Our CELOTEX brand of fiberboard is used in multiple applications, including roofing, residential construction, and commercial applications. With our partnership with W. R. MEADOWS, BLUE RIDGE FIBERBOARD provides a combined 170 years of experience in the construction industry. For all your fiberboard needs, choose BLUE RIDGE FIBERBOARD. Company
Per-inch, R-value of softwood is 1.41. In hardwood, it is 0.71. Logs of around 6 inches would then have an R-value that is about 8. This value, when compared to other insulating materials, is actually pretty low; it is so low that it is below many industry standards. *R means resistance to heat flow. The higher the R-value, the greater the insulating power. R-value determined by ASTM C518. THERMAX™ Heavy Duty Insulation 1. pRoDucT nAME THERMAX™ Heavy Duty Insulation 2. MAnuf AcTuRER The Dow Chemical Company Dow Building Solutions 200 Larkin Midland, MI 48674 1-866-583-BLUE (2583) Fax 1-989-832-1465 It offers R-values from R-11 to R-70. Johns Manville’s Spider™ loose-fill insulation is blown in behind the BIBS® fabric for complete coverage, making it easier to install at R-15 and R-23 in 2×4 and 2×6 walls without bulging. The JM Spider solution does not settle, retaining its original R-value and energy efficiency. Knauf Shop Kingspan Insulation R-5 (Common: 1-in x 4-ft x 8-ft; Actual: 1-in x 4-ft x 8-ft) 1 Unfaced Polystyrene Foam Board Insulationundefined at Lowe's.com. For use as general purpose insulation for roofing, wall and foundation applications. XPS insulation can be used as continuous insulation on interior or EPS insulation (1.0 pcf) provides a typical R-value of 3.85 per inch (k-factor =0.26) at a mean temperature of 75°F, and a typical R-value of 4.17 per inch (k-factor = 0.24) at a mean tem-perature of 40°F. R-value means the resistance to heat flow. The higher the R-value, the greater the resistance to heat flow. Our CELOTEX brand of fiberboard is used in multiple applications, including roofing, residential construction, and commercial applications. With our partnership with W. R. MEADOWS, BLUE RIDGE FIBERBOARD provides a combined 170 years of experience in the construction industry. For all your fiberboard needs, choose BLUE RIDGE FIBERBOARD. Company Considering that plywood has an R-value of just 0.94, it would take a piece of plywood well over 2 inches thick to offer the same protection as a piece of fiberglass that is just 3/4 inch in width. Thus, walls would have to be excessively thick to offer fiberglass-level protection, which cuts into living space.
Mar 20, 2019 · This is an even more dense and more expensive foam board insulation. It provides an R-value of 6 per inch of thickness and often comes foil-faced to help reflect radiant heat. Polyiso comes in several thicknesses and is used over house sheathing underneath siding or in attic spaces where its reflective properties are very effective.
R Value. 4.1-5 (6) 9.1-10 (5) 3.1-4 (4) 7.1-8 (4) 2.1-3 (3) 10.1-15 (2) 15.1-20 (1) 5.1-6 (1) Sound Barrier. Yes (21) No (8) 48-inch x 96-inch x 1.5-inch Ship Lap R-value (m2K/W) TB4012 12 0.50 TB4020 20 0.90 TB4025 25 1.10 TB4030 30 1.35 TB4040 40 1.80 Lambda 0.022 W/mK Board size 1200 x 2400mm BBA certificates 17/5405 and 16/5352 Product code Thickness (mm) R-value (m2K/W) GA4050 50 2.25 GA4060 60 2.70 GA4070 70 3.15 GA4075 75 3.40 GA4080 80 3.60 GA4090 90 4.05 GA4100 100 4.50
High R-Value (2.9 R): Has more than two times the R-value of wood fiber and more than four times the R-value of gypsum boards. User Friendly: Allows easy and efficient scoring, cutting and snapping which permits fast, tight fabrication and all in a low dust environment.
High R-Value (2.9 R): Has more than two times the R-value of wood fiber and more than four times the R-value of gypsum boards. User Friendly: Allows easy and efficient scoring, cutting and snapping which permits fast, tight fabrication and all in a low dust environment. Key differences are R-value per inch, water resistance, compressive strength, permeability to water vapor, facings, and of course, cost. All foam insulation products are petroleum-derived. Rigid foam sheets are sold in several thicknesses; most lumberyards carry insulation ranging from 1/2 in. to 2 in. thick.