TOPIC: Vent Tape

Ha!  Whenever I am in a hot attic and there is a tear in some duct work, I find a nice spot upwind to perch and enjoy the breeze for a while!

That reminds me; when I used to install systems as a retrofit, we would get all the hardware installed and up and running. We would fire it up and let it run in the attic while we did the ducting runs. We would be nice and cool and when we came down for a break, the homeowner would be sweating away and ask us how we could stand it up there. "Trade Secret!" <grin>

That's a great story Dana!  You robbed Peter to pay Paul, um, yourselves!

lol

I have also seen that kind of tape used. I found this in an attic the other day. Duct was taped together, was 6ft. to long and was not attached

For those of you who don't know, the proper way to connect two sections of duct together is with the proper 200degree rated duct tape.
Flex duct is actually two layers. It comes in 10, 25 or 50 foot lengths, depending on the diameter.  The inner layer is a clear plastic reenforced with a spiral spring steel wire. This is wrapped with about 1 inch of fiberglass insulation which is held in place by the outer black or silver sleeve.  There is also grey but we know that that will break down rapidly if exposed to light. To connect two pieces, a metal splicing collar is used.  The outer layer and insulation is skinned back and the collar is inserted into the inner liners, zip tied and then taped securely. Some also seal the joint with Glenncoat or other sealer.  The insulation and outer covering is then brought together and again zip tied and taped. There should be no inner liner, insulation or metal showing.

I guess I am just old school.  Give me metal ducting with the joints sealed with Pookie and the whole thing wrapped with insulation.  No rats, no leaks, no odors, no energy loss, no dust in the house, and can be properly cleaned with a rotary brush if and when needed.