SOUNDPROOFING OF WOODEN SLAB

perekritie maxforte

PROCESS CHART: 

Step 1

Attach sheets of gypsum fiberboard (GF) 12.5 mm in thickness and gypsum plasterboard (GP) 12.5 mm in thickness underneath the load bearing beams. The joints between the sheets of each layer have to be puttied. 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. 

The sheathing sheets must not touch the adjoining walls, the floor and the ceiling directly. Apply two layers of MaxForte damping tape between the sheets and the walls.

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

Step 2

Infilling with dry silica sand or debris (broken bricks, broken stone, sand, etc.) is desirable to make the slab heavier. The infilling layer should amount to 1/3 of the beam thickness (minimum infilling thickness is 5 cm).

Step 3

The remaining space between the beams should be filled with MaxForte-ECOplate 60 kg/m3 sound absorbing material in one or several layers depending on the height of the load bearing beams.

Step 4

Cover the load bearing beams with strips of MaxForte-SoundPRO cut according to the width of the beams.

Step 5

Place wooden floor covering of plywood sheets in two layers on MaxForter-SoundPRO (it is better if the plywood sheets of the first and second layers differ in thickness). The total thickness must be 3-4 cm. The floor covering layers should overlap so that joints do not butt. Seams in adjacent layers should be spaced at a distance equal to half of the sheet width.  

Stick the plywood sheets to each other using PVA adhesive and fasten with self-tapping screws. Glue the second layer to the previous one and fasten with self-tapping screws until the adhesive dries.

Important! Plywood sheets must not have any rigid connections with either load bearing beams or walls. Plywood sheets should not be screwed to the beams. Plywood sheets should be detached from the building structure (beams, walls) with MaxForte damping tape (see cl. 1)which does not allow vibration to be transferred from the top down.

After the sheets have been mounted, treat the seams along the perimeter (i.e. where the soundproofing structure adjoins the walls, the floor and the ceiling) with non-drying MaxForte silicone sealant.

Step 6

After the slab soundproofing work is over, MaxForte-Light elastic base should be laid on the floor covering under the final flooring (laminated or parquet flooring).