Applying bubble wrap. Simply mist the hatch with water and apply the wrap, bubble-side out. If the bubble wrap is cut too large it will buckle and fall off, so provide ¼-inch clearance all around.

Dirt-cheap Winter Insulation for Liveaboards

Insulation is a greater energy-saving expedient; if our heater or air conditioner is undersized, fixing drafts, shading or insulating windows, and insulating non-cored laminate are all ways to reduce the thermal load. For boaters, however, that is only half of the equation.

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