Insulate your new or existing 6 in. duct pipe with this Master Flow 6 in. diameter Fiberglass Insulation Ductwork Sleeve. Enjoy consistent air temperature and reduced system condensation and noise. On new pipe installation - simply slide the sleeve over the 6 in. duct pipe as it is being installed. For existing duct pipe up to 6 in. in diameter - cut the jacket length wise (insulation is pre-cut) and wrap around the pipe.
(11 reviews) 11
45%of customersrecommend this product5 of 11reviews
Rating Breakdown11 reviews
45%of customersrecommend this product5 of 11reviews
Overall good product, but there seems to be a shortage of the foil sleeve cover. Every package comes up short and you end up with more insulation left over, which in turn makes you buy more packages to make up the difference, and you still end up with a half roll of just insulation at the end. This works out ok if you can find other uses for the leftover insulation.
Pros: Good Size & Weight
Cons: Difficult to Install, Difficult to Use, not enough foil sleeve
0out of0found this review helpful.
Review 2 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
I used 15 rolls of this duct insulation - the 6 and 8 inch - to repair existing ductwork in a very confined crawl space in my 40 YO house. That meant the insulation wrap had to be cut. Here, it is important to have very sharp scissors to prevent snagging and tearing. Other than that, it was very easy even in the limited work space. After cutting the wrap lengthwise, the insulation was laid over the duct, then the wrap was laid over and pulled onto place. Using flexduct tape, put 3 strips - one at each end and one in the middle to make a temporary hold Then ran tape the length of the seam. Simple as that. Installation on new ducts would be even easier since no cutting would be required. The insulation quality is very good and the outer wrap is strong yet very flexible. I highly recommend this for anyone to use and the price was very reasonable. This was my first try at doing the ducts and, for just a diy-er, it went very well.
21out of21found this review helpful.
Review 3 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
I agree with the previous comments regarding trying to cut and tape this over existing ducting. It probably works pretty well if you can just slide it over a piece of duct before assembly. For retrofit work, I'd suggest buying foil backed batting and cutting to size instead.
Pros: precut to size
Cons: Difficult to Install
6out of6found this review helpful.
Review 5 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
The Duct sleeve is NOT what you paid for! The foil wrapper is about 4 to 6 inches too short! So measuring purpose instead of 5 feet use 4 1/2 feet for the length of the insulation. I did my best by trying to stretch the foil to full length but it still was short! If one can find a duct insulation on the internet for a comparable price buy it. Also Home Depot doesn't carry 5 inch diameter duct insulation. I used the 6 inch diameter .
Cons: foil too short.
3out of5found this review helpful.
Review 7 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
I bought 6 rolls of the 8" to cover my old duct work. I did as one reviewer did and cut the sleeve instead of taking the duct apart. This is not an easy project to do by your self. The foil wrap on the sleeve is very fragile and tears easily. It might be easier to take the duct apart. But if I do my other ducts in the house, I will just tear out the old and use new 8" flexible ducting. Its R8 rated AND cheaper. Live and learn, but for me this product is a never buy it again item.
Cons: Difficult to Install, Difficult to Use
5out of7found this review helpful.
Review 9 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
This product comprises a 6' long tube of aluminum foil, surrounding a sheet of fiberglass wool. To fit to new ducts, you pull the tube over the duct and tape into place prior to installation.
I was in the position of having to fit to existing ducts. Instructions tell you to first secure the foil to the fiberglass with tape, then split the aluminum cover lengthwise; the fiberglass is already split so you're forming a two-layered sheet. Wrap this sheet around the duct and tape it closed.
In practice, I found this to be immensely difficult and frustrating. Does adhesive tape stick to fiberglass wool? Not hardly, so the foil and fiberglass keep coming apart and going separate ways. Like in 99% of houses, my duct-work is in awkward, hard to get at places, so I was at screaming point in no time at all.
My options; 1. wait until I have at least one other pair of hands to help, 2.disassemble the ducts and treat as a new installation, keeping the foil wrapper intact, or 3. return the three unused packets for refund. I'll probably go with #1, but I wish I'd known that fitting to existing ducts is NOT a one-person job before buying the product.
12out of16found this review helpful.
Review 10 for 6 in. Diameter R-6 Ductwork Insulation Sleeve
As a previous reviewer mentioned, this stuff needs to be cut to install on existing duct work. Also as he mentioned, forget about trying to tape the foil cover to the fiberglass - tape won't stick to fiberglass. After a couple of tries, I ended up sliding the foil cover over the duct first, using a small piece of tape to hold it in place if necessary. Then I slid the fiberglass between the duct and the foil. Once things are lined up, tape the seams. A second pair of hands would have been helpful in some places, but I did most of it alone.