Comparative R-Values Flashcards by Dickinson Donner

Q

most insulate types:

A

rigid boards

and

sprayed foam

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Q

loose fill insulation range:

A

2.1-3.8

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Q

batt range:

A

3.1-4.3

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Q

inorganic board range:

A

5.6-7.7

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Q

organic board range:

A

1.4-2.0 (straw)

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Q

sprayed foam:

most insulative type

A

polyurethane

5.0-7.0

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Q

sprayed foam:

polyicyene

A

3.6-4.0

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Q

structural insulated panels

A

4.0-6.0

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Q

straw bales

A

2.4-3.0

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Q

autoclaved aerated concrete

A

1.1

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Q

LTTR

A

long term thermal resistance

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