3 8 Vs 1 2 Inch Siding Insulation

We will be residing the cabin this summer and are wondering if adding 1 inch of xps rigid insulation on the exterior walls and walk out will cause any moisture issues.

3 8 vs 1 2 inch siding insulation.

2 in x 4 ft x 8 ft. R value ft 2 hr f btu astm c518 modified 1 0. Smoke development astm e84 ul 723. 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.

Insulated vinyl siding is installed with nails as with standard vinyl. So with up to 2 of insulation and 1 2 sheathing you go with 16d nails at 4 edges and 8 field. Compressive strength psi min astm d1621 modified 8. If a reflective surface is not desired poly laminate can be ordered on both sides.

Norandex 3 8 provides sealing effectiveness and a smooth level surface for new siding. Foamular 250 3 in. Also called styrofoam insulation this is the least expensive material. Water absorption maximum by vol max astm c272.

The lower level has 2 in of xps rigid foam insulation on the interior walls. Other densities up to 3 pcf and thicknesses up to 4 are also available. Poly shield is made of cellofoam expanded polystyrene eps rigid insulation faced with a tough poly laminate or a reflective foil facer. R 3 graphite radiant barrier wall insulation kit 9 sheets kit multipurpose high density insulation kit r10 2 3 8 in.

Sticky mesh heavy duty. Flame spread astm e84 ul723. 1 4 fanfold. It provides r values that range from 3 6 to 4 2 per inch.

Water vapor permeance perms min astm e96 procedure a 1 0. 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. 2 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 304090 model 100000050518. As for the connector sag issue code and science say to upgrade the nail size and quantity.

R 15 scored squared edge rigid foam board insulation sheathing. It provides about r 5 per inch. 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.

Some products have reinforced facing to make them sturdier. The upper part of the cabin has standard batting and no form of exterior insulation under the siding. Choose this option for areas that need a good amount of strength and water resistance. It also features a straight cut hinge allowing the cladding to lie flat.

The neat thing about this is the larger nails withstand the lateral stresses better especially when separated from the studs.