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height of the listening position Studio Monitors
Old 4 days ago
  #121
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Quote:
Originally Posted by bertru View Post
thanks but because of shipping costs, I will forget this product.

However, I find this product in france :

URSACOUSTIC Panneau N - URSA

density is between 15 and 20 kg/m3 and GFR is equal or superior to 4000p.s/m2

these technical features are very different from those of the 7OW-03, but for a 13,5cm deep panel mounted in corner with about 18cm air gap (max) the simulation gives me 0,62 at 100 hz.

not too bad for my bass issue.
In great tickness over 30 cm.

I live near Aix-en-Provence, you can find knauff in shop as chausson matériaux.
Old 4 days ago
  #122
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I find this one :

PNU 32 - URSA

GFR is sup or = 10kps/m2

when I enter the data, the curve looks more regular.
Attached Files
File Type: pdf ursacoustic absorbtion 2.pdf (125.8 KB, 2 views)
Old 4 days ago
  #123
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Quote:
I live near Aix-en-Provence, you can find knauff in shop as chausson matériaux.


I didn't know this store.

I found the knauf ultracoustic P
Panneau de laine de verre ULTRACOUSTIC P - Dim. 0,60 x 1,20 m - Ep. 45 mm - R 1,20 - 558331-1 | Chausson Materiaux

the pdf gives an GFR average at 14,62 but for the "ultracoustic soft" (maybe equal to "ultracoustic p").

I don't know how to analyse those graphics. I suppose that a smoother curve is better ?

thank you dinococcus
Attached Files
Old 4 days ago
  #124
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ultracoustic soft = 14,62kp.s/m2
ultracoustic p = 5 kPa.s/m² (AFr5)
Old 4 days ago
  #125
Lives for gear
Quote:
Originally Posted by bertru View Post


I didn't know this store.

I found the knauf ultracoustic P
Panneau de laine de verre ULTRACOUSTIC P - Dim. 0,60 x 1,20 m - Ep. 45 mm - R 1,20 - 558331-1 | Chausson Materiaux

the pdf gives an GFR average at 14,62 but for the "ultracoustic soft" (maybe equal to "ultracoustic p").

I don't know how to analyse those graphics. I suppose that a smoother curve is better ?

thank you dinococcus
The green curve shows the air is not useful.
The ondulation on the blue curve show the presence of air gap.

The tickness must linked with the GFR. There are a limit in performance beyond a tickness.
There are other brand than knauff.
Old 4 days ago
  #126
Lives for gear
Quote:
Originally Posted by bertru View Post


I didn't know this store.

I found the knauf ultracoustic P
Panneau de laine de verre ULTRACOUSTIC P - Dim. 0,60 x 1,20 m - Ep. 45 mm - R 1,20 - 558331-1 | Chausson Materiaux

the pdf gives an GFR average at 14,62 but for the "ultracoustic soft" (maybe equal to "ultracoustic p").

I don't know how to analyse those graphics. I suppose that a smoother curve is better ?

thank you dinococcus
The green curve shows the air is not useful.
The ondulation on the blue curve show the presence of air gap.

The tickness must linked with the GFR. There are a limit in performance beyond a tickness.
There are other brand than knauff.

What is your town of residence?
Old 3 days ago
  #127
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Quote:
What is your town of residence?
I live in Boulogne Billancourt near paris.

"Chausson materiaux" seems to be the store witch provide he largest quantity of slab insulation products.

Here is a list of all mineral fibre slabs without kraft :

Fiber glass :

Isover GR32 NU (Afr15)
Panneau de laine de verre GR 32 NU - Dim. 0,60 x 1,35 m - Ep. 100 mm - R 3,15 - 674255-1 | Chausson Materiaux

Isover Multimax 30 NU (Afr15)
Panneau de laine de verre MULTIMAX 30 NU - Dim. 0,60 x 1,35 m - Ep. 45 mm - R 1,50 - 446106-1 | Chausson Materiaux
Afr15

Knauf TP116 (Afr5)
Panneau de laine de verre TP 116 - Dim. 0,60 x 1,35 m - Ep. 150 mm - R 4,05 - 789519-1 | Chausson Materiaux

Rock Wool

Rockwool rockmur NU (Afr10)
Panneau de laine de roche ROCKMUR NU - Dim. 0,60 x 1,35 m - Ep. 45 mm - R 1,20 - 331517-1 | Chausson Materiaux

Rockwool rockplus NU (Afr30)
Panneau de laine de roche ROCKPLUS NU - Dim. 0,60 x 1,35 m - Ep. 75 mm - R 2,25 - 578532-1 | Chausson Materiaux

Isover Domisol LR (Afr49)
https://www.chausson-materiaux.fr/ar...p-30-mm-r-0-85

my problem is that in the products DOP certificate, I do not have the GFR ps/m2)
Instead I see standards like Afr5, Afr10, Afr15 ..
I did research without success
I only found a pdf of isover where page 137, they make a connection between acoustic absorption and these standards. However, I find it blurring.
Attached Files
File Type: pdf Guide-Acoustique-Batiment.pdf (11.80 MB, 2 views)
Old 3 days ago
  #128
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acoustic absorbtion of isover products (page 137 - 138)
Attached Files
File Type: pdf isover 1.pdf (157.2 KB, 3 views) File Type: pdf isover 2.pdf (113.9 KB, 2 views)
Old 3 days ago
  #129
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Two more rockwools :

URSA PNU 32 equal or sup to 10000ps/m2
PNU 32 - URSA

URSA PNU 38 GFR unknown - density betwenn 15kg/m3 and 20kg/m3
PNU 38 - URSA
Old 3 days ago
  #130
Lives for gear
Isover ibr gfr=5000
Old 2 days ago
  #131
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It looks like it’s fluffy while i’m looking for slabs.
Old 5 hours ago
  #132
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I finally go with semi rigid Knauf ultracoustic soft slabs. 14kps/m2. I’ll build 18 panels 120*60x13,5
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