Ahh. Yes. All metal roofs are aluminum. Not sure why the different word choices? Maybe marketing decided "Aluminum" sounds better?Got it. My question is more specific on the Pure roof variations. I see many Pure models labeled with a Metal roof and a very few (amongst mine) that say it is a “Alumimum” roof. I will share pics when I get mine later tomorrow but assume it is a verbiage difference, nothing material. Thank you!