Put some more time on the trailer this weekend by waterproofing and insulating the bottom of our floor! To do this we first coated the bottom of the floor in asphalt emulsion tar. We then cut out some 1/2 inch insulation panels to fit in the slots between our 2X2 support beams and screwed them into the floorboards. After pasting in the foam panels, we put in one last layer of tar and sealed the whole thing off. Should be fairly watertight now!