Larsen trusses / Discussions

Do you have an updated recommendation for attaching exterior mineral wool insulation?

...Larsen Truss wall system. Either of those can be used to secure many varieties of insulation to the exterior of a wall assembly. Probably the easiest and most affordable method would be ThermalWall rigid foam insulation panels from Legalett. ThermalWall is an EPS rigid foam panel with a metal rail embedded in the middl...

Posted by Fred D Aug. 31, 2020 Wall assemblies - new construction 1 response

When using larsen trussees, what is the maximum spacing between TJIs

...larsen trusses outboard of my structural 2 x 4 framing. i read an article that was spacing TJIs at 4' oc and ws wondering how big a cavity can be efectively dense packed?    Larsen trusses with cellulose insulation on the exterior of walls is an excellent way to insulate an older home or a brand new home, and even meet...

Posted by steve outlet March 6, 2020 Wall assemblies - renovation 3 responses

Followup to the question How do you install Larsen Trusses on a home in Minneapolis?

...Larsen Trusses. My house like most in built in the early 1900's, has interior plaster walls with oil paint, 2x4 studs, and is insulated with blown in cellulose. The exterior sheathing boards are1x's. I’ve done thermal scans of the walls. There doesn’t seem to be excessive settling of the cellulose. I’ve checked the att...

Posted by Ken Traefald Feb. 27, 2020 Wall assemblies - renovation 1 response