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

PowerLight Corporation
SunPower manufactures, designs, and delivers elegant, high-efficiency solar power solutions for residential, commercial, and power plant applications
http://www.powerlight.com/

Metal Roof Market, Inc
Direct sales of high quality metal roof products including metal shingles, standing seam panels, metal coil, flat sheet, tools and underlayments to ho
http://www.metalroofdirect.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/

Dallas Metal Products, Inc.
Providing all you're metal products and metal roofing products since 1989
http://www.dallasmetalproducts.com

Orangeries
We design and create beautiful Orangeries in a classical style that will enhance your home. Call 02032 393 393 for free advice on Orangeries.
http://www.orangeries.org

Flat Roof Solutions EPDM
Rubber roofing and EPDM rubber for all your DIY flat roofing projects. Turn to Flatroofsolutions.com for the best price for materials and application accessories
http://www.flatroofsolutions.com/

Elastomeric Roofing Systems
Ersystems is a manufacturer and distributor of high performance elastomeric coatings and membranes designed for the roof restoration and re-roof markets.
http://www.ersystems.com/

Thaler Metal Industries Ltd.
Designs, manufacturers and markets roof penetration protection products. Provider of flashings, roof drains, equipment support systems and anchors to the roofing industry in North America.
http://www.partsdome.com/thalermetal/

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/