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Construction > R Value
The following information is about R Value.
R Value Defined
A measure of insulation. A measure of a materials resistance to the passage of heat. The higher the R value, the more insulating "power" it has. For example, typical new home's walls are usually insulated with 4" of batt insulation with an R value of R-13, and a ceiling insulation of R-30.
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Off-site R Value Links, User Submitted
The following links have been collected through user bookmark submission in the R Value category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Tue Jun 30
- Insulating houses In Australia and the truth about ?R Values?: R values and concertina foil batts
- How to calculate rFoil reflective insulation and No-Tear radiant barrier requirements: good discussion of R value - conductive vs radiant heat
Sat Jun 27
- Celebrities Go Green - The New Black In Hollywood: If you were to hear that the likes of Leonardo Dicaprio, George Clooney, Brad Pitt, Matt Damon, Edward Norton, Sheryl Crow and Selma Hayek were all rubbing shoulders at a star studded event you could easily be forgiven for mistaking it for some A-List,...
Tue Jun 23
- Buildex, Inc.: table of R values for various wall materials (US)
- Wall and roof R-value calculator: whole wall R-value calculator NZ
- Calculating R value of a house - Remodeling Forum - GardenWeb: note on calculating R value from measured U value (US figures)
Fri May 1
- R help archive: Re: [R] help for stata user: Stata value labels - R factors
Mon Jan 19
- R: Singular Value Decomposition of a Matrix: ue decomposition plays an important role in many statistical techniques. svd and La.svd provide two slightly different interfaces. The main functions used are the LAPACK routines DGESDD and Z
Sat Dec 27
Sun Nov 16
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