RU2532048C1 - Device to remove ice and snow from roof - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely, to construction of new and reconstruction of existing roofs of buildings and structures with a metal roof. The roof is equipped with a device to remove ice and snow, which represents an anti-icing coating from a thin-sheet material arranged in the lower part of the roof and on a rainwater head. The anti-icing coating is fixed to the roof and the rainwater head with the help of assembly foam that fills free space between the inner side of the anti-icing coating and the outer side of the element of the water drainage system.

EFFECT: increased operational reliability of the roof.

3 cl, 5 dwg

Description

Description of the invention.

The invention relates to the field of construction, namely the construction of new and reconstruction of existing roofs of residential buildings, buildings and structures with a metal roof.

A device is known for removing ice on the lower boundary of pitched roofs (see RU 2392398 “Device for removing snow and ice from the eaves of a roof”), the essence of which is the equipment for lowering the roof with a system of heating electric cables protected from mechanical damage, and a device is known for removing ice from the drain pipe funnel (see RU 2158808 C1 “Device for shock-free removal of ice from the drain pipe funnel”), the essence of which is to transform th state funnels downspout from summer mode to winter mode and vice versa, from winter mode to summer mode.

The disadvantage of these devices is their low reliability, the complexity of installation and inaccessibility for the examination of technical condition and repair. Devices can be installed on newly constructed facilities and are practically not suitable for use on operating facilities, as this requires the dismantling of existing structures and replacing them with new ones equipped with these devices.

The prototype is a known device for protecting the roof from the formation of ice (see RU 2310727 C1 "Device for protecting the roof of a building and structure from the formation of ice and icicles"). The device consists of an anti-icing coating made of waterproof fabric fixed to the upper edge of the drainage system element, in this case, on the gutter, and is equipped with a heating cable installed under the anti-icing coating on the upper edge of the drainage system element. The device involves reliable tight fastening of the anti-icing coating on the upper edge of the element of the drainage system, preventing the penetration of water under the anti-icing coating. For the safe installation of such a device on operated buildings, the construction of special scaffolding on the outside of the building will be required.

The disadvantage of this device is the complexity of its installation on the roofs of operated buildings and hence the high cost of construction and installation works.

The aim of the invention is to eliminate the disadvantages associated with the complexity of the installation of the anti-icing coating on the roofs of operating buildings.

This goal is achieved by the fact that in the device for removing ice and snow from the roof, which includes a metal roof with elements of a drainage system, including a gutter and funnel of a drainpipe, and an anti-icing coating of sheet material, a cavity between the inside of the anti-icing coating and the outside element of the drainage system, whether it is a gutter or funnel of a drainpipe, is partially or completely filled with a sealing porous heat-insulating material having a durable contact with surfaces in contact with it. The anti-icing coating in its upper part can bend around the inner side of the vertical wall of the element of the drainage system, whether it is a gutter or funnel of the drainpipe, and in its lower part it can have a closed loop, the outer surface of which is smooth, without sharp bends, and is made of water-repellent material.

The anti-icing coating can be made of a polymer material (membrane), including reinforced with a metal mesh, or of mild steel with a polymer coating. A heating electric cable can be placed in the lower closed loop of the coating, and the loop itself is filled with porous heat-insulating material.

An anti-icing coating with a bend in the upper part is freely positioned, for example, on the roof slope so that the in-place bending of the coating engages on the inside of the vertical wall of the gutter and, thus, fixes its position on the roof. Then, a small amount of polyurethane foam (foam, polyurethane foam, etc.) is injected into the holes pre-made in the anti-icing coating and punched out in the form of U-shaped tongues, which, hardening, rigidly attaches the anti-icing coating to the roof. After preliminary fixing the anti-icing coating on the roof, a mounting foam is injected under it, which fills all the voids and creates an air-tight contour under the coating that prevents water runoff, and firmly attaches the anti-icing coating to the metal roof. Additionally, anti-icing safety belts may be provided in the form of, for example, wire strands tied to a fence. In the manufacture of an anti-icing coating from a polymeric film material for its initial fixation on the roof, for example, metal hooks placed on the film in place and clinging to the vertical wall of the gutter can be used, or other possible mounting fixing schemes are used that are not associated with mounting to the gutter. The anti-icing coating on the drainpipe funnel can be carried out in a similar way or with preliminary dismantling and subsequent restoration of the funnel on the drainpipe.

