Welcome to Roof Online!
Find reliable information on just about any roofing topic.
Put together by professional roof consultants, Roof Online is a website dedicated to providing (or locating) good, accurate, and thorough information about every kind of roof and all aspects of roofing.
The content of this site was produced by, selected, or vetted by qualified and credentialed roofing experts with roofing industry experience going back decades.
Our site is aimed mainly at property managers, homeowners, and commercial building owners, but we do put a healthy amount of effort into making it very useful to roofing contractors and our fellow roof consultants as well.
Roof Online is growing constantly, so please bear with us as we add information. And while you’re here, why not check out the Top Ten Roof Songs of all time? Or even the Ten Best Rooftop Movie Scenes, if you’ve got the time.
All Roofing Topics
What are you looking for? Click on a category below to see our topic pages about the subject you’re interested in, or just search the website.
Pages that cover asphalt shingles, clay and concrete tile, metal roofing, EPDM, TPO, PVC, and much more!
Pages that cover insulation, coatings, drainage, pitch pans, and all the other parts of a roof system besides the primary roof covering.
Pages that cover sheathing, chimneys, HVAC units, and other parts of the building that have an effect on the roof.
Find information on building codes, energy codes, and roofing industry standards.
Pages that address common roof problems. Wind issues, snow issues, asbestos, and other kinds of defects and damage.
Planning, roof repairs and replacement, roof maintenance, roof cleaning…and all the paperwork that comes with taking care of a roof.
A huge directory of companies that manufacture roofing products and related materials, as well as things like skylights and solar power products.
Everything to do with roof pitch. Slope factors, hip and valley info, conversion charts.
Comprehensive tables showing the weights of various materials and other important metrics like thickness, thermal expansion, and R-value.
A directory of all the roofing magazines you can find online, our list of recommended roofing reference books, historic roofing resources, roofing education providers.
Pages on things like cool roofs, green roofs, flat roofs, etc. that aren’t specific to one kind of roofing material.