ideas for insulating garage/wall ceiling covering

Scamp Rohnda said
That's a steal on those foam boards. I used foil faced foam boards on my ceiling and a foil type tape on the seams. Don't use regular duct tape, it starts to come off after awhile. The foil keeps things brighter in there too.

I used foil faced board as well but i haven’t taped the seams yet in fear of it all falling off and having to retape it. What foil tape did you use? This would be awesome because I’ve been hesitant to tape the seams.