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Clad-wood window

Also called clad window

A wood window with a weatherproof skin over its outside faces.

A clad-wood window is wood where you see it from the room and metal or plastic where the weather hits it. The wood core gives the insulation and the look of a wood window inside, and the cladding removes the need to paint the outside.

The weak point is water that gets behind the cladding at a joint. The wood beneath can rot where it cannot be seen.

Bottom rail of a clad-wood sash in section, outside at left

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Clad-wood sash, bottom rail in section

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