This is so weird ??? I even did mine on a pretty warm day. Had it laying in the sun to soften it up a little before applying it. Didn't even smell it when I first pulled the backing off ? Since then, we have had several well over 100 degree days. Still zero smell or failure that I know of.Since there seems to be some debate here as to whether or not noico contains asphalt. I ordered some 2 weeks ago and could easily smell the asphalt (I returned it via amazon). I have Kno Knoise Kolossus, damp pro, and nvx dampener on hand and these do not have any odor, even when heated up with a heat gun (haven't tried the NVX deadener with heat yet).