Convection is another source of heat transfer when air moves between two spaces. Minimizing or controlling losses via convection is desirable but requires more consideration. Adequate outside air is necessary for breathing, and sufficient air transfer is required to ventilate other gases and odors from interior spaces.
Expanding foam insulation is a method of applying a liquid resin that reacts with air to expand into its surroundings. The resin can be injected into small or large voids to fill the space with a solid foam. The resulting foam can seal gaps and cracks to prevent air from entering into your home. It […]
Fire resistant foam insulation contains fire retardant, and some are specifically formulated for fire resistant use. If you need a fire resistant foam for insulation, be sure to choose one specifically marketed as such. These products possess a higher degree of fire resistance than standard foam insulation. Fire Resistant Applications include : – fire resistant […]
even if the spraying must be done by professionals, and therefore is more costly than other options, the high R-value of spray insulation can make it cost- effective over time, through lower heating bills. In very cold or hot climates this advantage may be well worth the cost.
Spray insulation also carries the advantage of filling uneven areas well. The sprayed foam expands to fill cracks and fit into irregular spaces that would be difficult to work around with other kinds of insulation.
Although the emphasis on saving home heating and cooling energy has been on attic insulation, exterior walls have a similar surface area that transmits energy. Homes built prior to 1960 had no insulation or at best R-5. Between 1960 and 1980′s average R values increased to about R-11. Insulating wall cavities that were empty or […]