pdlstl
New member
Rigid fiberglass FAQ's and question.
Don't know if this has been posted before or not but it sure enlightened me.
http://www.jm.com/insulation/faqs/69.htm
Scroll down for the Sound FAQ's.
Like everyone, I've been searching for a supplier who carries OC 703 (or 705) in the Fort Worth area. However, I came across a supplier who carries the Johns-Manville 800 Series Spin-Glas. This is supposed to be the JM equivalent of the OC 700 Series.
The specs of the JM vs. OC follows:
JM 814 plain 2"
125-0.24
250-1.00
500-1.11
1000-1.08
2000-1.06
4000-1.05
NRC-1.05
OC 703 plain 2"
125-0.17
250-0.86
500-1.14
1000-1.07
2000-1.02
4000-0.98
NRC-1.00
My room is 14'x16'x9' (ceiling). The walls are painted sheetrock, the ceiling is sheetrock with a popcorn surface (blown-on) and the floors are terra cotta tile. The room has frequencies bouncing all over it.
I want to make panels to hang on the walls/ceiling for some absorption/reflection control.
Will the JM product be just as good as the OC?
Thanks,
Earl
On edit:
The supplier is: http://www.eowood.com/ for you in the North Texas area. The site seems to have some broken links but you can get an idea of what they carry.
Earl
Don't know if this has been posted before or not but it sure enlightened me.
http://www.jm.com/insulation/faqs/69.htm
Scroll down for the Sound FAQ's.
Like everyone, I've been searching for a supplier who carries OC 703 (or 705) in the Fort Worth area. However, I came across a supplier who carries the Johns-Manville 800 Series Spin-Glas. This is supposed to be the JM equivalent of the OC 700 Series.
The specs of the JM vs. OC follows:
JM 814 plain 2"
125-0.24
250-1.00
500-1.11
1000-1.08
2000-1.06
4000-1.05
NRC-1.05
OC 703 plain 2"
125-0.17
250-0.86
500-1.14
1000-1.07
2000-1.02
4000-0.98
NRC-1.00
My room is 14'x16'x9' (ceiling). The walls are painted sheetrock, the ceiling is sheetrock with a popcorn surface (blown-on) and the floors are terra cotta tile. The room has frequencies bouncing all over it.
I want to make panels to hang on the walls/ceiling for some absorption/reflection control.
Will the JM product be just as good as the OC?
Thanks,
Earl
On edit:
The supplier is: http://www.eowood.com/ for you in the North Texas area. The site seems to have some broken links but you can get an idea of what they carry.
Earl
Last edited:
