Modern art Hatch Openings

 I strengthened the edges of all of the hatch openings by routing out an inch and a half of deck foam then re-filling the void with a thixotropic mixture of aerosil, glass micro spheres and epoxy.

I then used strips of tough synthetic roof material as a mold to create nice smooth edges that will require little finish work.  I used flexible wood strips, springing them together to hold the edges in place.

 this method works really well.  The sharpy marks will be the drill holes and location of the hatch frames.