Please Also Familiarize Yourself with Foam Insulation By Taking A Look At Some Spray Foam Photos.
ABOUT SPRAY FOAM INSULATION
INSULATION INFORMATION: Spray Foam Insulation refers to materials used to reduce the rate of heat transfer. Thermal insulation keeps enclosed areas such like buildings warm, or cold. Insulators are used to minimize that transfer of heat energy. In home insulation, the R-value is an indication of how well a material insulates the structure's exterior walls.
TYPES of SPRAY FOAM: There are two basic types of spray foam products, open and closed cell. Open-cell foam is porous, allowing water vapor and liquid water to penetrate the insulation. Closed-cell foam is non-porous, and not moisture-penetrable.
CLOSED VS OPEN CELL: By most building code officials standards for insulation, open cell foam rarely forms a vapor barrier for interior wall insulation. Open-cell foam requires trimming after installation because the foam expands alot, and disposal of the waste material. Closed-cell foam is very strong, and structurally reinforces the insulated surface. By contrast, open-cell foam is soft when cured, with little structural strength. (Check with local building code officials for insulation codes in New Brunswick Canada areas.)
Closed-cell foams are superior insulators. While open-cell foams typically have R-values of 3 to 4 per inch (RSI-0.53 to RSI-0.70 per inch), closed-cell foams can attain R-values of 5 to 8 per inch (RSI-0.88 to RSI-1.41 per inch). This is important if space is limited, because it allows a thinner layer of insulation to be used. For example, a 1-inch layer of closed-cell foam provides about the same insulation factor as 2 inches of open-cell foam. Closed-cell foam rarely requires any trimming because expansion of this foam is minimal, with little or no waste.
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