I do not know which tape or material to use for insulation or flex

Do not pick tape by color or what is lying nearby. Match the project spec, manufacturer listing, application, and foreman direction before sealing/wrapping.

Stop if

• I have [tape/material] and I'm sealing [application]. Is this the approved material for this spec/manufacturer detail?

Watch out

• Do not swap cloth tape, foil tape, mastic, or listed flex tape because it “sticks good.”

Check

• Identify what you are sealing: flex inner liner, outer jacket, vapor barrier, duct wrap seam, or insulation repair.
• Check material label/listing and project spec/submittal.
• Ask if the tape/adhesive is approved for that use.
• Do a clean mock-up if directed before continuing.

Steps

• Identify what you are sealing: flex inner liner, outer jacket, vapor barrier, duct wrap seam, or insulation repair.
• Check material label/listing and project spec/submittal.
• Ask if the tape/adhesive is approved for that use.
• Do a clean mock-up if directed before continuing.

More in Insulation, Liner & Vapor Barrier