Significant improvement in Impact Sound Insulation can be obtained when using Profloor Dynamic Strip System under the chosen floor finish.
The use of Profloor Support Strip is recommended around the perimeter of all rooms and in areas such as bathrooms and kitchens where the load could exceed 1.4kN/m2.
The third element of the Dynamic Strip System is the use of a 5mm Profloor Flanking Strip to isolate the acoustic floor from the walls and skirting boards.
|Overall depth (Dynamic Strip)||28 mm|
|Overall Depth (Support Strip)||21 mm|
|Resilient Layer Depth (Dynamic Strip)||22 mm|
|Resilient Layer Depth (Support Strip)||17 mm|
|Compression Under Load||6-8 mm (Dynamic Strip)|
|Flanking Strip Dimensions||100 mm x 5 mm x 10 m Rolls|
|Maximum Floor Load (Standard)||Up to 1.4 kN/m2|
|Maximum Floor Load (Support)||Up to 4 kN/m2|
|Non-Loadbearing Partition On Finished Floor||No|
|Robust Detail FFT1||No|
|Robust Detail FFT2||No|
|Robust Detail FFT3||No|
|Robust Detail FFT4||No|
|Robust Detail FFT5||No|
It is normal practice to fix the ceiling before the floor.
In the ribbed floor with heavy pugging, a ceiling of two layers of plasterboard, with the joints staggered, to a total thickness of 25mm is fixed through the 6mm plywood to the timber joists.
A minimum of 80kg/m2 pugging is placed on top of the plywood. Advice on types of pugging material can be obtained from our Technical Department.
Further improvement on airborne transmitted sound insulation can be achieved by laying a 19mm plasterboard plank between the Profloor Dynamic Strip and the floor panels.
The floor finish can be chipboard or T&G flooring. The flooring should be isolated from the structure using Profloor Flanking Strip.
The ribbed floor with 100mm absorbent material, is placed on top of a ceiling of plasterboard, with joints staggered, of a total thickness of 30mm.
Ensure that no gaps are left between the absorbent material.
The floor finish can be P5 chipboard or T&G flooring on 19mm plasterboard plank. The flooring should be isolated from the structure using Profloor Flanking Strip.
The Profloor Dynamic Strip is laid, foam side on the joists and fixed using the fixing lugs provided, with nails or staples.
In a ribbed floor with quilt extra mass may be required. Apply Profloor Adhesive to the top surface of the Profloor Dynamic Strip.
Lay 19mm Plasterboard plank across Profloor Dynamic Strip, ensuring that all board ends rest centrally on a joist, and apply Profloor Adhesive to the surface before placing the final floor finish panels in position.
Care must be taken to avoid damaging the plasterboard plank prior to the application of the final floor finish.
Profloor Adhesive should be applied to the tongues of all wood flooring panels before fitting them together. Any surplus adhesive should be removed from the surface before it dries.
To ensure stability in the finished floor where the wood flooring panel is applied direct to the top of the Profloor Dynamic Strip, it is recommended that a timber support batten is used between joists where floor panels join mid span. Alternatively use a plywood glued to Profloor Dynamic Strip below floor finish.
Where access below the flooring system, is required the necessary hatch can be cut in the floor finish material. Additional strips should be placed round the perimeter of the hatch to support the main floor and the hatch cover. This may require additional timber noggins.
Fold the Profloor Flanking Strip onto the floor board, apply weight to compress the system (the Tradesman’s weight is normally sufficient) and fix the skirting so that it rests on the Profloor Flanking Strip.
Trim the edge of the Profloor Flanking Strip flush with the skirting. This operation will ensure that the integrity of the floating floor is not affected by flanking transmission.
If new or additional partitions are required, advice must be sought, from the manufacturer, prior to laying if the design requires that these be taken off the finished floor.
When a concentrated floor loading is in excess of 1.4kN, ie. (under bath, WC, Kitchen unit or night storage heaters) a Profloor Support Strip can be supplied for use in small local areas. Additional noggin support may be required.
The Profloor Support Strip will give the same finished floor level, under the loaded floor, as the standard system under normal loading.
Care should be taken at the design stage to ensure that the fire stops are fitted to the same standard as that required for the Fire Doors. Technical advice can be provided for individual projects.
To prevent damage by following trades, the finished floor should be covered with a protective layer immediately after installation.