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How to prepare a window opening in a concrete basement (foundation) wall

dubaz | Posted in Energy Efficiency and Durability on

Obtaining Airtightness and reducing cold bridge

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  1. GBA Editor
    Martin Holladay | | #1

    Zoya,
    Does your concrete wall already have a rough opening, or do you need to use a concrete saw and a hammer drill or similar equipment to create your rough opening in an existing wall?

    If you already have a rough opening, you task is easier. If you can line the rough opening with 1 or 2 inches of rigid foam, that will reduce thermal bridging (but of course it will reduce the size of the window you can install).

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