As you may know, our thin SoundBlocker Membrane is a lightweight sound barrier mat designed to upgrade the soundproofing of a ceiling when installed between layers of high density acoustic Plasterboard. Because this product is thin and floppy, it can be extremely difficult to bond to the underside of a ceiling before fixing the covering layer of Acoustic Plasterboard. Instead of trying to fix the membrane directly to the ceiling, it will be easier to glue it to the second layer of Acoustic Plasterboard before screwing it to the ceiling. The SoundBlocker Membrane is the same width as plasterboard sheeting so all that has to be done is cut it to the length of plasterboard about to be fitted then glue it to the sheet with our special aerosol contact adhesive. Sandwiching the membrane between two sheets of high density plasterboard decouples the mass of the plasterboard with a thin layer of much higher mass making the soundproof properties of the structure much more efficient. This is a system that can be applied to existing ceilings without the need for removal of the original. Simply glue the Acoustic Membrane to a 15mm panel of Acoustic Plasterboard then screw it to the existing ceiling ensuring the screws are long enough to engage in the supporting joists above.
If you are looking for a more efficient degree of soundproofing then if the existing ceiling is plasterboard, it should be removed. A new acoustically efficient ceiling can then be fitted and decoupled with our Resilient Bar system and for an enhanced result, 100mm of AMW type Acoustic Mineral Wool should be loosely fitted between the joists resting on top of the Resilient Bars. The new ceiling should comprise two layers of 15mm Acoustic Plasterboard with the Acoustic Membrane sandwiched in the middle and fitted as described above.
This method is not recommended for lathe and plaster ceilings. With these, because they are acoustically more efficient than plasterboard ceilings, it is best to leave them alone and simply add a membrane treated sheet of 15mm Acoustic Plasterboard as previously described.
And on no account should inset ceiling lights be fitted into an upgraded, soundproofed ceiling because the hole necessary for fitting these will just let the noise straight through. For more information on how to soundproof a ceiling, go to our web site www.soundservice.co.uk