Rigid Insulation With Rainscreen Over Concrete Wall

If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.

Rigid insulation with rainscreen over concrete wall.

Rockwool semi rigid stone wool insulation is engineered with dual density technology with a high density outer layer and a lower density inner layer. The high density outer layer offers greater rigidity and water repellence while the inner layer helps to conform to architectural features. But since the below grade interior also has to be insulated to a continuous r15 it s probably easier to do the bulk of the insulation on the interior then install rigid rock wool on the exterior sufficient to bring the u factor under the code max u 0 045 r22 whole wall including the r values of the siding interior finish materials the. This refers to insulation uninterrupted by furring or by the webs of concrete masonry units.

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 best way to insulate the interior side of a basement wall is with foam insulation that is adhered to or sprayed directly on the concrete. Rockwool insulation within the exterior wall stud cavity and the external cavity offers superior long term thermal efficiency fire resistance moisture control and acoustic performance. Mineral wool boards foam sheathing and closed cell spray foam can all work as ci in a rainscreen system.

One of the options the iecc prescriptive r values iecc table 502 2 1 calls for continuous insulation on concrete masonry and other mass walls. You can use either one or two layers of plywood or osb and the subflooring can either be fastened to the concrete with long tapcon screws or it can simply float above the foam. With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification. And there is no effective way to fill the voids in an existing concrete block wall.

Rainscreen cavity wall insulation. Rigid foam can be adhered to a poured. Minimum nail length must accommodate sheathing and penetrate framing a minimum 1 inches. Any of the following insulation materials are acceptable for this purpose.

Our rainscreen and cavity wall insulation within the exterior wall stud cavity and the external cavity offers superior long term thermal efficiency fire resistance moisture control and acoustic performance. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. There are several ways to install subflooring above the rigid foam. We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower.

Examples include rigid insulation adhered to the interior of the wall with furring and drywall applied over the insulation continuous insulation in a masonry cavity wall and exterior insulation and finish systems. Current pneumatic nailers have maximum fastener lengths.