Xgm3
Active Member
I was at Home Depot today and saw this stuff. http://www.lowes.com/pd_82480-2256-INS541LD_429 Would this stuff work for and acoustic panel or bass trap?
Green Fiber insulation
- Thread starter Xgm3
- Start date
Re: Green Fiber insualtion
It should do fine for mid-to-upper frequencies but I'm not sure how well it would fare for low frequencies. Either way, I don't think it's a good choice for anything other than a framed panel mounted on a ceiling because it'll sag/settle if it's hung vertically.
It should do fine for mid-to-upper frequencies but I'm not sure how well it would fare for low frequencies. Either way, I don't think it's a good choice for anything other than a framed panel mounted on a ceiling because it'll sag/settle if it's hung vertically.
malsackj
Well-Known Member
Re: Green Fiber insualtion
We should look for information on Absorption Coefficients like these from OC703.
This would allow us to compare and see how effective they will be in comparison to a known standard.
Sound Absorption Coefficients, ASTM C 423
Mounting: Type A – Material placed against a solid backing.
Product Thickness, Octave Band Center Frequencies, Hz
Type in. (mm) 125 250 500 1000 2000 4000 NRC
701, plain 1 (25) .17 .33 .64 .83 .90 .92 .70
2 (51) .22 .67 .98 1.02 .98 1.00 .90
703, plain 1 (25) .11 .28 .68 .90 .93 .96 .70
2 (51) .17 .86 1.14 1.07 1.02 .98 1.00
705, plain 1 (25) .02 .27 .63 .85 .93 .95 .65
2 (51) .16 .71 1.02 1.01 .99 .99 .95
703, FRK 1 (25) .18 .75 .58 .72 .62 .35 .65
2 (51) .63 .56 .95 .79 .60 .35 .75
705, FRK 1 (25) .27 .66 .33 .66 .51 .41 .55
2 (51) .60 .50 .63 .82 .45 .34 .60
703, ASJ 1 (25) .17 .71 .59 .68 .54 .30 .65
2 (51) .47 .62 1.01 .81 .51 .32 .75
705, ASJ 1 (25) .20 .64 .33 .56 .54 .33 .50
2 (51) .58 .49 .73 .76 .55 .35 .65
Values given are for design approximations only; production and test variabilities will alter results. Specific designs should be evaluated in end-use configurations.
This was taken from OC 703 PDF.
We should look for information on Absorption Coefficients like these from OC703.
This would allow us to compare and see how effective they will be in comparison to a known standard.
Sound Absorption Coefficients, ASTM C 423
Mounting: Type A – Material placed against a solid backing.
Product Thickness, Octave Band Center Frequencies, Hz
Type in. (mm) 125 250 500 1000 2000 4000 NRC
701, plain 1 (25) .17 .33 .64 .83 .90 .92 .70
2 (51) .22 .67 .98 1.02 .98 1.00 .90
703, plain 1 (25) .11 .28 .68 .90 .93 .96 .70
2 (51) .17 .86 1.14 1.07 1.02 .98 1.00
705, plain 1 (25) .02 .27 .63 .85 .93 .95 .65
2 (51) .16 .71 1.02 1.01 .99 .99 .95
703, FRK 1 (25) .18 .75 .58 .72 .62 .35 .65
2 (51) .63 .56 .95 .79 .60 .35 .75
705, FRK 1 (25) .27 .66 .33 .66 .51 .41 .55
2 (51) .60 .50 .63 .82 .45 .34 .60
703, ASJ 1 (25) .17 .71 .59 .68 .54 .30 .65
2 (51) .47 .62 1.01 .81 .51 .32 .75
705, ASJ 1 (25) .20 .64 .33 .56 .54 .33 .50
2 (51) .58 .49 .73 .76 .55 .35 .65
Values given are for design approximations only; production and test variabilities will alter results. Specific designs should be evaluated in end-use configurations.
This was taken from OC 703 PDF.