":"2026-08-06","sourceIds":["SRC-DOE-MOUNT"]},{"slug":"outside-mount","name":"Outside mount","definition":"A treatment installed on wall or trim outside the window opening.","practical":"It can change edge coverage, but trim, door clearance, and fastener locations still need review.","diagram":"/images/roller-shade.svg","related":["inside-mount","room-darkening"],"types":["roller-shades","roman-shades"],"guide":"retrofit-vs-replacement-window-automation","reviewStatus":"supported","evidence":[{"sourceId":"SRC-DOE-MOUNT","support":"direct","scope":"Interior window-covering mounting","note":"DOE provides mounting context; exact installation remains product-specific.","source":{"id":"SRC-DOE-MOUNT","publisher":"U.S. Department of Energy","title":"Residential Windows, Doors, and Skylights: Window Coverings","url":"https://www.energy.gov/sites/prod/files/2013/11/f5/residential_windows_coverings.pdf","type":"government-research","authority":"government","scope":"Interior window-covering mounting approaches and energy-performance context","retrievedOn":"2026-08-06"}}],"id":"glossary-outside-mount","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/outside-mount","lastReviewed":"2026-08-06","sourceIds":["SRC-DOE-MOUNT"]},{"slug":"top-down-bottom-up","name":"Top-down/bottom-up","definition":"A shade configuration that can open from the top, bottom, or both to balance daylight and privacy.","practical":"The operating layout is product-specific, so automation and repair assumptions require exact documentation.","diagram":"/images/cellular-shade.svg","related":["room-darkening","blackout"],"types":["cellular-honeycomb-shades"],"guide":"smart-shutters-vs-smart-blinds-vs-smart-shades","reviewStatus":"supported-with-scope","evidence":[{"sourceId":"SRC-HD-TOPDOWN","support":"direct-manufacturer","scope":"Hunter Douglas top-down/bottom-up shades","note":"Supports the named manufacturer’s product configuration, not every shade.","source":{"id":"SRC-HD-TOPDOWN","publisher":"Hunter Douglas","title":"Top-Down Bottom-Up Shades","url":"https://www.hunterdouglas.com/window-treatments/shades/top-down-bottom-up-shades","type":"manufacturer-product-guidance","authority":"manufacturer","scope":"Top-down/bottom-up shade operation in the named manufacturer’s product range","retrievedOn":"2026-08-06"}}],"id":"glossary-top-down-bottom-up","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/top-down-bottom-up","lastReviewed":"2026-08-06","sourceIds":["SRC-HD-TOPDOWN"]},{"slug":"room-darkening","name":"Room darkening","definition":"A configuration intended to reduce incoming light substantially without necessarily eliminating edge gaps.","practical":"Opacity, side gaps, and mounting influence the result more than the label alone.","diagram":"/images/roller-shade.svg","related":["blackout","inside-mount","outside-mount"],"types":["roller-shades","cellular-honeycomb-shades"],"guide":"smart-shutters-vs-smart-blinds-vs-smart-shades","reviewStatus":"supported-with-scope","evidence":[{"sourceId":"SRC-HD-LIGHT","support":"direct-manufacturer","scope":"Hunter Douglas room-darkening guidance","note":"Product-maker guidance; not an independent performance certification.","source":{"id":"SRC-HD-LIGHT","publisher":"Hunter Douglas","title":"Blackout Blinds and Room-Darkening Shades","url":"https://www.hunterdouglas.com/stories/buyers-guides/blackout-blinds-room-darkening-shades?vt-k=darkening+shutters","type":"manufacturer-guidance","authority":"manufacturer","scope":"Named manufacturer’s guidance on room darkening, edge gaps, outside mounting, and LightLock systems","retrievedOn":"2026-08-06"}}],"id":"glossary-room-darkening","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/room-darkening","lastReviewed":"2026-08-06","sourceIds":["SRC-HD-LIGHT"]},{"slug":"blackout","name":"Blackout","definition":"A light-control configuration designed to minimize incoming light using opaque material and attention to edge coverage.","practical":"Material, installation gaps, and the window itself affect the outcome.","diagram":"/images/bedroom-blackout.svg","related":["room-darkening","inside-mount","outside-mount"],"types":["roller-shades","cellular-honeycomb-shades"],"guide":"smart-shutters-vs-smart-blinds-vs-smart-shades","reviewStatus":"supported-with-scope","evidence":[{"sourceId":"SRC-HD-LIGHT","support":"direct-manufacturer","scope":"Hunter Douglas blackout guidance","note":"Product-maker guidance; not a blanket darkness guarantee.","source":{"id":"SRC-HD-LIGHT","publisher":"Hunter Douglas","title":"Blackout Blinds and Room-Darkening Shades","url":"https://www.hunterdouglas.com/stories/buyers-guides/blackout-blinds-room-darkening-shades?vt-k=darkening+shutters","type":"manufacturer-guidance","authority":"manufacturer","scope":"Named manufacturer’s guidance on room darkening, edge gaps, outside mounting, and LightLock systems","retrievedOn":"2026-08-06"}}],"id":"glossary-blackout","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/blackout","lastReviewed":"2026-08-06","sourceIds":["SRC-HD-LIGHT"]},{"slug":"factory-integrated-motorization","name":"Factory-integrated motorization","definition":"A treatment designed and sold with a motor as part of its original operating system.","practical":"It generally means choosing a supported system rather than adding motion to an unknown existing mechanism.","diagram":"/images/smart-automation.svg","related":["retrofit-automation","headrail"],"types":["roller-shades","cellular-honeycomb-shades"],"guide":"retrofit-vs-replacement-window-automation","reviewStatus":"supported-with-scope","evidence":[{"sourceId":"SRC-NORMAN-G4","support":"direct-manufacturer","scope":"Norman PerfectTilt G4","note":"Illustrates factory integration for the named shutter system only.","source":{"id":"SRC-NORMAN-G4","publisher":"Norman Window Fashions","title":"PerfectTilt G4 Motorized Shutters Program Binder","url":"https://download.normanwindowcoverings.com/Document/Service/download/ProgramBinder/Shutter/PerfectTiltG4%20Motorized%20Shutters.pdf","type":"manufacturer-technical-documentation","authority":"manufacturer","scope":"PerfectTilt G4 motorized shutters only; 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it does not approve shutter compatibility.","source":{"id":"SRC-SWITCHBOT-TILT","publisher":"SwitchBot","title":"Blind Tilt","url":"https://us.switch-bot.com/products/switchbot-blind-tilt","type":"manufacturer-product-documentation","authority":"manufacturer","scope":"SwitchBot Blind Tilt only; a retrofit device for compatible blind tilt mechanisms","retrievedOn":"2026-08-06"}}],"id":"glossary-retrofit-automation","canonicalUrl":"https://shadesshuttersorblinds.com/glossary/retrofit-automation","lastReviewed":"2026-08-06","sourceIds":["SRC-SWITCHBOT-TILT"]}]