FR2587391A1 - Lightened coarse protection device for roofs, terraces and other surfaces - Google Patents

Abstract

The subject of the invention relates to a lightened coarse protection device for roofs, terraces and other surfaces. It consists of the combination and superposition firstly of a spreadable material forming a waterproof layer 2 covering the support 1, then of a spreading of a so-called bonding intermediate layer 3 and finally of an external covering 4 based on granules of rubber or ground tyres bonded with a synthetic resin such as polyurethane prepolymers or the like. The subject of the invention relates to a lightened coarse protection device for roofs, terraces and other surfaces. It is intended to waterproof the roofs, terraces or covering parts which may be equally well inaccessible intended to be walked on, as well as for all surfaces to be waterproofed with a combined composite material having compositions which are, at the same time, lightweight, easily spreadable and resistant to the damaging effects of solar radiation and other mechanical or chemical attacks from outside agents.

Description

 The object of the invention relates to a lightweight heavy protection device for roofs, terraces and other surfaces.

 I1 is intended to ensure the waterproofing of roofs, terraces or covering parts that are both inaccessible and intended for circulation as well as for all surfaces to be sealed with a combined complex of compositions that are both light, easily spreadable and resistant to the degrading effects of solar radiation and other mechanical or chemical attack from outside agents.

 The materials used until now presented difficulties of bonding either between themselves or with the bearing surface whose coefficients of expansion and retraction reduced the homogeneity of the waterproof covering also undergoing the disintegrations caused by the solar ultraviolet rays of which the effects were aggravated by the pollution of outdoor adventures rendering sand, bitumen or other synthetic resins mixtures inoperative after a certain time, to these difficulties were added the weight of the materials as well as the installation operations with a hand 'specialized work.

 The device according to the invention eliminates these drawbacks by its compatibility with its support, its lightness and its ease of installation on site by requiring no specialized labor while allowing for so-called inaccessible roofs and terraces a perfect resistance to maintenance traffic with all the advantages of heavy protection, as well as for accessible surfaces it provides in addition to its mechanical resistance, soundproofing while forming a heat shield resistant to solar radiation; finally its ease of installation comparable to that of a traditional mortar does not require any particular site equipment or specialized labor, it achieves sufficient strength while retaining a certain elasticity and suppleness absorbing shocks and preventing injuries by fall.

 It consists of the combination and the superimposition first of a spreadable material forming a sealing layer covering the support, then of a spreading of an intermediate layer called attachment and finally of an external covering based on granules of rubber or crushed tires bonded with a synthetic resin such as polyurethane or other prepolymers.

In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows a perspective view and in section the combination of protections.

 FIGS. 2 and 3 respectively show the conventional sealing and the coating according to the device described.

 The surface to be covered with concrete or other bearing elements 1 receives a sealing layer 2 or film ensuring the sealing of the bearing surface and its permeable parts.

This covering using conventional synthetic materials and resins.

 On this bearing part, a so-called attachment layer 3 is spread, ensuring the connection between the sealing film 2 and the coating layer 4.

 This intermediate layer of synthetic resin such as polyurethane or other equivalent supports the coating 4 preferably consisting of 85% of latex or synthetic rubber granules forming a screen against solar radiation (ultra-violet) disaggregating conventional substances and 15% of synthetic resins ( polyurethane prepolymers) etc.

These materials are cold spreadable, such as
mortars and spread out before the polymerization relatively
slow luis ensures its functional consistency.

 These superpositions of layers taking place successively form a macromolecular compound causing their welding and achieving a homogeneous resistant and protective mass while retaining a certain flexibility ensuring its adhesion to the supports even if very slight movements of contractions or dilations occur on the bearing surface.

 This gives a lightness of the so-called heavy protection without specialized labor and with cold spread handling.

 This composite material is compact, aesthetic and seamless.

 I1 eliminates the use, figure 2, of the spreading on the concrete slab 5 of the sealing layer 6 with sand 7 supporting the concrete 8 receiving the paving 9 and fractioning joints 10 forming a support for the protection coated with cement mortar 11 to seal the readings 12.

 On the other hand, with the device using the superimpositions of the layers according to FIG. 3, the concrete slab 13 is completely covered with cold spreading by a homogeneous and practically monolithic covering 14 forming in a way a "carpet" both flexible and resistant whose bearing 15 without joint or fitting effectively protects and seals the lifts 16.

 However, the agents constituting the superimposed layers forming the waterproof covering may vary within the limit of equivalents, without changing the general design of the invention which has just been described.

Claims (2)

CLAIMS 1 "Lightweight heavy protection device for flat roofs and other surfaces intended to ensure the waterproofing of roofs, terraces or covering parts both inaccessible and intended for circulation as well as all surfaces to be sealed with a combined complex of compositions with both light, easily spreadable and resistant to the degrading effects of solar radiation and other aggressions from external agents, simplifying handling and usable without specialized labor, characterized by the combination and the superposition first of a spreadable material forming sealing layer (2) on the concrete or other support, then a spreading of an intermediate layer known as an attachment (3) and finally an external covering based on rubber granules (4).  20 Device according to claim 1, characterized in that the layer (2) is made of synthetic resin according to conventional compositions in the matter, while the spreading (3) known as attachment is constituted by elastomers and synthetic resins and finally the covering (4) is preferably in crushed rubber, such waste from tires or the like according to a particle size of 2 to 3 mm in proportion of 85% and agglomerated with polyurethane or epoxy prepolymer resins as well as all the polymers and derivatives as well as polyurethanes and derivatives in a proportion of 15%.  30 Device according to claim 1 cold spreadable, such as a concrete mortar without appropriate tools which forms, after overlays laminated in three layers, a homogeneous assembly, flexible and sufficiently compact to produce an isothermal and waterproof screen but retaining after polymerization or functional hardening, sufficient elasticity to absorb shocks in the event of a fall while allowing formings avoiding seals for continuous protection of the upstand and running parts without continuity solution without seals.