Asphalt Siding R Value

Here s a closeup shot of the side of an inselbric panel.

Asphalt siding r value.

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. The higher the r value the greater the insulating power. If you are using thicker 5 8 inch shingles the installed siding will have an r value of at most about r 1 9. It s about 1 2 inch thick wood fiber panels with interlocking male and female grooves an tongues.

R value table common building materials siding materials hardboard 1 2 0 34 plywood 5 8 0 77 3 4 0 93 wood bevel lapped 0 80 aluminum steel vinyl. As we said before the r value measures the thermal resistance of a material. For example r 38 added to an r 11 results in r 49. If any readers think that the r value of cedar shingles might be higher it s worth consulting standard r value tables for a reality check.

When you re purchasing insulation buy or specify r value not inches as r values of materials vary. Asphalt siding material was made in two common versions one much like asphalt roof shingles but in larger sheets right side of the building photo near the top of this article and the other was comprised of an asphalt coating laminated to hardboard siding material or laminated to a softer wood based insulating board panel often sold as. Most such r value tables ascribe an r value of r 0 87 for wood shingle siding. R values of uninsulated concrete.

Georgia pacific s fiberboard wall sheathing offers high insulation value a sturdy panel and sound deadening and can be used in many above ground applications. Concrete homes magazine web search 5 18 2010 r value for concrete glass other materials wikipedia web search 5 18 2010 citing ristinen robert a and jack j. Fiberboard sheathing 1 52 gypsum wallboard or drywall 0 90. Energy and the environment.

For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. This asphalt siding is an ingenious product. This cost efficient product features interknit wood fibers that protect against on the job abuse and help supplement required wall bracing in traditional stud wall construction. Cea unit 2 lesson 2 2 cost efficiency and analy sis r value and densities chart page 1 r value and densities chart material r value per inch r value per unit inside air film 0 68 air space between studs 0 95 building paper 0 06 in.