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/

APM Roof Window Store
Online store for skylights and roof windows.
http://www.roofwindowstore.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/

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/

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

Velux Group
VELUX - leading manufacturer of roof windows, blinds, skylights and sun tunnels
http://www.velux.com/

Velux-America Inc.
This web site provides information on all skylights, sun tunnels, and roof windows offered by VELUX America Inc. This includes a photo gallery with over 200 pictures, instructions sheets for all skylights, roof windows, blinds, shades, and other accessories, CAD files on all skylights and roof windows, product specifications, and FAQs on most questions related to skylight purchase, installation, and service. We have also provided a dealer locator for the United States, and a VELUX Certified Installer Locator for the US. Finally, the VELUX America Inc. suggested retail price list for all our skylight, roof window, blinds, shades, and other accessories is available as a PDF download or an HTML page link from each of the product pages. VELUX America Inc. manufactures Skylights and Roof Windows in Greenwood, South Carolina. There are several types of skylights including the Deck Mount skylight, the Self-Flashed and Curb Mount skylight.#gt# #lt#META name=description content=This web site provides information on all skylights, sun tunnels, and roof windows offered by VELUX America Inc. This includes a photo gallery with over 200 pictures, instructions sheets for all skylights, roof windows, blinds, shades, and other accessories, CAD files on all skylights and roof windows, product specifications, and FAQs on most questions related to skylight purchase, installation, and service. We have also provided a dealer locator for the United States, and a VELUX Certified Installer Locator for the US. Finally, the VELUX America Inc. suggested retail price list for all our skylight, roof window, blinds, shades, and other accessories is available as a PDF download or an HTML page link from each of the product pages. VELUX America Inc. manufactures Skylights and Roof Windows in Greenwood, South Carolina. There are several types of skylights including the Deck Mount skylight, the Self-Flashed and Curb Mount skylight.
http://www.veluxusa.com

Natural Light Skylight Company
Skylights and roof windows.
http://www.skylights-usa.com/

Thermo-Vu Sun Lite Industries, Inc.
Manufacturing of skylights and roof windows.
http://www.thermo-vu.com/