Airborne sound insulation of a novel environmentally friendly straw wall

Abstract

The building demand for environmentally friendly materials has led to develop new systems such as "Pablok", a panel made up of a wood platform frame, insulated with compressed straw and covered with a gypsum fiber board, applied to the wall or the deck. Straw is the inedible stalks, especially of certain species of grain, chiefly wheat, rye, oats, and barley. Unlike hay, which is used as a forage, straw does not attract mice or insects and does not rot unless wetted. The sound reduction index in laboratory was measured for a wall 39.25 cm thick with a wall lining with CW profile-single layer cladding for a total thickness of 46.5 cm. The study shows the airborne sound insulation measured in laboratory and in situ and compares the results with a software prediction.