1. Sequence
It is normal practice to fix the ceiling before the floor.
2. Heavy Pugging 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. (See figure 1)
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. (See figure 2)
The floor finish can be chipboard or T&G flooring. The flooring should be isolated from the structure using Profloor Flanking Strip.
3. Absorbent Quilt Floor
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. (See figure 2)
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.
4. Fixing Dynamic Strip to joists
The Profloor Dynamic Strip is laid, foam side on the joists and fixed using the fixing lugs provided, with nails or staples. (See figure 3)
5. Fixing Floor Finish
In a ribbed floor with quilt extra mass may be required. Apply Profloor Adhesive to the top surface of the Profloor Dynamic Strip. (See figure 4)
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. (See figure 5)
Care must be taken to avoid damaging the plasterboard plank prior to the application of the final floor finish.
6. Gluing Tongues
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. (See figure 6)
7. Wood Flooring Panels
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. (See figure 7)
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.
8. Skirting
Fold the Profloor Flanking Strip onto the floor board, apply weight to compress the system (the TradesmanÕs 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. (See figure 8)
9. Partitions
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.
10. Kitchen/Bathroom
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.
11. Fire Stops
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.
12. Protection
To prevent damage by following trades, the finished floor should be covered with a protective layer immediately after installation.