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Old 12-08-2017, 01:58 PM   #1
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Membrane with IC 60 rating

I am pricing a job in a condo that requires a IC rating of 60. I can not seem to find a product that has that high a number both Laticrete 170 mat and Noble sis mat are short of this number. Anyone know of membrane that has a rating north of 60.

Thanks Michael
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Old 12-08-2017, 02:11 PM   #2
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What is the substrate?

Saw this one the other day.

Proflex 90
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Old 12-08-2017, 02:55 PM   #3
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Concrete. Thanks but it looks like the manufacturer of that product has no distribution in Canada.
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Old 12-08-2017, 05:40 PM   #4
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If your installing tile over it make sure it is rated for tile. I would dig a little deeper than "sure no problem".
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Old 12-08-2017, 06:10 PM   #5
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Super sam by NAC.
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Old 12-08-2017, 07:30 PM   #6
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Super Sam is not 60. It looks like a lot of manufactures of membranes advertise as x rating, but after reading the fine print they base that number with an acoustical ceiling. Once that number is subtracted it looks like most sound membranes rated for tile are around 50.
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Old 12-08-2017, 07:46 PM   #7
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Its not quite that easy.. is there a ceiling? Thickness of slab? I assume tile or stone?
If someone tells you they wiil get 60 without these answers,...
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Old 12-08-2017, 08:30 PM   #8
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Come on guy Super Sam 3.
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Old 12-08-2017, 08:42 PM   #9
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How about Laticrete 125 adhesive along with 170 sound isolation membrane? You'd have to talk to them to determine, but I think it would work. The IC test results vary considerably based on the frequency...trying to achieve that over the entire frequency range is going to nearly impossible with a solid surface.
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Old 12-08-2017, 08:52 PM   #10
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Wink

Its IIC.
It’s hard to tell somebody what they'll get, if you don’t know what they got !
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Old 12-09-2017, 12:05 AM   #11
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Yep, the thickness of that concrete makes a difference.

Laticrete 125 is in the 40's.
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Old 12-09-2017, 08:07 AM   #12
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I will get in touch with the condo on Tuesday and get more info. I thought about using laticrete 170 with 125. Got a price from my supplier of $118 per 25 lbs bag. Also being from Canada there is no distribution for some of the smaller companies mentioned. Thanks for the help and info so far.
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Old 12-09-2017, 09:07 AM   #13
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Did a seminar in Orlando with Eric and we got on this topic. Never realized how complicated it was deciphering the numbers that manufactures advertise. Let the condo association give you the spec to follow (and how you get there). Its way beyond our pay grade!!
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Old 12-09-2017, 12:55 PM   #14
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Cool

A better way to look at it is, what does the membrane add to the entire assembly.
This is expressed by a delta number ,tested to by ASTM 2179.While not exect,you add the delta to the assembly.( slab,ceiling,flooring ) that is why you need to know whats there.
The slab can range by 10 points depening on ,thickness,density,connection to wall,etc,etc.
A ceiling could be worth 10 points depending on several factors.
Without a sound rated ceiling it is unlikely you will get to a 60 even with a membrane .(any)

With all that said Mapesonic 2 offers a delta of 21...(the higher the better)
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Old 12-11-2017, 08:12 AM   #15
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Who is this E3 guy anyway?
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