Curtains That Block out Light

Written by linda erlam Google
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Curtains That Block out Light
Blackout lined drapes will block all light. (Ryan McVay/Lifesize/Getty Images)

Curtains are unlined fabric window coverings that draw across a window. Adding various linings to curtains -- thereby making them drapes -- increases the level of privacy, light control and heat loss they provide.The required function of the drapes will determine the linings used, and together the drape and liner will provide differing levels of light protection.

Blackout Lining

A base fabric has two or three layers of acrylic applied to one side, which creates a lightproof fabric, which is used instead of a regular drapery lining to create blackout lined drapes. This application is well suited to a bedroom where total light blocking is required.

French Blackout

This application is a layer of black fabric sewn between the drapery fabric and lining, which creates additional bulk to the drapes but provides total blackout where necessary and is well suited to bedrooms and living rooms.

Removable Blackout Liners

Removable liners are constructed of the blackout fabric and attach to existing curtains or drapes. They are available in most stores that sell ready-made drapes and curtains. Because they are add-ons, they will not pleat or fall exactly the same as the existing drapes or curtains; therefore, they are best used in casual decor rooms.

Dim-out Drapes

If total blackout is not required, dim-out lining is often used. It will allow about half the light to pass through, which often is enough to prevent damage to floors or furniture without the total room-darkening effect of blackout drapes.

Additional Benefits of Blackout Drapes

Blackout and French blackout drapes also provide heat loss protection commensurate with the type of lining. An unlined curtain offers almost no heat loss protection whereas a blackout or French blackout drape will provide a decrease in heat loss in winter and a decrease in heat passing into the space in summer.

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