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.

This refers to insulation uninterrupted by furring or by the webs of concrete masonry units. Mineral wool boards foam sheathing and closed cell spray foam can all work as ci in a rainscreen system. Current pneumatic nailers have maximum fastener lengths. There are several ways to install subflooring above the rigid foam.

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

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. 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. And there is no effective way to fill the voids in an existing concrete block wall. For example mineral wool boards are typically installed over the primary wrb layer and add an additional drainage surface behind the cladding as well as a non combustible insulation layer.

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. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. Cladding attachment over thick exterior rigid insulation background current building code does provide prescriptive means to attach cladding over exterior insulation table r704 3 note v. 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.

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. Case study salesforce tower. With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification. We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower.

Rigid foam can be adhered to a poured. Rockwool semi rigid stone wool insulation is engineered with dual density technology with a high density outer layer and a lower density inner layer.