hole_in_basement_concrete
Differences
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| hole_in_basement_concrete [2025.06.28 16:41] – [Dealing with a Plumber's Box Hole and Radon Risk] Steve Isenberg | hole_in_basement_concrete [2025.06.28 16:41] (current) – [Sealing a Plumber’s Box Hole Using Nashua 324A Tape] Steve Isenberg | ||
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| === Purpose === | === Purpose === | ||
| Temporarily or semi-permanently seal an open plumber’s box hole in the basement floor to reduce radon entry and soil gas infiltration. | Temporarily or semi-permanently seal an open plumber’s box hole in the basement floor to reduce radon entry and soil gas infiltration. | ||
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| === Materials Needed === | === Materials Needed === | ||
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| * Wooden board (to cover and protect the plastic sheeting) | * Wooden board (to cover and protect the plastic sheeting) | ||
| * Weights (e.g., concrete block or heavy object) | * Weights (e.g., concrete block or heavy object) | ||
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| === Preparation === | === Preparation === | ||
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| * Allow surface to dry fully for better tape adhesion. | * Allow surface to dry fully for better tape adhesion. | ||
| - Cut plastic sheeting large enough to cover the hole and extend at least 6–12 inches beyond the hole edges onto clean concrete. | - Cut plastic sheeting large enough to cover the hole and extend at least 6–12 inches beyond the hole edges onto clean concrete. | ||
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| === Sealing Steps === | === Sealing Steps === | ||
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| - Place the wooden board on top of the sealed plastic for extra protection. | - Place the wooden board on top of the sealed plastic for extra protection. | ||
| - Set weights on top of the board to prevent accidental shifting. | - Set weights on top of the board to prevent accidental shifting. | ||
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| === Notes === | === Notes === | ||
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| * Nashua 324A is suitable for this application due to its high adhesion, vapor barrier properties, and UL certification. | * Nashua 324A is suitable for this application due to its high adhesion, vapor barrier properties, and UL certification. | ||
| * This setup allows for later permanent sealing if necessary. | * This setup allows for later permanent sealing if necessary. | ||
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| === Long-Term Options === | === Long-Term Options === | ||
hole_in_basement_concrete.txt · Last modified: by Steve Isenberg