Insulating Exterior Walls New Construction

Normally when building a new home you might want to insulate the foundation before backfilling the space.

Insulating exterior walls new 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. 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. There are three main types of wall construction used in canadian houses.

Like walls foundation insulation can be addressed if you decide to use insulating concrete forms and insulated concrete blocks. Original plan was to use 2 of xps or eps type ix under the basement slab and 1 around the slab perimeter. A nicely insulated foundation will minimize insects moisture and radon infiltration problems. If the exterior wall sheathing is below the dew point temperature condensation will form on the sheathing.

Cellulose is one of the oldest home insulation materials used by custom home builders. R values can be higher for foam insulation and other advanced insulation systems. Energy saver walks us through the process of air sealing and insulating two newly constructed condominium units. 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.

Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. How to insulate house walls from the outside. In new construction consider construction techniques that provide both foundation structure and insulation such as insulating concrete forms and insulating concrete blocks. Types of wall construction.

In new construction you have many choices of insulation material to chose from. A continuous layer of insulating sheathing applied to the exterior surface of a wall will minimize condensation and moisture levels. Condensation and elevated moisture levels cause rot mold and mildew. Reduce exterior wall leaks by taping the joints of exterior sheathing and caulking and sealing exterior walls.

It may look easy to go buy some packs of rigid insulation panels down at the. Insulation sealing and insulation in new construction larry janesky from dr. The only option is to add insulation to the exterior or to the interior. During the construction process many builders insulate the outside of foundation walls before backfilling.

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.