laminate flooring bubbling

[akpolaris]

I have a locking laminate product on my floor. There is a low clearance bench sitting above a forced air heat register, keeping most of this hot air under the bench. The laminate has bowed up under here. It is bowing as a unit, does not appears to be separating from itself. I placed a couple of 5 gal water buckets on top of it today, absent the bench. Is there a way to take the flex out of this? Possibly seal the edge with silicone to keep the air flow out?
Thanks

 

[Radix2]

Most likely the issue is lack of expansion space at the edges - can you cut some clearance around the floor in this area? Have a hard time thinking that it is just bowing on its own and not pushing against some edge constraints.