Insulate Concrete Wall Exterior

Insulating concrete masonry walls introduction.

Insulate concrete wall exterior.

Nethaniel ealy a builder in idaho who s about to pour a concrete basement foundation is trying to come up with insulation and waterproofing details that will be effective and within the budget. Consult your local building authority before having eifs applied to the exterior of your house or building. Exterior wall basement insulation. As the federal energy star program and international energy conservation code continue to push the envelope for effectively insulating exterior walls against thermal loss to boost a home s energy efficiency builders of block walls are being forced to adjust their practices to comply with the more stringent standards.

Your only option is to cover the inside of the exterior walls with a continuous layer of insulation as though you were insulating a basement wall. The thermal performance of a masonry wall depends on its steady state thermal. The current plan is to place 2 inches of extruded polystyrene xps on the outside of the foundation walls. Before insulating coat the exterior of the walls with fluid applied water control and air control layers.

Then attach 2x4s on the flat directly to the masonry insulate between and on top of them staggering the joints in the insulation and install additional furring on top of the insulation to attach your cladding. The contractor applies a layer of adhesive over the surface of the concrete blocks and then installs a. Basement walls made out of concrete stone concrete bloc and other masonry foundation materials have very minimal insulating properties and cause approximately 20 of heat loss in a home. 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.

What is striking is that the exterior of the insulated wall is actually below ambient at 15 8f and that there is heat leaking out the bottom of the wall which is insulated below grade to over 8. While the un insulated concrete is at 25 5f about 5 degrees warmer than ambient the insulated wall is almost 10f colder. That is why insulating your basements walls is necessary especially when you live in areas that have very cold climate. Our exterior wall basement insulation can be a solution for basement wall assemblies combining continuous rigid insulation and friction fit batt insulation between the studs.

The variety of concrete masonry wall constructions provides for a number of insulating strategies.