This paper presents structures of timber-framed walls designed for passive houses, using natural and waste resources as insulation materials, such wool, wood fibers, ground paper, reeds (Phragmites communis), Acrylonitrile Butadiene Styrene (ABS) wastes. The systems stud composed wool–ABS composite boards five types fillers (wool, ABS, reeds) were investigated to reach U-value requirements hous...