[Elecraft] OT: Antenna Question

[HSHERRIFF at sc.rr.com]

I'm sure there is a wealth of info here on the reflector. I am 
planning on putting up a loop antenna around the eves of my house. I 
am running the K2 without external amplifier. Two questions:

1. Do I need to run the antenna wire using insulators, or can I just 
use insulated staples and staple it to the eves?

2. My house has tall gables at the sides. Is it better to run the 
antenna up the V of the gable, or keep it parallel with the ground?

Thanks
Harlan KI4IDA K2:5115