Rockwool SlimFloor is laid in a staggered joint pattern starting from the furthest corner of the room from the doorway, using pva glue at the joints of the t&g.
Flanking strips are required between the floor edge and wall/skirting junctions to ensure that the SlimFloor does not contact the wall and door frames. The flanking strips must be composed of a resilient material (e.g. a minimum 5mm foamed polyethylene layer with self adhesive backing.
E4- Airborne: Rw 55 dB Impact: 55 dB Lnw Test Report ref. Robust Details Appendix D Rockwool SoundPro guidance specification . Rockwool Slimfloor (FFT5 – 10mm Rockwool prebonded to 18mm t&g chipboard) on . 10mm screed on . 150mm precast hollow cored unit 300 Kg/m2
E-FC-1 . Floating floor -FFT5 Rockwool SlimFloor Screed 40mm min. screed directly applied to plank cement: sand or proprietary screed 80 Kg/m2 (min.) mass per unit area. . Structural floor 150mm min. precast concrete floor plank 300 Kg/m2 (min.) mass per unit area. . Ceiling See Robust Detail handbook for suitable ceiling treatment
The sound insulation performance is increased if 25mm Rockwool Acoustic Partition Slab is placed in the ceiling void.
Vapour Barrier Rockwool Slimfloor incorporates an aluminium vapour barrier pre bonded to the insulation.
Internal Partitions
These should not be built directly off SlimFloor but from the deck via a timber sole plate. Mechanical fixings through the SlimFloor to the sub deck should be avoided.
