They then built a new stud wall between the two rooms and created a doorway into the bedroom, by taking some space from their son's room. (idealhome.co.uk)
Think of a regular 2 by 6 vertical stud wall, then add horizontal 2 by 4 straps on edge to the outside of the 2 by 6 wall. (builditsolar.com)
Both the roof and walls were constructed from a prefabricated double - stud wall with mineral wool insulation, with taped - andsealed OSB providing the airtightness. (passivehouseplus.ie)