3 8 Vs 1 2 Inch Siding Insulation

It provides r values that range from 3 6 to 4 2 per inch.

3 8 vs 1 2 inch siding insulation.

The upper part of the cabin has standard batting and no form of exterior insulation under the siding. The structural integrity of shelterwrap allows the product to lay absolutely flat against the old siding eliminating the need for furring strips. Insulated vinyl siding is installed with nails as with standard vinyl. If a reflective surface is not desired poly laminate can be ordered on both sides.

0 56 in x 4 ft x 8 ft. 0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. A vented drainable air space keeps wood siding dry and stable. Some products have reinforced facing to make them sturdier.

Kingspan insulation r 3 common. The insulation itself can be up to 1 25 inch thick at its thickest point but due to the stepped profile much of the insulation is thinner. Fanfold foam residing board is a thin perforated extruded polystyrene foam board faced on one side with a plastic film facer and combines proven xps foam technology with a unique design to enhance the application of new or replacement siding. Measuring 4 x 24 per bundle shelterwrap is cut through the insulation every 2 and fan folded as a hinge at each fold this allows easy one person installation.

Standard density is 1. It provides about r 5 per inch. Also called styrofoam insulation this is the least expensive material. Norandex 3 8 is a nominal 3 8 thick extruded polystyrene board and is produced in continuous 4 x 48 fanfolded sections with 24 crimped seam spacing.

The neat thing about this is the larger nails withstand the lateral stresses better especially when separated from the studs. Norandex 3 8 provides sealing effectiveness and a smooth level surface for new siding. The lower level has 2 in of xps rigid foam insulation on the interior walls. One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam insulation applied.

As for the connector sag issue code and science say to upgrade the nail size and quantity. Choose this option for areas that need a good amount of strength and water resistance. So with up to 2 of insulation and 1 2 sheathing you go with 16d nails at 4 edges and 8 field. Other densities up to 3 pcf and thicknesses up to 4 are also available.

The bottom edge of the insulation is shaped to receive the top edge of the siding course below so the pieces overlap.