In Tests the Posi-Joist's Performance is Sound
The MiTek Posi-Joist has been tested and now complies with the minimum level of 40dB for the new part E of the building regulations for intermediate domestic floors.
Click here to see a copy of the report in pdf format.
Note: Posi-Joist open web beams have better acoustic properties than solid timber or I-beams in the same deck / ceiling build up.