Many Digital Broadcast Tv stations/channels will be received if antenna is above the roof.
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Attics Are Not a reception friendly environment and Never Will Be a reception friendly environment.
Reason: signal attenuation and signal reflections bouncing all around , multipath.
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Install a Winegard HD7082P in the attic aimed at about 252 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Use no preamplifier.
For 1 Tv connected use no splitter.
For 2 Tv's connected use a common simple 2 way splitter.
For 3 Tv's connected use a common simple 3 way splitter.
If the HD7082P antenna will not fit in the attic , install a Winegard HD7000R in the attic aimed at about 252 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Use no preamplifier.
For 1 Tv connected use a common simple 2 way splitter.
For 3 Tv's connected use a common simple 3 way splitter.
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If you own the roof and direct control of the roof of your Town Home then here is the Federal Antenna Law that says Yes you can install antennas above the roof of your Town Home in such a manner as to have reliable reception of the Tv stations/channels.
http://www.fcc.gov/mb/facts/otard.html.
For a above the roof antenna install I recommend the Winegard HD7000R antenna.
Here are some above the roof antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com ,
http://www.ronard.com/34424560.html if using the eave mount use the #4560.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
Here are places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.
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Tv antenna rotators Are Never Reception Friendly , Must Wait for Antenna to Rotate and there --> Will Be Domestic Issues about the direction the antenna is aimed.
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As always , trees and tree leaves will , reflect , reduce , block , Digital Tv reception and so do buildings and other obstructions including your own roof and house.
It is best to locate the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own roof and house.
The Tv/s Must Channel Scan for the Digital Broadcast Tv Channels , often named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
Some Digital Tv's automatic channel scan for Cable Tv Channels.
Go into the Tv setup menu and select , 'Air Channels' / 'Antenna Channels'.
DO NOT Channel Scan for Cable Tv Channels!!.