Attaching rigid foam… with tape?
To attach rigid foam to a concrete wall, most people seem to prefer screws, plastic anchors, or adhesive. Is it possible to simply use tape instead? It could be rolled up into loops to form a double-sided tape loop that has some allowance for irregularities in the concrete (these would go on the back of the foam), and perhaps the side edge could also be taped to the wall with a folded “L” piece of tape, before the next piece of rigid foam is put up.
No drilling, no mess, no application of pressure needed while waiting for adhesive to dry. Seems like it could work great. But no one seems to do it. Is that because it’s incredibly ingenious, or just stupid?
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