It can. Typical is to set it out in direct sunlight for a few hours on a warm day to help when installing. That's how I've done my previous efforts. Some molded carpet set's fit better vs others as well. One might not need much if anything to keep it where it needs to be while another requires glue here & there.I saw a guy using a heat gun on carpet getting it to conform to the floor. Judicious use obviously
I have no clue if it works myself personally
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