Exterior Wall Insulation Thickness

Best for interior and exterior walls in cold or humid climates especially for homes with masonry or wood walls.

Exterior wall insulation thickness.

When you are insulating two by four 2x4 and two by six 2x6 framed exterior walls and want to use fiberglass insulation what thickness is best the question becomes all more critical because of the permanent nature of wall assemblies and wall insulation. Standard fiberglass insulation batts or blankets provide an r value of 2 2 to 3 8 per inch of thickness. Once the insulation is in the wall and sealed up with drywall it is not easy to change out. An external wall insulation system or ewis is a thermally insulated protective decorative exterior cladding procedure involving the use of expanded polystyrene mineral wool polyurethane foam or phenolic foam topped off with a reinforced cement based mineral or synthetic finish and plaster.

Most manufacturers produce an r 13 batt that fits into a 2 by 4 wall cavity which is. The total up charge for my hypothetical house would be 1 020. Most used when framing the exterior walls of a house. Window and door jamb depth needs to increased with 2x6 walls.

The extra thickness fiberglass insulation added 145 to the cost. The thickness of thermal insulation is dependent on whatever type is required in order to create. A deeper wall space on exterior walls provides more room for insulation inside the walls and the opportunity to greatly decrease heat loss through your walls you can increase the thickness of.