Follow the Curve. Flexible or curved rods will allow you to cover the whole window by following the form. Gravity, however, is not your ally: Standard curtain rings will simply slip to the sides, giving your window the droops. Get rings that lock in place and adjust the drapes from below with tiebacks.
In the case of awning and casement windows, it is best to stick with a window treatment that can be hung outside the frame, so you don't obstruct the window access. While a valance or curtain panels would be a good option for these styles of windows, a Roman shade that mounts to the wall can also work.
Window treatments play an important role in home decor. Decoration and privacy are the two objectives of installing them. The style of treatment is dependent on the window architecture. Arched windows exude the charm of old wooden houses.
You put a curved drapery rod along the curve just above the window with two drapery panels that curve at the top and then travel down the expanse of the window to pool softly and evenly on the floor. This is a very dramatic window treatment that celebrates your arched windows and it works best with sheer to medium weight fabric.
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Arched Window Treatment Ideas Arched windows make a unique architectural addition to any home. Before picking out a treatment for your arched windows, it's important to first determine whether you have a perfect or an imperfect arch.