Re: Think With Me Here

Posted by Billy NY on January 06, 2007 at 15:57:39 from (64.12.116.74):

In Reply to: Think With Me Here posted by Allan In NE on January 06, 2007 at 08:53:54:

Here is a material that has some uses, part of firestopping assemblies, accoustical properties for sound attenuation when used as insulation, ( I use it to build 1-2hr rated walls )

Made from Basalt Rock and Slag, and is offered in different types, accoustical fire batts A.F.B. and boards, ( must be stiffer, nevr used them ) You compress the batts 50% in what the U.L. fire resistance directory calls the annular space, (the open space between a pipe and the concrete deck it passes through), the material is used to fill the space, compressed tightly in there and then is usually covered with 1/2" firestop type caulk. A typical use for a through floor pipe penetration fire stop assembly, seals the floor for an hourly rating, 2-3 hrs. I like the material, not much of an itch factor when installing it. It does a good job of stopping sound,does not burn and tolerates high temperature. Might work well on a cab.

• Roxul

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