Rigid Foam Insulation Exterior Retrofit

Remove existing wall cladding and trim.

Rigid foam insulation exterior retrofit.

This adds r value but most importantly it seals the air leaks that infiltrate roofs and walls. Insulate the walls of an existing home by removing the existing cladding and installing rigid foam insulating sheathing to upgrade the major building enclosure functions of the wall water control air control vapor control and thermal control as follows. With the first layer of a two layer exterior foam retrofit installed calvin and damien turn to the money layer. Bsc s high r value retrofit techniques for roofs unvented attics describes the use of multiple layers of rigid insulation above the roof deck as a retrofit technique to insulate an attic and bring it into the thermal enclosure.

One of the most effective ways to boost an older home s energy performance is to wrap it in thick foam. More videos in this series. Extend the foam beyond the wall be about 4 5 inches. Install two layers of rigid foam with the seams offset.

This video series focuses on an exterior retrofit of an old home in massachusetts. This will make it easier to weave into exterior wall foam when siding replacement happens. Tape the seams on the second layer.