Can spray foam insulation be used in existing walls? | | Always | 14% | | In most cases | 14% | | In some cases | 71% | | | | | Question: Can spray foam insulation be used in existing walls? Top Answer (71% of 7 votes): In some cases.
Answer: In some cases
Explanation: What is considered pour foam which is inject through a small tube inside the wall cavity or the interior or exterior wall would have to be removed to apply | | Poly Energy |
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