Why did they bond the floor with divellete? Divellete isn't a glue its a core bedding compound, you trowl it down before installing end grain balsa or scarffed foam. The reason I asked about the screws is we install an infused foam pannel floor in a 58 ft boat and never use screws as it breaches the core on the underside of the laminate that is impossible to repair. When Im installing a foam composite laminate as a floor or sole I use a methacrilate like plexus or Weldon, put the plexus down then install the floor with weights on top untill it goes off then glass over. Even cool to use sika to bond flooor down, but Divellete?