Best Light Blocking Strips for Windows to Block Daylight and Gaps
Light-blocking strips for windows provide an affordable way to seal gaps around blinds and shades, enhancing privacy and improving sleep quality. This guide reviews five top options, detailing materials, installation tips, and where they fit best. Each product is evaluated for versatility, durability, and ease of use to help American homeowners choose the right fit for bedrooms, nurseries, home theaters, and living spaces.
| Product | Brand | Material | Color | Length |
|---|---|---|---|---|
| 100% Flexible Blackout Light Blocking Strips | iHomeBlinds | Silicone | Black | 60″ / 78″ / 118″ (2 pcs) |
| Light Blocking Strips For Window Shades And Blinds | Bliwans Store | PVC | White | 58″ (2 pcs) |
| Light Blocking Strips, Self-Adhesive | Toperblinds Store | PVC | White | 15.75″ x 10 pcs |
| 100% Light Blocking Strips Blackout L-Shaped PVC | DRSART | PVC | White | 58.5″ (2 pcs) |
| Blackout PVC Light Blocking Strips For Window Shades | Unknown Brand | PVC | White | 58″ (2 pcs) |
100% Flexible Blackout Light Blocking Strips (78″)
The strips are crafted from silicone, offering high flexibility for bending and cornering without cracking. This material choice helps survive transport and installation in areas with curved window frames or irregular profiles. Pre-installed 3M adhesive reduces misalignment risk, streamlining setup and reducing the need for separate adhesive application after placement. Ideal for top, sides, or bottom placements, these strips can be used alongside existing brackets to maximize light blockage.
Light Blocking Strips For Window Shades And Blinds
This option uses PVC side tracks designed to block light from the sides of blackout curtains and shades. The L-shaped blocks fit along the sides of blinds and shades, reducing light leakage in bedrooms, home theaters, and nurseries. The material is selected for light absorption, helping to minimize glare and improve perceived darkness. Suitable for a range of window coverings, including cellular shades and roller blinds.
Light Blocking Strips, Self-Adhesive
These self-adhesive strips are designed for ease of installation on various window types. The design emphasizes reusability and repositioning with upgraded 3M tape that allows removal and reattachment without damaging wall surfaces. A 15.74″ length with ten pieces provides a modular approach that can be tailored to fit narrow or irregular window frames. It includes blackout tapes to seal seams and reduce light leakage at joints.
100% Light Blocking Strips Blackout L-Shaped PVC
These L-shaped PVC strips are designed to run along the sides of blackout blinds to eliminate light leaks. The installation is straightforward and allows trimming to fit window sizes at home. The product emphasizes darkening performance to improve privacy and rest, particularly in offices, media rooms, and bedrooms. A basic 58.5″ length and 0.9″ depth make them suitable for standard window dimensions while still being versatile for various shade types.
Blackout PVC Light Blocking Strips For Window Shades
Designed for side-blocking efficiency, these PVC strips feature a velvet interior surface to minimize edge wear while maximizing light absorption. The adhesive layer is thickened for stronger attachment and durability on varied wall textures. An included magnet system helps with initial placement and adjustments, reducing hassle during the first installation. Cutting guides are provided to help users tailor lengths to their windows.
Buying Guide
- Material considerations: Silicone offers flexibility and resilience for irregular frames, while PVC provides rigid, durable light blocking along the sides. Choose based on window shape and installation surface.
- Adhesive quality: Pre-applied or factory-applied adhesives reduce misalignment risks. Look for tapes labeled as strong, high-adhesion, and compatible with wall textures you have in your home.
- Length and customization: Longer strips accommodate larger windows, but ensure they can be trimmed to fit shorter frames. Some options include easy trimming or modular pieces to fit varied window sizes.
- Ease of installation: Consider whether you prefer self-adhesive strips, magnetic overlays, or require brackets to secure the strips alongside existing blinds or shades.
- Light leakage control: L-shaped or side-track profiles are often best for blocking side light gaps. Assess whether you need complete side coverage or a combination with top/bottom strips.
- Room application: Bedrooms and nurseries benefit from higher light blockage and lower glare, while living rooms might prioritize aesthetics and flexibility for daytime use.
- Compatibility: Confirm compatibility with your current window treatments (cellular shades, roller shades, blinds, roman shades) to ensure effective sealing and minimal interference with operation.
- Maintenance and removal: If you expect to relocate or renovate, choose strips with removable adhesive or easily adjustable placements to avoid wall damage.
- Safety and materials: For households with pets or children, ensure materials are non-toxic, and edges are smooth to prevent injuries.