installing pvc ceiling panels
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With your utility knife, carefully cut along the marked lines. Ensure you are cutting only through the drywall and not damaging any electrical wires or pipes behind it. For a cleaner cut, score the drywall along the lines multiple times before breaking it along the score.
how to make an access panel in drywall ceiling...
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4. Insulated Access Panels Often used in HVAC applications, insulated panels help maintain temperature control and energy efficiency.