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In order to protect his family from severe weather, Gary Karnavas built his home with Insulating Concrete Forms (ICF). ICFs are polystyrene blocks that snap into place and serve as insulation. Rebar lines the inside of the forms and also connect them to the foundation. Then the middle of the form is filled with concrete. The result is a building that’s stronger than a wood-built home.

More North Texans are looking into building homes out of concrete using Insulated Concrete Forms for the walls, which NUDURA Integrated Building Technology says can withstand 250 mile an hour winds.

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