Hunter Insulation R Value Chart

R inch r thick ness insulation materials fiberglass batt 3 14 fiberglass blown attic 2 20 1 fiberglass blown wall 3 20 rock wool batt 3 14 rock wool blown attic 3 10 rock wool blown wall 3 03 cellulose blown attic 3 13 cellulose blown wall 3 70 vermiculite 2 13 air entrained concrete 3 90 urea terpolymer foam 4 48. Notes on the r value k values of different forms of asbestos. As a benchmark one inch of solid wood has an r value of 1.

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Packaging And Weight Charts Hunter Panels

Hunter Panels H Shield

Polyiso Insulation Hunter Panels

R value measures how well certain building insulation materials can resist heat.

Hunter insulation r value chart. Hunter panels cool vent vented nailbase polyisocyanurate insulation panel for steep slope roof applications features and benefits. Notes to the table above. H shield typical physical property data chart polyiso foam core only property test method value compressive strength astm d 1621.

In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. Most insulation manufacturers will first list their insulation s r value for a one inch sample then they ll give you a chart demonstrating the other r values you can achieve if you install a thicker version of their product. Flat polyisocyanurate insulation h shield thermal values thickness lttr r value flute inches mm spanability 1 00 25 5 7 2 5 8 1 50 38 8 6 4 3 8 1 80 46 10 3 4 3 8.

Rosato asbestos insulation is the most authoritative source on asbestos properties and gives data for the thermal conductivity of asbestos in different forms and with varying temperatures for magnesia asbestos insulation at mean temperatures ranging from 100 f to 400 f the k value thermal. Hunter panels the innovator of polyiso insulation products an interesting thing happened 22 years ago when hunter set out to manufacture the absolute most effective efficient and innovative polyiso insulation panels available anywhere we also created the finest customer service organization and builder support team in the industry. The higher the r value the greater the insulation performance.

The r values shown above are the minimum r values required to meet code requirements. When determining how much insulation you need don t guesstimate calculate. The common denominator among varieties of insulation is the r value.

R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. How does this affect r values on a tapered insulation system. R values other than those listed can be achieved by install ing a multi layer system consisting of an additional layer of flat polyiso under cool vent.

R 20ci r 25ci r 25ci r 30ci r 30ci r 30ci r 35ci r 35ci question. Know exactly how much you need with our project calculators. Since a tapered insulation system will increase thickness away from the low points the overall system r value will.

Let s use the r value of iko s polyiso insulation enerfoil tm as an example.