Acoustic Membrane Installation Instructions
PLEASE NOTE !! OUR SPECIAL SPRAY ADHESIVE IS A CONTACT ADHESIVE. ONCE THE PRODUCT IS OFFERED UP TO THE SURFACE AND STUCK IT CANNOT BE EASILY RE POSITIONED.
INSTALLATION:
The membrane is normally fixed between plasterboard sheets using our special spray adhesive If you wish to up-rate the performance we would advise stapled a layer over stud faces before plasterboard sheets are added. This gives the best performance but is nowhere near as good as the full resilient bar system.
CEILINGS
Fill in the cavity space with our Acoustic Mineral Wool before fixing the Resilient Bars under the joists. Your first layer of 12.5mm plasterboard is screwed into the bars then you would adhere a layer of acoustic membrane to the second layer of plasterboard and then screw through the whole system taking care not to screw into the joists.
The membrane should be overlapped at any seams and can be adhered to the plasterboard before fixing to the ceiling.
PARTY WALLS
A party wall can be nominally up rated using the details below:-
1. Measure the wall drop and add 25mm to all overlaps then cut the membrane to size.
2. Apply our special spray adhesive to both surfaces, i.e. approx. 250mm across the top of the wall and 250mm across the top of the membrane. Leave to dry for approx.1 min.
3. Position the membrane near the wall allowing for all overlaps. Press into position adhering both glued surfaces.
4. When adhering membranes adjacent to one another repeat the procedure and overlap the joints by at least 25mm.
5. The membrane should now be hanging from a fixed point at the top of the wall like a curtain.
6. Repeat this procedure until the whole wall is covered.
7. Plasterboard over the top of the membrane, staggering the joints from the first layer using as few screws as possible.