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Advanced Building Products Inc. (http://www.advancedflashing.com)
AECDaily (http://AECdaily.com)
Asphalt Roofing Manufacturers Association (ARMA) (http://www.asphaltroofing.org)
Builder Magazine (http://www.builderonline.com)
Building Science Corporation (http://www.buildingscience.com)
Cabot (http://www.cabotstain.com)
Cedar Shake and Shingle Bureau (http://www.cedarbureau.org)
CertainTeed Siding (http://siding.certainteed.com/cside/index.html)
Crane Plastics (http://www.craneplastics.com)
Energy & Environmental Building Association (http://www.eeba.org)
Foard Panel Inc. (http://www.foardpanel.com)
Home BUILDER Magazine (http://www.homebuildercanada.com)
Home By Design (http://homebydesignshowhouse.com)
Huttig Building Products (http://www.huttig.com)
Katz Roadshow (http://www.KatzRoadshow.com)
Longfellow's Cedar Shingles (http://www.longfellowscedarshingles.com)
Louisiana-Pacific Corporation (http://www.lpcorp.com)
Maibec Cedar (http://www.maibec.com)
MP Global Products (http://www.mpglobalproducts.com)
NAHB Research Center (http://www.nahb.org)
North American Wholesale Lumber Association (http://www.nawla.org)
Northwest Wall and Ceiling Bureau (http://www.nwcb.org)
Oikos Green Building Source (http://www.oikos.com)
Olympic Stains (http://www.olympic.com)
Partnership for Advancing Technology in Housing (PATH) (http://www.pathnet.org)
Pennsylvania Housing Research Center (http://www.engr.psu.edu/phrc)
Remodeling Magazine (http://www.remodelingmagazine.com)
Sweets Catalog (http://www.sweets.com)
Tamko Roofing Products (http://www.tamko.com)
Tamlyn & Sons (http://www.tamlyn.com)
Typar (http://www.typarhousewrap.com)
United States Green Building Council (http://www.usgbc.org)
Waska Cedar (http://www.waska.nb.ca)
Western Red Cedar Lumber Association (http://www.wrcla.org)
Western States Roofing Contractor Association (http://www.wsrca.com)
Wood Roofing Supplies Online (http://www.woodroof.com)
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