I found this stuff on Home Depot (.com) Reach Barrier Silvertanium, its radiant barrier, and it says I can wrap my house in it for insulation. So my question is: CAN I USE THIS IN PLACE OF TYVEK WRAP AND PINK FIBERGLASS INSULATION?? I wasn't sure if this will let the moisture out the same as Tyvek. Also, I've never built anything, so I'm trying to do it as easy as possible :0 and I live in Lancaster, CA, aka the Mojave Desert. Thanks in advance! Also, if someone could explain the point of it all in laymen's terms