Civil Engineering and Architecture R-Value and Densities Chart – Page 3 The following table was taken from the Home Energy Website: R-Values for Wall Systems No. System Description Clear Wall R-Value (Rcw) Whole Wall R-Value (Rww) (Rww/Rcw) x 1. 12" two-core insulating units concrete
Apr 26, 2012· Concrete that uses chunks or beads of expanded polystyrene (EPS) foam as aggregate has lots of interesting applications. It's lighter, for one, so if you're casting something intended to be portable (like Halloween yard tombstones) "EPScrete" can save you some lifting and groaning. It would also be expected to have better thermal ...
What is special about the Sandwich Panel R-value Calculator is that it for the first time ever you can calculate a Mass-Enhanced R-value for a sandwich panel wall. The methodology for this calculation is described in The Mass-Enhanced R-value of Precast Concrete …
U and R-values. U-value (or U-factor) is a measure of the rate of heat loss or gain through a construction of materials. The lower the U-factor, the greater the material's resistance to heat flow and the better is the insulating value. U-value is the inverse of R-value.
THERE'S A LOT MORE TO "ENERGY EFFICIENCY" THAN "R-VALUE". High Thermal Mass Concrete Core. Thermal mass is the ability of a material to absorb and store heat energy. A lot of heat energy is required to change the temperature of high density materials like concrete.
Jul 26, 2012· Opposites do attract and make great companions. The light weight characteristics of expanded polystyrene (EPS) joined together with the industrial strength of concrete form a perfect union that can be used for both residential and commercial uses!
Feb 15, 2014· The R value California came up with is fine with me. Before this, we had nothing to work with in our energy calcs. Interesting if you read that document linked above they also assign R values to straw bale and log cabin construction. They have similar issues like type of straw, weight of the bales, species of logs etc. that effect R value.
Vermiculite concrete Ve r miculite is a soft, laminated, mica-like mineral that has few uses in its natural state but when heated and flaked becomes a lightwe i g h t a g g r egate of great value for fill and insulating concre t e . The expanded p r oduct weighs from 6 to 10 pounds per cubic foot. Ve r miculite insulating concrete is
Get an accurate R-Value calculation for expanded polystyrene (EPS) or STYROFOAM from Universal Foam Products.
The R-value of an uninsulated, 8-inch-thick basement wall built using normal-weight concrete is 1.35, based on data from the 1993 American Society of Heating, Refrigeration, and Air-Conditioning Engineers' Handbook. By doubling the thickness of the wall to 16 inches, the R-value only increases by 0.50.
Formulas for Lightweight Concrete. Fernando Martinez Lewels has a M.S.C.E degree from the University of Texas at El Paso. He is now working with the Agartif company in Chihuahua, Mexico (about 170 miles from El Paso Texas).
Insulation is essential in all construction for energy conservation. The original cost of installing perlite loose fill insulation can be recovered quickly due to substantial reductions in heating and air condition energy consumption.
Lightweight concrete, also known as EPScrete (expanded polystyrene concrete), is a material widely used in the building of environmentally "green" homes. The substance is often made using small Styrofoam balls as a lightweight aggregate instead of the crushed stone that is used in regular concrete.
R-Values of Common Building Materials! The R-value of a material determines how quickly heat is conducted across it. The values below are some of the more common R-factors for surfaces found on buildings in the U.S. Exterior Walls with Siding Exterior Walls with Siding Concrete block (8") R-Value Concrete block (8") 2
The R-Value • The R-value uses US units of (h*ft²*°F)/BTU • The RSI value uses metric units of (K*m²)/W • The R-values are roughly 5.67 times higher than RSI values. • U-value: overall thermal conductance. U-value is equal to the inverse of the sum of the R-value in a
Nov 02, 2013· Air Krete® cementitious foam insulation has been around for decades, but despite its many advantages it has not become a name. That may change now that Dr. Energy Saver, a nation-wide network of energy conservation contractors, has acquired exclusive rights to the product.. Air Krete, for those unfamiliar with it, has the look and feel of shaving cream as it's injected into walls ...
Specificially, Polystyrene concrete (Epscrete), has been making appearances across the internet being displayed for its unique abilities. Mixing of the polystyrene composite is almost exactly the ...
We are RASTRA, and we produce a high quality building system from recycled foam plastics.We pioneered the insulated concrete form (ICF) industry and invented and developed the Compound or Composite ICF (ICCF). RASTRA is the solution for this century to build environmentally conscious, energy-efficient buildings that provide a safe and healthy living environment.
concrete sections and therefore has been tempered with U-Value average to account for the restricted conduction zones affected by solid concrete. The steady state thermal analysis shows the total isothermal R-value for the wall, with the ability to factor in thermal breaks such as metal ties or solid concrete sections.
EPS insulation blocks that are 5" thick have an R-value of R-20.5 or greater. Simply by placing the EPS blocks inside the concrete block voids while the foundation wall is being built, that R-1.11 insulation value for the block wall is turned into an average of R-13.53. It is simple. It is inexpensive.
Nov 29, 2010· Adding concrete to the mix creates a nice thermal bridge, and an EPScrete wall would definitely have to be thicker to have the same R value as plain EPS. I generally like EPS sheets or …
Styrofoam Concrete: There are many concrete projects, such as benches for sitting and walkway fill, that can be made using light-weight Styrofoam Concrete. By substituting Styrofoam trash for store-bought gravel in the concrete mix, one saves on not only weight, but...
In general, low-density concrete has a higher R-value than high-density concrete. The type of concrete used for floor slabs typically has an R-value of 0.1 to 0.2 per inch of thickness, meaning a ...
Papercrete made with a 4-to-1 ratio of cement to paper, by weight, won't burn at all, but that amount of cement is too costly and may negatively affect R-value. Papercrete made with a 1-to-1 ratio of cement to paper, by weight, will smolder like charcoal, but does not burn with an open flame.
Apr 22, 2017· Instead of the XPS layer and heavy concrete, we use expanded polystyrene concrete: sand preparation at least 200 mm, polyethene film 100 μm, EPScrete D400, 100 mm layer. At the planned soft finish coating on top of expanded polystyrene concrete – bulk floors or a cement-sand screed of a small thickness.
Oct 03, 2011· I've got the EPS-crete wall started. The forms come off today and they get moved up ready for the next layer. So far, I'm liking both the process and the result. It's dead easy to mix, light to shovel, doesn't require herculean forms and is easy to press into place.
Dec 19, 2018· A wall's thermal resistance, or its R-value, is its ability to slow the transfer of heat from one side to the other. Concrete block makes a cost-effective and structurally sound wall, but it has ...
R values for common materials and wall constructions. Note: if you are starting with an un-Insulated space it is very important to read the section below titled "Estimating R Values for Un-Insulated Spaces" Note: These are all US R values. To convert to SI R values multiply by 0.176. For example US R10 = SI R …
R-Values of uninsulated concrete: 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. Kraushaar. Energy and the Environment. 2nd ed. Hoboken, NJ: John Wiley & Sons, Inc., 2006.
Concrete Block 4 inch 0.80 Concrete Block 8 inch 1.11 Concrete Block 12 inch 1.28 Brick 4 inch common 0.80 Brick 4 inch face 0.44 Poured Concrete 0.08 ... R-Value of Building Materials Material R/ Inch R/ Thick-ness Fiberglass ( ⁄₄ inch) 3.00 (1 inch) 4.00 ⁄₂ inch) 6.00 Extruded Polystyrene ( ⁄₄ inch) 3.75