The proposed device for removing ice and snow from the roof is shown in the drawings:

figure 1 - General view of the roof;

figure 2 - device for removing from the roof of ice and snow. The arrangement of the device on the roof slope with the fixing of the anti-icing coating over the vertical wall of the gutter;

figure 3 - a device for removing from the roof of ice and snow. The arrangement of the device on the drain funnel, cross section;

figure 4 - the same section 1-1;

5 is a device for removing from the roof of ice and snow on the roof. Option with a dividing wall.

The roof includes a rafter system 1, a strapping 2 and a metal roof 3 placed on it, with elements of a drainage system, including a gutter 4 and a drain funnel 5, as well as an anti-icing coating 6 made of sheet material placed on the descent 7 and on the drain funnel 5. An anti-icing coating 6 of sheet material (the drawings show a polymer coating reinforced with a metal mesh) in its upper part bends around the vertical wall of the element of the drainage system, whether it is gutter 4 or funnel 5 of the drainpipe. In the lower part, the anti-icing coating 6 has a closed cavity equipped with a heating electric cable 8 and filled, for example, with a porous heat-insulating material 9. The cavity between the inner side of the anti-icing coating 6 and the outer side of the drainage system element, whether it is a gutter 4 or a funnel 5 of the drain pipe, partially or is completely filled with a sealing porous heat-insulating material 10 having strong contact with surfaces in contact with it. On top of the funnel 5 of the drainpipe is covered with an anti-icing coating 11. On the roof slope 3, for the option of partially filling the cavity with material 10, a dividing wall 13 can be installed.

In the warm season, water from the metal roof 3 through the drainage system, including the gutter 4 and a drain pipe with a funnel 5, is discharged to the relief. In the cold season, the drainage system is clogged with ice and water formed by melting snow and ice on the metal roof 3 over the vertical walls of the drainage system, gutter 4 and drain pipe funnel 5 flows onto the outer surface of the de-icing coating. The adopted anti-icing coating 6 and the special shape of its lower part, filled with porous heat-insulating material 9 with insignificant heat capacity, significantly reduce the possibility of formation of ice from the water flowing from the roof, the heat capacity of which is significantly higher than the heat capacity of the anti-icing coating 6 made, for example, from a polymeric material. Dangerous frosts are removed from the anti-icing coating 6 by periodically connecting the heating electric cable 8 located on the lower boundary of the coating 6 to the power supply system 6. Inside the closed circuit of the lower part of the anti-icing coating 6, instead of a porous heat-insulating material 9, a tubular element can be placed, for example, of foamed polyethylene or foam rubber, etc.

A fairly simple and non-laborious way of fixing the anti-icing coating 6 on the descent 7 allows the installers to perform this work, being in a safe area, behind the fence 12.

Claims (3)

1. A device for removing ice and snow from the roof, which includes a metal roof with elements of a drainage system, including a gutter and a funnel of a drainpipe, and an anti-icing coating of sheet material, characterized in that the cavity between the inner side of the anti-icing coating and the outer side of the element of the drainage system, whether it is a gutter or funnel of a drainpipe, is partially or completely filled with a sealing porous heat-insulating material that has strong contact with relating to the underlying surface. 2. The device according to claim 1, characterized in that the anti-icing coating in its upper part bends around the vertical side of the element of the drainage system from the inside, whether it is a gutter or funnel of a drainpipe. 3. The device according to claim 1, characterized in that the anti-icing coating in its lower part has a closed circuit, the outer surface of which has a smooth, without sharp bends, shape and is made of water-repellent material, and a heating electric cable is placed inside the circuit.

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