Light gauge steel with lightweight concrete technology
Cellular concrete (lightweight aerated concrete) infill for walls
If you or your clients don't like hollowness sound coming from drywall partition walls you can use cellular concrete infill with 500 - 600 kg/m3 density. Cellular concrete will provide you good sound and thermal insulation and your walls or house will be strong and solid like concrete building. Light gauge steel frame construction technology much more faster then conventional. Just replace glass wool or rock wool with cellular concrete and you will be happy.