Concrete Wall With Insulation In The Middle

Warnings if installed improperly and not sealed completely moisture will gather behind insulation components to a concrete wall allowing for mold and mildew growth a potential health hazard.

Concrete wall with insulation in the middle.

The forms are interlocking modular units that are dry stacked without mortar and filled with concrete the units lock together somewhat like lego. Moving along the wall the crews placed insulation the rebar and then the exterior concrete wall panels. The insulation becomes an integral part of the wall panel when the concrete is placed. 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.

The r value of thermaeze is 9 4 for 2 inches of the material and a 10 wall. We manufacture and distribute a full line of concrete insulation systems for use in plant precast site cast tilt up and cast in place projects. A thermomass wall has concrete on the inside and the outside with the insulation in the middle. We are planning on using steel forms and pouring the inner 6 with the foam lacing the exterior of the form and then after the concrete sets moving the form along the extended ties to pour the outer 4 with the 2 foam on the middle wall and pour in 100 foot sections.

Embedded rigid board insulation in wall panels is increasingly popular for precast and tilt up walls. Most homeowners require insulation with an r value between 13 and 21 in their basements where most concrete walls can be found. Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. Adding layers of closed cell foam polyurethane sheeting or reflective barriers to a concrete wall can all increase the insulation value of concrete.

The second is to position foam sheets along the middle of the wall section and cast concrete on either side. Thermomass is an insulation product that contractors embed between two layers of concrete. The first is to cast the insulation onto one face of the concrete. In this application thermaeze was placed on the outside of the wall in order to assist the steel decking and support design.

Insulating concrete form or insulated concrete form icf is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls floors and roofs. With either method a 2 inch thick layer of expanded polystyrene eps or extruded polystyrene xps is standard in warm climates.