R30 Vs R38 Ceiling Insulation

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R30 vs r38 ceiling insulation.

Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. 3 5 inches r13. Sixty grains even faster. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns.

90 grains might be approaching the ma. Our house has r10 right now. Does anyone know what the r value of the the current insulation is and if it s worth keeping or replacing. Here s what i mean.

Now that you understand insulation r values you can make sure your home is properly insulated. 12 inches r38. For future reference here is the cavity depth you need for some common insulation r values. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and.

R30 c r30 r38 c r38 insulation thickness 1 75 2 5 3 5 3 5 3 5 6 25 5 5 6 5 8 8 5 10 10 12 all listed thicknesses are approximate and may vary by 0 5 inches. Worst case they come back and say they ll pay for r30. I live in georgia and i believe and that is zone 1. We got a quote to add more.

6 inches r19. The c denotes high density materials specifically designed for installation in areas where space is limited such as cathedral ceilings. Cross section of wall insulation. If you don t have all the tools you need to install insulation and improve your insulation r ratings yourself consider our tool rental services.

30 grains of black powder will drive that lead ball just fine. Insulation savings calculator use this insulation savings calculator to measure the financial impact of increasing your insulation performance. We got a quote for r30 and r38. So we extended our rafters with some two by fours giving us the space to increase our ceiling insulation to r30.

The owner already put new double pane windows in the entire house so hopefully with new insulation the house will be somewhat efficient. Went ahead and asked for r38.