I need to install a dryer periscope vent in my new dryer unit, However, it needs to be sealed for leaks. What type of tape should be used to tape a periscope dryer vent?
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First, what you do not want to use is duct tape, the adhesive fails under the extreme temperatures.
For dryer vents and HVAC ducts, you should seal seams with a foil backed tape. This is designed to be airtight and handle the temperature swings that would cause other types of tape to fail.
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