Glass Gardens
Elegant Greenhouses, Conservatories, Solariums, Pool Enclosures, Hobby Greenhouses, Commercial Greenhouses, Retail Greenhouses, Greenhouse Suuplies and Accessories
http://www.glassgardens.net/

Okandan Glass
Okandan Cam San. Ve Tic. A.S.
http://www.okandanglass.com/

Roof Genius
Roof calculator, calculates a detail list of roof materials, and a complete estimate. Two ways to determine roof pitch. Offers tips and how to's on roofing. [Windows 95/98/2000/Me/XP/NT]
http://roofgenius.com/

The Roof Group
California based commercial roof management and consulting firm specializing in inspections, maintenance, repairs, construction management.
http://www.theroofgroup.com/

Rib Roof Inc.
Design, manufacture and installation of metal roofing and self-storage building systems. Includes a construction specification handbook, product specification sheets and a rib roof technical manual.
http://www.ribroof.com/

Glasbiegerei und Veredelung Franz Döring GmbH & Co. KG
Spezialist für gebogenes Glas. Anspruchsvolle Gläser für Architektur und Innenausbau wie Floatglas, Verbundsicherheitsglas, VSG, Sicherheitsgläser, Isolierglas, Sonnenschutzglas, Wärmeschutzglas, Sondergläser.
http://www.doering-glas.de

C.R. Laurence Company of North America
C. R. Laurence is the world leader, wholesale distributor to the Glazing, Industrial, Construction, Architectural, Hardware and Automotive Industries, supplying railing, windscreen, standoffs, and other supplies to major industries and manufacturers.
http://www.crlaurence.com/

Custom Glass Corporation
Custom Glass Corporation offers Custom Fabricated Glass, Specialty Glass, Bent Glass, Bulletproof Glass, Silk Screened Glass, Security Glass, Transportation Glass, Bullet Resistant Glass, Safety Glass, and much more
http://www.customglass.com

NGF Canada Ltd
Manufacturer of specialised glass fibre, rubberized glass cord and glass flake. Owned by NGF (Europe), part of NSG (Japan). E-glass, K-glass and U-glass
http://www.ngfcanada.com

Decra Roof Systems:
Roof coverings using lightweight roof tiles for all roofs down to a ten degree pitch. UK.
http://www.decra.co.uk/