Larsen truss / Guides

...Larsen Truss wall design: This wall system was developed in 1981 by a builder in Edmonton, Alberta named John Larsen (hence the name), and while the original wall was 8 ¼” thick, they can be made as thick as you like. Larsen trusses use a variety of insulation types, including batt insulation (Rockwool or fiberglass)...

...Larsen trusses with cellulose or batt insulation A Larsen truss wall is one with engineered I-joists attached to the outside of a stud or brick wall, which then creates a cavity that can be filled with additional insulation . You can add batt insulation, dense pack cellulose, rigid insulation panels or spray foam if ...

...Larsen truss wall system clad with 1x8 board sheathing and filled with dense pack cellulose insulation , designed by Southern Exposure, provides a thermal bridge-free building envelope that is fast to assemble with minimal work on staging. It keeps the insulation in the same plane as the foundation insulation. Interi...

...Larsen Truss design - see here to read more and see the video. However, with greater insulation comes greater risk of condensation because of the longer constant temperatures and the greater temperature differential between inside and out. In this situation, it is recommended to use a semi-permeable retarder on the i...

...Larsen truss wall system . If you like the shape of the house and the supporting walls are in relatively good condition, retrofitting, renovating and insulating house walls from the outside is a great option to choose. You will save demolition costs, and save the material and labour costs of framing a new structure. ...