Portland, Maine

There is a local supplier, Energy Innovations , located on Fox St downtown. They sell UltraTouch Acoustic Cotton at very impressive prices, about half of what I recently paid online. Their main focus is environmentally-friendly construction materials, I can't imagine they get many calls from recording studios.

This material specs out fantastically, its absorption coefficient is pretty close to 1.0 over most of the audio spectrum. It is available in 5.5" and 3.5" thicknesses, in both 16" and 24" wide batts.

This stuff is pretty far from rigid, but it works very well as a sound absorber. I've made broadband absorbers and gobos out of it and I'm thrilled with the performance so far. Though I'd be very curious to see how it performs side-by-side with rockwool and rigid fiberglass.

Anyway, this place in Portland sells packages of 5.5" thick batts, 24" wide, 94" long in packs of 4 (63 sq ft) for $60. The same product, 16" wide in a 5-pack (52 sq ft) is $49.

In terms of DIY acoustic treatments on a budget, I think this stuff is a STRONG contender. I think the 16" wide batts placed between ceiling joists and covered with cloth is a nontoxic, huge performer for someone building a basement studio, at a price not much more than normal fiberglass insulation, with better specs and non of the toxic fiberglass handling stuff.

VERY cool, though admittedly it's a bit disconcerting to realize that for what I spent just a few weeks ago having this stuff shipped out, I could have picked up more than twice as much cotton from a local, green, environmentally conscious business.

I have found a place in Little Rock, Arkansas that has a surplus of Knauf 160, 2" ridgid F/G insulation. It is Johnson Products LLC,[formaly Morrow Insulation], 6209 MurraY ST. PHONE 501-568-5496, ask for "Tim" I paid $54.00 a bundle of 32 pieces of 2"x24"x48" sheets. Knauf has an accoustical chart for their insulation on their web site.

This forum has been very useful to me in building my studio in a 100 year old farm house. Thanks Ethan.

Joe Jewell

might want to look at spin glass as well.
http://www.jmpipeinsulation.com/spinglas.php

Here's the Pittsburgh, Pennsylvania area source for the Owens Corning 700 series products.

George V. Hamilton Co.

They stock 703, 703FRK, 705, 705FRK and most likely more. They also have the Johns Manville IIG Min Wool 1200 products. Very nice people to deal with and good pricing.

As of April 2006:
703 $0.70 sq. ft.
703FRK $1.01 sq. ft.
705 $1.23 sq. ft.
705FRK $1.55 sq. ft.

This was all 2" in 2'X4' squares.

If you're in the Toronto or Southern Ontario, Canada area http://www.acoustiguard.com will gouge you with 2" fiberglass 2’x4’ finished with fabric and hardened edge, etc. for $12 /sq. foot - $96 each!. 2'x4' unfinished mineral fibre is $17.68 per sheet.

Much better is Multi-Glass Insulation Ltd.. $1.45 / sq. foot for 2" OFI-48 (Ottawa Fibre equivalent of 703). They will do any size order.

3925 Steeles Avenue East
Unit 1 & 2
Brampton, Ontario
L6T 3Y7
Telephone: (416)798-3900

http://www.ofigroup.com/ns_site_map.htm

Add that with some 3M™ Super 77™ Classic Spray Adhesive and Muslin and you've got panels for $22 CAD.

Acoustical cotton Brooklyn N.Y.

Prices:
R-13 24"x94"x3.5" $116.00 8 pieces
R-19 24"x94"x5.5" $94.50 4 Pieces

Marjam Supply Company
20 Rewe St
Brooklyn, NY 11211
718-388-6465
http://www.marjam.com

CALIFORNIA - LOS ANGELES AND SAN DIEGO

CWCI Insulation of L.A.
727 S. Ninth Avenue
City of Industry, CA 91745
Phone: 626-369-4424
Fax: 626-330-7771

CWCI Insulation of S.D.
7949 Stromesa Court, Ste T
San Diego, CA 92126
Phone: 858-530-0414
Fax: 858-578-8681

Central Canada
Winnipeg, MB

Brock-White
450 Sheppard St.
(204)694-3600
(888)786-6426

Roxul RXL-80 Mineral Wool
2' X 4', 2" thick panels @ 8 cubic ft. density

Price as of June 06: $8.68/sheet
Sheets are sold in bundles of 4.

In the Greater Philadelphia, PA area:

Knauf fiberboard is available from:

General Insulation Company
King of Prussia, PA
(610) 337-5999

Ask for Doug.

http://www.insulationworld.com

East Coast, Virginia specifically, if you need a large amount, this is the place to go. Please note, if you're buying 1-2 boxes, better to look elsewhere, because they are a volume dealer and they only ship point-to-point.

Specialty Products and Insulation Co.

http://www.spi-co.com

4701 Acline Drive
Tampa, FL 33605


They just quoted me 2" 703-FSK at $1.48 sqft sold in a 48 sqft bundle of 2x4 panels.

705-FSK was $2.27 sqft

NEW JERSEY


General Insulation carries Knauf fiberglass board:

Elizabeth Branch

1065 East Grand Street
Elizabeth, NJ 07207
Branch Mgr. Dan Comer
Phone: (908) 353-4900
Fax: (908) 353-6400
(877) 353-4900



Camden Branch

2600 Mr. Ephraim Avenue
Camden, NJ 08104
Branch Mgr. Rick McMullen
Phone: (856) 614-9000
Fax: (856) 614-9200
(877) 406-6407

Chicago IL!!

Zechman Building Supply
-carries roxul brand

312 773 6600
-----------------------

NextGen building Supply
-carries Knauf

630 629 3356
-----------------------

SPI
-carries Johns Manfield 130

630 773-1200
----------------------
or go green!

