potolok vibrostop pro usilennii

Soundproofing of the ceiling takes 9-10 cm.


Step 1

Before starting works related to soundproofing of the ceiling, examine the ceiling thoroughly for cracks. Cracks have to be pointed and filled up with cement and sand grout (CSG).

Examine locations where slabs adjoin walls. If any gaps are discovered, they have to be eliminated as well.

Step 2

Attach MaxForte-SoundPRO rolls to the ceiling throughout the entire area using umbrella dowels 70 mm in length (2-3 dowels per m2). Rolls should be laid with a 4-5 cm overlap. Smear the joints between MaxForte-SoundPRO rolls with MaxForte-HydroStop liquid rubber or sealed up with reinforced mounting tape.

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Step 3

Mount the frame of two-level suspended ceiling using KNAUF CP 60/27 mm ceiling profile elements. Load-bearing profiles should be attached to the ceiling by means of VibroStop PRO vibration mounts.

Guide elements of the frame must not adjoin the walls rigidly. Apply two layers of MaxForte damping tape under guide profiles.

Important! After the frame has been assembled, unscrew the concrete nails from KNAUF CP 27/28 mm guide profiles.

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Step 4

Fill the space between the metal frame studs tightly with MaxForte-ECOplate 60 kg/m3  sound absorbing material.

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Step 5

Mount sheathing materials in the following sequence:

а. Gypsum fiberboard (GF) 10mm in thickness (or gypsum plasterboard 12.5 mm in thickness).

b. Treat the seams between the GF sheets with MaxForte silicone sealant.

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c. Gypsum plasterboard 12.5 mm in thickness.

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Seam spacing should be ensured: joints between GF sheets and joints between GP sheets should be placed apart at a distance equal to half of the sheet width.

d. Joints between GP sheets have to be puttied. 

After the ceiling soundproofing has been mounted, treat the seams along the perimeter (i.e. where the soundproofing structure adjoins the walls, the floor and the ceiling) with MaxForte non-drying vibroacoustic sealant. The use of sealing foam is not allowed!