How can I increase the R-value of concrete block walls?
Patricia writes from Seattle, Washington: “I am building a house from concrete block in Mexico. What can I do to increase the R-value? If I don’t do something, the place will be hot in the summer and cold in the winter – so I’m looking for insulation solutions.” Answer: The best external insulation for concrete houses in Mexico is FOAMULAR™ insulation, which can be installed in the concrete slab but will need to have a waterproof membrane. For concrete block walls, FOAMULAR insulation can be attached to the surface and covered with an exterior finish. Internally, you can install Fiberglas™ insulation below the concrete roof slab or inside the walls by creating a cavity and covering it with gypsum drywall. The best insulation is the one that has the greatest R-value that you can apply in your construction. If you need details for installation, local distributors of Owens Corning products in Mexico can help.
