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/

Garcima
Spanish manufacturer of metal kitchenware such as paella pans, gas rings, pans, and barbecues.
http://www.garcima.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/

China Foundation International Ltd
Manufacturer of cookware including sauce pans, frying pans, roasters, and steamers. Located in China.
http://www.china-foundation.com/

Roof Products, Inc.
Manufacture prefabricated roof curbs and other roof accessories. Products include expansion joints, equipment supports, adapters, and ice deflectors.
http://www.rpicurbs.com/

Roof Coatings Manufacturers Association
Roof Coatings Manufacturers Association (RCMA) represents manufacturers of cold-applied roof coatings and cements. RCMA’s site offers product information and the latest roof coating news.
http://www.roofcoatings.org/

A.H. Lehmann Blechwarenfabrik
lehmannback.de - Backformen und Kastenverbände für die Backindustrie
http://www.lehmannback.com/

Fibreglass Roof Decking
Roof Decking From Dura Composites Ltd
http://www.roofdecking.co.uk

American Hydrotech, Inc.
Hydrotech’s Green Roof, the Garden Roof Assembly is the latest innovation in roofing/waterproofing using MM6125 and 40+ years of successful installations around the world.
http://www.hydrotechusa.com/

Roof Menders
Tin Roofs: protecting our rich heritage against leaks and rust
http://www.roofmenders.com/