R30 Vs R38 Ceiling Insulation

R 30c and r 38c are available in both kraft faced and unfaced.

R30 vs r38 ceiling insulation.

Does anyone know what the r value of the the current insulation is and if it s worth keeping or replacing. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. 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. Cross section of wall insulation.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Enter your data into the fields where indicated. Here s what i mean. We got a quote for r30 and r38.

And owens corning ecotouch high density insulation products are designed specifically for these rafters. We got a quote to add more. The rafters in cathedral ceilings are usually made the rafters in cathedral ceilings are usually made of 2x10 ft. Wall insulation whenever exterior siding is removed on an.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Insulation savings calculator use this insulation savings calculator to measure the financial impact of increasing your insulation performance. Sixty grains even faster. I live in georgia and i believe and that is zone 1.

30 grains of black powder will drive that lead ball just fine. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns. 90 grains might be approaching the ma.