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R-38 fiberglass batt insulation is approximately 6 1/4 inches thick, but loose cellulose requires over 12 inches of material to provide the same resistance value. R-values measure the thermal resistance based on the material and its thickness.


R-30 insulation has varying thicknesses depending on the type of material and in what form it comes. The R-value of insulation refers to heat transference, or how quickly heat travels through the material.


The thickness of R-19 insulation is 6.25 inches. R-value measures how effectively a specific kind of insulation blocks the transfer of heat. The two main types of insulation are batt and rolled fiberglass insulation.


An insulation R-value chart refers to a table that lists the levels of insulation recommended for different climates and for different areas in the home, according to Energy Star. Some R-value tables detail the specific R-values and other properties of different insulat...


Numerous types of insulation, including blanket, concrete block, foam board, loose fill and sprayed foam, are available as of 2015. Each type of insulation comes in a variety of R-values, which measure the insulating material's resistance to heat flow.


Insulation type, whether for attics or walls, and the material it is made from determine the R-value of the installation. The R-value measures how well the insulation resists the flow of heat, explains Today's Homeowner. When looking for the most heat resistance, choose...


Applications for thick insulation foam sheets include use as exterior insulation, either installed before backfilling a structure's foundation or over a structure's exterior sheathing, as well as an interior installation in finished basements. Typically, building codes ...