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3 Cards in this Set
- Front
- Back
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What is R-Value ? |
R-value measures insulations resistance to heat flow or thermal resistance. The higher the value the greater the insulating power. |
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What is the typical r-value of walls or roofs in an rv ? |
R4- R8 |
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What is the r-value of loose fiberglass? |
R3-R4 |
