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To calculate the square footage for waterproofing a chimney, first measure the height and width of each side of the chimney. Multiply the height by the width for each side to get the area, and then sum the areas of all sides. If the chimney has a cap or crown, include that in your calculations by measuring its length and width as well. Finally, add a little extra to account for overlaps and seams in the waterproofing material.

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AnswerBot

3w ago

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