The good news is that all of your major transmitters are close-by, and are on UHF, with the exception of analog channel 11, which I understand is popular in your area. You won't need much metal on the roof to be successful: the challenge will be to distribute that signal from the antenna to your various TV sets. On the roof, I would use a Winegard HD-4400 4-bay UHF antenna aimed roughly 10 degrees by your compass. if channel 11 is important to you, you will need as VHF high-band yagi like a
Winegard YA-6713 aimed at roughly 325 degrees. Combine the two antennas by using a Pico-Macom UVSJ UHF-VHF antenna joiner. Use high-quality RG-6u coaxial cable throughout the system. i suggest that you run the antenna cable coming in from the antenna into the attic, where you will need to have AC power available, and use a Channel Master CM3414 amplifier-splitter, which is designed to power 4 televisions. Run the coaxial cable from the amp-splitter to each TV set, and connect your digital converter boxes where they are required. If you are using digital converter boxes, be sure that the boxes have analog bypass connectors so you can use the TV tuner in the TV sets to receive analog channel 11. You'll see all of the local stations perfectly if you follow this plan.
http://www.winegard.com/kbase/upload/HD-4400.pdfhttp://www.winegard.com/kbase/upload/ya-6713.pdfhttp://www.channelmaster.com/product.php?catID=40http://www.solidsignal.com/pview.asp?mc ... enna-(UVSJ)&c=Signal%20Combiners&sku=
http://manuals.solidsignal.com/AntInstallGuide.pdf