Question28
28. What products do you have for use as a resilient
layer within a concrete intermediate floor to achieve the
requirements of Part E of the Building Regulations for sound
insulation?
For floor Type 2 constructions the structural concrete floor
should be at least 150mm thick with a minimum mass of 300kg/m3 and
overlaid with a 65mm sand and cement screed. A resilient layer of
Rocksilk Acoustic Floor Slab Plus is laid on top of the screed and
then overlaid with 18mm of chipboard. The floor can be constructed
from cast concrete or concrete planks. The ceiling should be
constructed of 15mm standard Knauf Wallboard in conjunction with
the Knauf C Form II ceiling system. This is a Robust Detail and
Post Construction testing is not required.