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Family outside with dog playing Frisby.



R-value is the rating system to tell you how well insulation can keep heat from leaving or entering a space. The ‘R’ stands for resistance. The higher the R-value the greater the insulating effectiveness.

Relative Humidity

The amount of water vapor in the air measured as a percentage. The percentage expresses the amount needed for saturation at the same temperature.

Rim Joists

Rim joists are attached perpendicular to the joists and provide lateral support for the floor above.