The round antenna on the floor will not work on the floor or in the attic for VHF 10.
VHF 10 is also in a different direction from your main group of stations at around 300 degrees magnetic. If your home has a standard shingle roof, the attic will work if you do the following:
Use an Antennas Direct DB2e Uhf antenna aimed to 300 degrees and an Antennacraft Y5-7-13 High VHF antenna aimed to 19 degrees. You can mount these on one mast about 12" apart. Use a U/V joiner to combind the antennas into one coax. The joiner and the antennas are available at
www.solidsignals.com