Loft / Attic Home-Brew CB antennas. Three Rules: Needs to be compact, easy on the wallet (cheap!) and easy to construct and understand. I have built loft / attic antennas, both verticals and dipoles for 11m (10m actually) with varing success. Other ideas are Delta Loops, horizontal loops and also remember commercial mobile antennas can ideal for lofts and attics – you will need a bit of a ground plane though. Chicken wire or just regular wire can assist. Beware that loft antennas can sometimes sound noisy because they will be directly above all the electrics in the house. However, they are still cheap and fun to make. Good luck, Callum.
https://youtu.be/V8Qq4-0_TjQ – Tribander SkyLab Tribander
https://youtu.be/xfX_8rogur8 – Delta Loops