St. Gobain GGTAPE-1-7|16X100 Green Glue Noiseproofing Joist Tape, 1-7/16" x 100'

We are in the middle of replacing all the floors in our house. We used this product on top of the floor joists and under the 4'x8' sub flooring and affixed with screws. We temporarily did half of a room without and half with; you can hear a difference in sound transmission right away when walking on the floor.With the tape the walking sounds muffled, and the slight echo sound of large steps is reduced, with fiberglass insulation between the joists (which we are doing to maintain different temperature zones) foot traffic is all but silent in the room below, and talking is almost impossible to hear.Most people don't realize a floor is never rock-solid (unless you use rock). Floor joists can bow as much as 1/16th of an inch or more for large open spans when people are walking. If you're looking at this product to stop floor creaking, it certainly will stop wood on wood creaking as long as this is in between all wood contact points, but it has nothing to do with metal on wood squeaking (metal on wood is often the higher pitched "squeak" as opposed to a wood on wood "creak"); so make sure you adjust your screw gun so they go in slightly indented, almost flush with the sub floor. Buy a good $100 screw gun with an adjustable clutch, one overdriven screw can cause a squeak, although less likely in particle board sub floor, just do it right while it's easy so you don't kill yourself when you're done. Silent floors are not only very possible; they make your home feel great!Make sure you are hitting the center of the joists so the screws get a good bite and won't loosen over time, if you miss the joist, always take the screw back out; if the screw head snaps, use a nail punch and smack that thing into the joist where it can't squeak. Creaking usually comes from metal sliding on wood. Definately use screws and not nails; if you use nails you are, ironically, screwed. Nothing will save you from nails in sub floor or wall headers or footers if you don't like creaks. Also put this stuff between wall headers and footers; anywhere there is wood/wood contact. Don't skimp on 50 cents of tape and be stuck with a wood creak the rest of your life.200ft will cover approximately 10'x20' with standard 12" joist spacing.This stuff has a very sticky side, and the top has a plastic coating which makes putting on the subfloor easier than without it, it protects the tongue in grove when sliding the subfloor into position, and helps with maintaining the wax coating (make sure you get subfloor with a wax coating, which is the grey/brown coating at homedepot/lowes) for the tongue in grove to prevent wood on wood creaking at the seams. Although I haven't seen any subflooring sold without a wax coating in years. You can get wax subfloor sticks you can rub on for $1 if your subfloor doesn't have a wax coating or the coating rubs off while handling.This product is about 1/8th of an inch thick and squishes down to about 1/16th of an inch, it feels exactly like memory foam and if you push on the tape roll it stays indented for about 30 seconds before slowly returning to it's original shape.The floor also doesn't seem as "hard" when walking with this stuff... It's hard to tell exactly what we feel when walking on it, but when we tried half a room with and half without, you can tell when you're walking on it and when you're not. Even our kids could tell. It feels softer and firmer at the same time... we just kept saying "yeah I can tell", but we're not sure how to describe it, but it feels good. You can't tell with shoes on though. Hopefully it will reduce falling damage to our little kids knees and our old hips when we're ancient just slightly since it's a memory foam dampener.At this price ($25/100ft) it costs about $200 to do a 40'x20' house floor. Although that price is a little high for a little sound reduction and no creaking, we have 4 kids and 3 floors, and I would say it's worth the price of a car payment to enjoy even a few db of a reduction in Barney the dinosaur for about 7 years.When we finished a floor (1/2" drywall below, 12" joists, this product, R38 fiberglass between joists, 3/4" particle board on top, memory foam vapor barrier, and laminated 1/2" hardwood, we have to yell much, much louder to call someone who is right under us, in fact I think if we didn't have open stairs we wouldn't be able to hear each other unless the house was silent; all the noise from other rooms sound like it's coming from the stairs, not the floor above or below. It's taking some getting used to and is incredibly noticeable.I would say if you enjoy peace and quiet and/or hate floor creaking, and you're redoing your home or building a new one, this is certainly worth every penny.NOTE:Before we found this product we tried some joist tape we got from ebay for about half this price, which was blue instead of green, but it was some sort of rubber-like foam, it didn't hold the shape for a while like this product does and barely squished thinner, it also didn't have a plastic coating on top, and when we put it down, the subfloor started ripping it apart when sliding, it was completely pointless because you have to slide tongue in groove subfloor at least an inch or two to lock it in place, and even then it would start ripping the blue tape up! It's also about half as thick and had occasional large bubbles where there was only air. We peeled it off and threw it away and thankfully found this. Don't waste your money.

This is my first time building a subfloor for a living space, and I decided to use this to help with keeping joists from rubbing on the subfloor itself. After putting in the subfloor, the footfalls are a bit quieter, but the downside comes from not being able to use joist glue between the joists and the subfloor when you put this on.Only time will tell if that's a negative or not, but so far with a lot of construction foot traffic in here, it seems to be doing just fine.

Works great. Easy to apply by hand. I installed this on top of TJI I-joists with Advantech sub floor. Was a little nervous as this is a departure from the general guidance apply glue to the subfloor. Everything feels solid so far though. No squeaks or creaks. Very pleased!

I used this product on my basement living room ceiling joists to try to help eliminate some sound transfer to my upstairs living room. The biggest problem I have is that it didn't stick very well to the joist and so the morning after I applied it, I came downstairs to find half of it hanging down or completely fallen off. My drywallers looked at me like I was crazy for using the stuff and said there will still be plenty of transfer through the screws. Honestly I took that with a grain of salt and still like to believe that it provides some value, but there is no real way to know if the price you have to pay for this stuff is worth it.

We tore up the entire subfloor of my second story, sistered up every other joist, added multiple lines of solid blocking between all joists, added sound insulation, and then..... before we reinstalled new subfloor we added this joist tape to every surface that the subfloor will touch (joists and blocking). Why did I opt for this instead of just using construction adhesive, which most builders use? Because I wanted to be able to remove any subfloor panel I wanted (I didn't use tongue and groove for this reason too) in the future, AND it seemed worthwhile to me to provide separation between the wood of the joist and subfloor, which construction adhesive doesn't really do. This was based on much research on DIY blogs and soundproofing blogs.I am VERY glad I went with that choice. I and all the guys helping me with the installation couldn't believe what a difference this joist tape made. It certainly prevents problems associated with direct contact between the joists and the subfloor, and there seems to be validity to the statement that it reduces transfer of footfall noise -- the new sound (before installing pad and carpet) had a higher pitch, meaning it wasn't transfering below and resonating in the joist bays (though that could be helped by the roxul sound insulation we put there). It doesn't eliminate sound transfer, because the screws do provide a conduit for sound, but that is much better than continuous subfloor-joist contact for sure.With the leftover joist tape, we even used it on the parts on my creaky bed, and it truly worked there too!!I have already recommended this to friends, and will continue to do so.

Sticks to anything (raw lumber included). Easy to use, should help with low sound rumble transmission between basement workshop and bedroom above. Used shorter pieces rather than line entire joists, so the cribbing floats. 1/8 to 3/16 thickness, compressible. Perfect for me

Absolutely no noticeable sound deadening qualities.. Impact nor voice.

This material has a self-adhesvive that attaches to joists great. Once laid down it stays, easily allowing you to istall sub-floor.