The rf losses are fairly low in wood and most roofing at hf vhf most of problem comes from interaction with electrical wiring and ductwork.
Attic dipole antenna.
Dipole and long wire antennas can also be used with mobile outdoor style auto tuners feeding them in an attic space.
Another local uses an hf loop antenna tacked up around the circumference of the ceiling of a second floor bedroom.
This was installed at a previous qth i will be the first or millionth remember i m from fl to affirm that the antenna is the determining factor for success when it comes to one s station set up.
The better your antenna the more success you will have making contacts.
Made from sturdy materials including solid aluminum and a waterproof dipole box this antenna is designed to resist the elements even in a non weatherproofed attic so it can continue to provide your household with free access to tv channels for a long time.
Attic antennas can work better than you might think some of mine work as well as their outside counterparts no i m not comparing to a 150ft tower big yagis.
Antennas in the attic are a fire hazard this is one of my most favorite excuses because the factual case of a fire hazard is nearly impossible to make.
For the most common type of antenna the dipole the high voltage point is the ends of the antenna.