Quote Originally Posted by swansonbb View Post
Not exactly. Flexwatt, although called "heat tape", isn't really tape. It's more like heating elements inside of a plastic sheet. Use aluminum foil tape to tape down the edges - you can find it at Lowe's, Home Depot, etc... Do not use duct tape, or anything similar - I've read the heat can melt the adhesive and make a pretty nasty mess.
x2
The only thing i have to add is i just bought my foil tape from RBI. But you can probably get it at lowes/HD like he said^