ITMI940825U1 - SELF-ASSEMBLING SYNTHETIC FLOORING FOR FLAT ROOFS AND INTERNAL AND / OR EXTERNAL SURFACES EVEN SUBJECT TO A CHEMICAL ATTACK - Google Patents

Description

Description of the Utility Model entitled:

"SYNTHETIC SELF-ASSEMBLING FLOORING FOR FLAT ROOFS AND INTERNAL AND / OR EXTERNAL SURFACES ALSO SUBJECT TO CHEMICAL ATTACK"

DESCRIPTION

The present innovation relates to a self-erecting flooring, to be used mainly for covering flat roofs, generally suitable for supporting small loads, where a covering resistant to atmospheric, chemical and bacterial agents is required.

It is known that flat roofs, capable of supporting loads much lower than 100 kg / m2, must, for technical and practical reasons, have an exposed waterproof covering.

In this case, even with the use of self-protected waterproofing materials (shot blasted, laminated, etc.), the roof, despite having the characteristics of a terrace, can only be walked on occasionally and for service reasons.

Due to UV rays, seasonal temperature changes combined with atmospheric events, most of the exposed surfaces known so far tend to degrade over time, compromising the waterproofing of the building.

Furthermore, various traditional walkable surfaces, such as industrial floors, sidewalks, discharge flaps for materials and chemical or food products, are subject to chemical or bacterial attack, because they normally consist of cementitious or bituminous conglomerate surfaces.

In addition to the aforementioned disadvantages, current flooring has the drawback of not providing acoustic protection.

EP-A-0441728 proposes a prefabricated plastic tile intended for covering roofs or terraces, which has the drawback of a horizontal insertion using a tenon and mortise as well as the fact that it does not constitute a finished flooring.

WO-92/20885 proposes a plastic tile with a perforated upper surface, the holes of which are not provided for a drainage function, but to accommodate colored pegs suitable for forming writings or graphic indications. The closing system of these holes does not allow perfect waterproofing and therefore not even the use of the aforesaid tile in the construction of chemical-resistant floors.

The present innovation aims to overcome the above advantages by providing a new type of self-assembling flooring resistant to impact, chemical and bacteriological attack, low and high temperatures and atmospheric agents.

The flooring according to the innovation consists of prefabricated tiles in plastic material (linear polyethylene with high and medium density, low density, polypropylene, polystyrene, polyvinyl chloride, polytetrafluoroethylene nylon, conglomerates of plastic materials regenerated from waste, synthetic resins, etc.), said tiles being able to be laid directly on the waterproof covering, with self-fixing (lateral hooks), able to give the flooring resistance to translation movements due to grazing friction (walking) and to the effects of the wind that could make the roof "float".

The surface of the tiles is suitably perforated to allow the outflow of rainwater inside, allowing the covering surface to be completely covered above the rain drains, eliminating leaf guards and expanding the space for receiving water.

Thanks to the structure of the product consisting of plastic material with thermal insulation properties and the underlying air chamber, the tiles, if dry laid directly on the waterproof covering or on the thermal insulation layer, actively contribute to insulating the roof, protecting the underlying layer from sudden changes in seasonal temperatures, chemical attack by sulfur dioxide and UV rays, thus limiting aging.

Another advantageous feature is that which allows to acoustically isolate the underlying environment from the noise, by absorption through the holes above and by dispersion linked to the internal structure.

The flooring according to the invention also allows the construction of the "inverted roof", a construction technique of German origin, which provides: the waterproof covering also acting as a vapor barrier laid directly on the slab, the insulating panel, made of material resistant to water, above this and the pavement built with prefabricated concrete or loose gravel squares (15-30 mm) as the final layer.

Also in this case, similarly to the case of flat roofs with visible waterproofing, it would not be possible, if not in the presence of a load-bearing structure designed to support the loads related to the flooring (cast in situ in bricks or gravel), to build the "roof reverse".

With the aid of the flooring according to the innovation, it is possible to lay the tiles (40x40 cm, 20x40 cm, 30x40 cm or other measures technically compatible with the laying surface) directly on the insulating panel, increasing its thermal insulation coefficient without burdening the structure.

