How can I prevent the "light gap" on the sides of my roller shades?

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    The "light gap" is a common byproduct of the hardware required to mount a roller shade, but several professional solutions exist to achieve a near-total blackout. The most effective method is the installation of side channels—vertical tracks that the fabric slides within—which physically block light from leaking around the edges. This is particularly recommended for home theaters or nurseries where darkness is critical. Another designer-favored approach is to use an outside mount that extends several inches beyond the window casing on all sides; this overlap significantly reduces perimeter light leakage. For a more decorative solution, you can pair your roller shades with side panels or a sleek valance to cover the hardware and edges. Selecting a shade with a "reverse roll" can also position the fabric closer to the glass, further minimizing the gap. By addressing these details during the specification phase, you can ensure your roller shades provide the uncompromising performance expected in a luxury setting.