Greenmaker Building Supply
-carries Ultratouch Insulation (recycled denim)

773 384 7500

(guess who's been working on his studio's acoustics)

Does anybody have any southern New Hampshire or northern Massachusetts sources for OC or equivalent rigid fiberglass panels? I've tried a lot of places and still no luck.

Thank you for any ideas.

Bob

NOTICE...

I just received notice from my supplier that OC has announced a 9% price increase at the wholesale level as of Jan 1, 2007.

Bryan

Upstate NY - Ithaca
Kelmar Construction (607) 273-0333

Roxul Mineral Fiber Insulation - REALLY CHEAP
2x4', 4", 4 pounds/cubic foot: $17.40 for 3 sheets (24 sq feet)

15"x4', 3" 4 lbs/cubic foot: $26.88 for 64 square feet

James Manville ISO300 - 2'x4', 3" at 3 pounds/ cubic foot density: ~$9/sheet

Always in stock, or can get it within the week. Tell Barney that David sent you

Steels in Prince George,BC Canada, Fibrex FBX 1280 @
$1.02 per Sq.Ft. http://www.steels.com/

http://www.fibrexinsulations.com/products/industrial_board.html

Salt Lake City, Utah
DAW Construction Group
12552 South 125 West
Draper, Utah 84020-5447
801-553-9111 Toll Free 1-800-748-4778
OC 705 4' x 8' x 2" $1.74 per square foot ($55.68 per sheet)
OC 703 4' x 8' x 2" $1.00 per square foot ($32.00 per sheet)
Rope

I just picked up 2 bundles of 2" unfaced Johns Manville at EJ Bartells in Seattle (http://www.ejbartells.com/). Each bundle has 9 2x4 sheets, and I think the total for both was about 120.00. I'm going to pick up some burlap today! Very excited....

Montreal, Quebec, Canada

Owens Corning 703 Rigid Fiberglass

Isofab inc.
514-738-1916

In Australia I'm using Ecopink Rigid Glass Wool nominal density 48kg/m3
50mm (2") thickness has following specs compared to 703

Material: 125 Hz, 250 Hz, 500 Hz, 1000 Hz,2000 Hz, NRC
703: 0.17, 0.86, 1.14, 1.07, 1.02, 1.00,
Ecopink: 0.33, 0.74, 1.18, 1.11, 1.12, 1.05,

also available in 100mm (4") thickness
http://www.ecopink.com.au
Available in Adelaide through Soldertech

Hope this helps

Cheers

Hi there!

New to the forum, but an Ethan´s Fan!
Thanks for clearing up all my disturbed thought about acoustics, heh!

Somebody can give me just ANY tip on where to get something similar to the #705 rigd fiberglass down here in Buenos Aires, ARGENTINA? International shipping would be really high, right?

Thanks in advance

SpaceFolder

CURRENT SPI PRICES and
DALLAS/FORTWORTH

SPI [800.788.7764 nationally, 214.956.7781 Dallas, FTW #?] carries OC, Fibrex etc. I just picked up a lot of Fibrex 8 lb. 2" at $.59/sq.ft. Not sure their exact OC price but the Tulsa prices per sqare foot for 2" were:

-Fibrex 1280 (8 lb.) $.49
-OC 703 (3 lb.) $.84
-OC 705 (6 lb.) $1.52.

So Dallas prices are a little higher. In this case, the 705 costs 3x as much as the denser Fibrex even though the Fibrex handles lows better (see bob golds coefficients).

DALLAS, TX

HERE YOU GO:

Link to: SPI Specialty Products

SPI SPECIALTY PRODUCTS
11232 Leo Ln.
Dallas, 75229
(972) 620-1009

They have EVERYTHING you need!

Go to:
http://www.insulation.org/membership/
There are contacts to all the local insulation distributors nationwide. Also a good source for info. The fiberglass & mineral wool boards should be common stock for any insulation supplier.
Anything in the mid-atlantic try McCormick Insulation Supply 800-989-7013.

TUCSON ARIZONA
Pacific Insulation Supply
3761 E 43rd
520-670-1157

John Mansfield rigid fiberglass, as well as rock wool/ roxul mineral in stock.

SPI
1513 Sunrise Ave.
Raleigh, NC 27608
phone: 919-828-7102

I am not sure if this addy has been listed but this is a good source for sound proofing/deadening foam products

http://www.foamandupholstery.com/pyramid_foam_tiles___sheets.htm

I'll let the link to this foam vendor stand for now. But this thread is for local sources of rigid fiberglass and equivalent materials, not foam. Finding mail order foam is not difficult, and there's much less need for a link to that here. Also, it's difficult to recommend any vendor that claims their foam offers diffusion, since that shows they don't even understand what it does.

Axeman, do you have any direct experience with this vendor?

--Ethan

Ya I bought some from them
they have some really good prices and got it out to me fast. I plan on buying some more from them soon

I really was not sure of exactly what types of materials these guys was looking for.

but to be perfectly honest you will probably find just as good of a deal at your local Lowes or Home Depot for a lot of this rigid foam and fiberboard insulation I am assuming that the folks are looking to find materials for sound isolating and sound deflection pannells for a DIY home studio Project.

I would also mention that roofing foam is very rigid and flame retardant whch works excellemt for sound proofing that very easy to work with for making shaped wall corners a and overhead deflection panels.
it comes in several thicknesses and can be glued together with spray adhesive to get the desired shapes someone may need to make and can also be painted.
you can find it at most building materials suppliers as well.