I have an existing steel building (Z purlin and steel panel sides and roof) in Arizona and it is FRICKIN HOT. I bought InsulationStop "Double Bubble Foil Radiant Barrier" http://www.insulationstop.com/double-bubble-foil-insulation.html rolls and I need advice on how to install it. First attempt was to install the rolls on the walls and I used Radiant Guard double sided tape https://www.radiantguard.com/collections/insulation-tape/products/double-sided-tape The next morning I came in and the radiant barrier rolls had all fallen down...the tape stuck to the walls just fine (I cleaned the steel panel surface with 70 percent isopropyl alcohol) however the tape completely peeled off of the foil inside surface of the radiant barrier. Does anyone have a recommendation on a double stick tape that will stick to both the foil and the steel panel surface? This has to work for both the walls as well as the ceiling. I see other techniques to retrofit a steel building includes attaching wood furring strips to the purlins with self drilling screws and then stapling up the barrier to the wood strips however that is a significant cost plus it is a huge PITA... IF...I have to go with the wood furring strips then I can drill them to the ceiling purlins OK however the walls I do not have purlins and in the case of the walls I would need to glue the wood strips to the side wall panel because I do not want to have to drill through the side wall. Ann suggestions/advice/well wishing/moments of silence for me would be most appreciated!!!