Insulation The Thermal-Ply Radiant Barrier provides great protection from both extreme cold and extreme heat. Blocks out as much as 93% of the summer heat gain. A lightweight mahogany plywood liner protects the ceiling and sidewall insulation, ensuring long term durability. The photo below shows the components of a typical insulated doghouse - 2x2 framing, a mahogany plywood liner, ¼ inch 3 ply-foil insulation and clear "A" grade bevel siding. |