CZ22649U1 - Suspended floor provided with flooring assembly - Google Patents

Description

Ceiling construction with floor construction

Technical field

The technical solution relates to a ceiling structure provided with a floor structure consisting of layers of impact and acoustic insulation, in particular a beam ceiling structure consisting of wooden beams provided with a flap.

BACKGROUND OF THE INVENTION

The joist ceilings used to a large extent in the construction of family houses and multi-dwelling houses are usually made up of wooden longitudinal beams, between which there is an offset transverse stiffening and on which an OSB board is pressed, ie pressed boards of oriented flat chips connected by artificial resin. On the flap there is a layer of cast concrete reinforced with a steel net and a floating floor is laid on it. A gypsum ceiling is suspended at the bottom of the load-bearing beams, above which a mineral wool damping layer is inserted. Measurements of the acoustic transmittance of such ceilings show that these constructions often do not meet the requirements of the relevant CSN 73 0532. Noise penetrating from higher floors may limit the comfort of the occupants of the apartment. It turns out that these ceilings often show concrete ceilings of prefabricated houses.

The object of the technical solution is to propose a ceiling structure provided with a floor structure which would substantially reduce the disadvantages of the known solutions.

The essence of the technical solution

This object is solved by a ceiling structure provided with a floor structure consisting of layers of teat and acoustic insulation, the principle being that the acoustic insulation consists of at least one layer of fiber-cement boards.

On the layer of fiber-cement boards can be laid flexible foil and on it own floor.

The ceiling construction can be a joist ceiling consisting of wooden beams fitted with a flap, on which, in a family house construction, a layer of impact insulation is laid and on it a layer composed of more than two superimposed fiber-cement boards.

In the construction of a beamed ceiling for apartment buildings, where the acoustic insulation is more demanding, a flexible foil is placed on the flap, a layer of more than two fiber-cement boards is placed on it, a layer of impact insulation is placed on it. than two superimposed fiber-cement boards.

The timber beams can be provided with a bottom flap that fulfills the static function of transverse stiffening. By eliminating lateral bracing, the acoustic bridges are reduced and the acoustic transmittance of the ceiling is reduced.

A gypsum ceiling can be suspended on the bottom flap, with a layer of mineral insulation between it and the flap.

Overview of the drawings

The technical solution will be further elucidated by means of the drawing, in which Fig. 1 is a cross-section of an embodiment of a ceiling structure intended for apartment buildings and Fig. 2 is a cross-section of an embodiment of a beam ceiling structure also intended for apartment buildings.

Examples of technical solution

The ceiling structure according to FIG. 1 is formed, for example, by a concrete slab 1. On it is placed a 35 mm thick mineral wool isover and a layer composed of four fibrous-cement plates 3 cemvin reinforced with cellulose and polymer fiber. Thickness

- 1 GB 22649 The boards are 15 mm. Any floor, for example a laminate floor, can then be laid on the layer of fiber-cement boards 3, preferably on a flexible foil, for example mirelon.

The joist ceiling structure according to FIG. 2 is formed by 240 mm high wooden beams 4 on which the upper deck 5 of 22 mm thick OSB is nailed and an underside 6 is anchored from below, also of 22 mm thick OSB boards.

On top of the top flap 5, a 3 mm thick mirror film 7 of mirelon is laid on top of it and four superimposed fiber-cement boards 3 of cemvin having a total thickness of 60 mm. On them there is a 35 mm insulation layer of isothermal insulation 2 with a layer of insulation and another layer composed of four superimposed fiber-cement boards 3 cemvin. The elastic foil 7 of the foamed polyethylene and the floating floor 8 lie thereon. A plasterboard ceiling 9 is suspended from below on the bottom flap 6. A layer of mineral insulation 10 60 mm thick is interposed between it and the bottom flap 6.

The designed construction achieves the characteristics of the limit values required by our valid legislation with its computational sound insulation. In a particular embodiment, the ceiling structure can be solved using flexible hinges that are capable of significantly improving the sound insulation parameters at the cost of some increase in acquisition cost.

Apart from the acoustic properties, the advantage of the designed design is the fact that it does not require poiiiviu j vii wu i vuinvu yivwuut

Claims (6)

PROTECTION REQUIREMENTS Ceiling structure provided with a floor structure comprising layers of impact and acoustic insulation, characterized in that the acoustic insulation consists of at least one layer of fiber-cement boards (3). Ceiling structure according to claim 1, characterized in that a flexible foil (7) and its own floor are laid on the layer of fiber-cement boards (3). Ceiling structure according to claim 1 or 2, characterized in that the ceiling is formed by wooden beams (4) provided with an upper flap (5) on which the impact insulation layer (2) is laid and a layer composed of more than two superimposed fiber-cement boards (3). Ceiling structure according to claim 1 or 2, characterized in that the ceiling is formed by wooden beams (4) provided with a top flap (5), a flexible foil (7) is placed on the flap (5), a layer of more than two fiber-cement boards (3) and a layer of creep insulation (2) on which a further layer composed of more than two superimposed fiber-cement boards (3) lies. Ceiling structure according to claim 3 or 4, characterized in that the wooden beams (4) are provided with a bottom flap (6). Ceiling structure according to Claim 5, characterized in that a plasterboard ceiling (9) is suspended on the bottom flap (6), and a layer of mineral insulation (10) is interposed between them and the bottom flap (6).