Are there suggestions out there as to the best way to insulate newly installed speakers!  I have been working to improve the  tightness of my 22 year old home but after that big effort, I installed 10 speakers in 5 rooms.  This, as one might suspect, has resulted in several holes leading from unconditioned spaces to conditioned spaces. Some folks say just drape insulation over the new speakers while other say build a box to protect the innards of the speakers from fiber glass, dust, etc. The latter is supposed to enhance the quality of the music emanating from the speakers but there are many opinions out there!

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From techstreet -- holder of some of the UL documents.... about UL-1715

"This test method is intended for use in the evaluation of the flammability contribution of wall materia l assemblies, ceiling material assemblies, or both, exposed to early fire growth under specified room fir e exposure conditions. The effectiveness of fire barrier materials as protection for other combustible materials or components within the assembly is of primary interest for this evaluation."

The point of suggesting to look for UL1715 and the ASTM numbers is that it might be that other good building materials would be found that could do a better job for John.  That was the reason for suggesting keywords for searches.

The Tenmat hats themselves provide the flame spread,  the fire stop foams/sealants, just cover the cases where flames might seep under the hats and into the attic.   They also stop the hats from rattling and dancing around in the attic when loud rock and roll is played  :-)

good point on the dancing. 

my only concern is that folks dont get the impression there are fire safe foam's out there.  if you ignite an piece of FS 25 foam and take the flame source away, the foam will self extinguish.  But, the tech data sheets the foam manufacturers provide will have footnotes saying their foam requires a 15 minute thermal barrier between the foam and the people.  that's becasue foam has a low self ignition temperaturte, and it is very good at holding heat in.  it doesn't take long for foam to burn when it is exposed to heat in excess of 450 degrees. 



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