What is the R value of cardboard?


In general cardboard has an R Value, insulating value, of three or four, this is actually lower than the R Value of still air, five. R Value is usually given per inch and there better options than cardboard for insulation.
Q&A Related to "What is the R value of cardboard?"
All insulating materials, and all building materials for that matter, have a corresponding R-value that is based on the material, its thickness and its density. Four-inch-thick cellulose
Cardboard has calories! But lacks any other nutritional value, and may
R squared. also called the. coefficient of determination. is the portion ( of the total variation of the dependent variable that is explained by the variation in the independent variable
More information is needed in order to properly estimate a value. Engine size, transmission, optional equipment installed, etc. would help nail down a closer approximation, but given
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