Insulating Exterior Walls New Construction

Reduce exterior wall leaks by taping the joints of exterior sheathing and caulking and sealing exterior walls.

Insulating exterior walls new construction.

During the construction process many builders insulate the outside of foundation walls before backfilling. Spray foam rigid foam board fiberglass cellulose or a combination of. Cavity fibrous or cellulose insulation can be installed at levels up to r 15 in a 2 inch x 4 inch wall and up to r 21 in a 2 inch x 6 inch wall. The insulation may be rigid board extruded or expanded polystyrene or polyisocyanurate closed cell spray polyurethane foam cellular glass fibrous batt or fibrous blown in insulation note however that fibrous insulation is susceptible to moisture.

Cellulose can be used as loose fill or it can be blown in to provide insulation for your newly built home. Insulation sealing and insulation in new construction larry janesky from dr. Normally when building a new home you might want to insulate the foundation before backfilling the space. In new construction you have many choices of insulation material to chose from.

Condensation and elevated moisture levels cause rot mold and mildew. When insulating interior basement walls for new construction in zone 5 cold climate is it acceptable to apply dow thermax along the inner poured basement wall from the footing to the the top of the wall. There are three main types of wall construction used in canadian houses. Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level.

A continuous layer of insulating sheathing applied to the exterior surface of a wall will minimize condensation and moisture levels. Like walls foundation insulation can be addressed if you decide to use insulating concrete forms and insulated concrete blocks. Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. It may look easy to go buy some packs of rigid insulation panels down at the.

R values can be higher for foam insulation and other advanced insulation systems. Original plan was to use 2 of xps or eps type ix under the basement slab and 1 around the slab perimeter. Solid walls built of brick stone concrete block log or wood plank do not have a cavity that can be insulated. The only option is to add insulation to the exterior or to the interior.

Cellulose is one of the oldest home insulation materials used by custom home builders. How to insulate house walls from the outside. Types of wall construction. Cellulose is used to provide insulation of a new home and it is usually placed in an enclosed wall or the open new walls.

If the exterior wall sheathing is below the dew point temperature condensation will form on the sheathing.