A/C duct repair - Help!

Maybe you could tell us what happened to your ducts that they need to be repaired. Are we talking about a 2" hole, or what? Are these rectangular ducts, or round? Do you know how to use tin snips and a rivet gun?

It is probably best to replace the damaged section.

You should use UL181 approved duct tape [not rubber back duct tape.] You should also use sheet metal collars to join the repaired duct to the new section of duct, and it is advisable to use mechanical restraint [zip ties.] The 'coiled duct in a box / bag' is flexible duct. You can use a sharp large knife to cut the duct, and a diagonal cutter to cut the spring [do not use aviation snips to cut the spring, it will ruin them.] Good luck.

Lowes has some of those round insulated ducts in 25 and 50 foot lengths. They are of a much higher R value than your old ones, which means you get more cool air in the summer and warm air in the winter and it saves on your heating bill.

It is a vey easy job to replace the old with the better quality new ones.

valvejob wrote in news: snipped-for-privacy@4ax.com:

Last time I used some 8" it had, I think, R6 stamped on it.

"Zephyr" wrote in news:3ZadnYgnlrbyyjjbnZ2dnUVZ snipped-for-privacy@championbroadband.com:

I've used, and have seen HVAC guys use, Polyken tapes. This one meets the spec you mentioned.

Yep!

And the stuff comes is wider widths which I have seen on new installations in church buildings.

GREAT STUFF. It can take higher temperatures can can be used with gas dryer vents. Holds as well as screws but doesn't "snag" or catch lint.

Thanks, everyone, for your suggestions. :-)

And the ZIP file has what virus?

Never install a smaller Return air duct! The 14" flex duct could even be too small!

udarrell