The same tiles, without through holes so as to present a continuous and waterproof surface, laid with bedding mortar or drowned in the cementitious or bituminous conglomerate (asphalt) with the joints sealed with silicone or in cases of chemical attack determined with epoxy mastic, allow to coat surfaces that can undergo erosion or partial solution following the attack of chemicals, oils, greases, food products, for example dumps for unloading food chemicals, storage areas for products or industrial waste, etc.

The roofing tiles according to the innovation, in particular the 20x40 type, can be easily laid on the ground, also to create paths and support surfaces in gardens, outdoor areas, pitches for campsites, sports facilities, etc.

The upper holes allow, in cultivated sites, the passage of the grass, strengthening the installation of the artifact in the ground and thus creating a partially green area that can be walked on and non-slip.

Further characteristics of the innovation will become clearer from the detailed description that follows, referring to a purely exemplary and therefore non-limiting embodiment thereof, illustrated in the attached drawings, in which:

Figure 1 is a perspective view of a tile according to the invention;

Figure 2 is a top view of the tile of Figure 1;

- figures 2A and 2B are sections taken, respectively, along the lines A-A and B-B of figure 2;

- figure 3 shows, in section and in cross section, an example of use of the flooring according to the invention.

With reference to these figures, a tile 1 is provided with projections 2 suitable for engaging in suitable seats 3 so as to carry out a simple coupling with adjacent tiles. These protrusions 2 can be arranged on any side of the tile, preferably on two contiguous sides.

The surface 4 of the tile is provided with holes 5.

Figure 2 shows a tile 1, of rectangular shape, provided with projections 2 on two of its four sides. From the sections of figures 2A and 2B it can be seen that the lower part of the tile 1 is divided into compartments 6, preferably all equal and square in shape, separated from each other by reinforcing ribs 7. Said compartments 6 also serve to absorb the waves sound coming from outside.

In the example of use of figure 3, a flooring 12, composed of tiles 1 assembled by interlocking through the projections 2 and the seats 3, is laid on a layer 13 composed of water-resistant thermal insulating panels 8, generally made of expanded polystyrene high density. Said layer 13 rests in turn on an impermeable covering 9, which also constitutes a vapor barrier; said waterproof covering 9 completely covers a cement-based load-bearing slab 10. Finally, a flashing 11 covers the edge 14 of the roof.

This complex forms the so-called "inverted roof", characterized by having the waterproof layer directly in contact with the slab.

If the tile 1 is to be used to pave flower beds or gardens, the laying takes place in the same way, and in addition it can be provided that the projections 20 on the lateral edges of the tile are protruding and pointed so as to stick into the ground.

Finally, if the tiles 1 must resist chemical attack, their upper surface 4 is completely closed and, after laying, the joints are sealed.

Claims (7)

CLAIMS 1. Self-assembling flooring tile for flat roofs, internal and external surfaces, made of plastic material and having mutual coupling means (2, 3) which allow it to be assembled to adjacent tiles, and provided with holes (5) on all or part of its surface (4), below which there are compartments (6) delimited by ribs (7). 2. Tile according to claim 1, characterized in that said holes (5) are grouped in squares in correspondence with said lower compartments (6), which are also square. 3. Tile according to claim 1 or 2, characterized in that lower pointed projections (20) are provided along its peripheral edge. 4. Tile according to claim 1, characterized in that said surface (4) is completely closed and waterproof. 5. Self-erecting flooring for flat roofs, internal and external surfaces, consisting of tiles according to any one of claims 1 to 4. 6. Flooring according to claim 5, particularly for flat roofs, characterized in that it is laid on a layer (13) composed of water-resistant thermal insulating panels (8), in turn resting on a waterproof covering (9), covering a concrete slab (10). 7. Flooring according to claim 5, particularly of the type resistant to chemical attack, characterized in that it uses tiles with a closed surface (4) and provides for sealing the joints between adjacent tiles after assembly.