WO2019129319A1

WO2019129319A1 - Parapet and valley gutter

Info

Publication number: WO2019129319A1
Application number: PCT/CZ2018/050064
Authority: WO
Inventors: Tomas TRUNECEK
Original assignee: BILBO Invest s.r.o.
Priority date: 2017-12-29
Filing date: 2018-12-24
Publication date: 2019-07-04
Also published as: CZ307749B6; CZ2017858A3

Abstract

A parapet and valley gutter consists of a single non-bonded piece of waterproofing covering (1) made of a supple and flexible material which is connected non-detachably to the underlying batten (2), most preferably by gluing, in such a way that the waterproofing covering (1) exceeds the width (21) of the underlying batten (2), which consists of one or more adjoining but not connected elements (23) so that it can be transported folded prior to the installation of the gutter itself on the building. The installed gutter is then furthermore provided with two outer side plates (3) of the gutter perpendicular to the underlying batten (2) and the inner side plates (4) located perpendicularly above the underlying batten (2).

Description

Parapet and valley gutter

The invention falls within the field of construction technologies, especially within the systems for draining water from roofs of buildings.

Currently, a number of commonly known roof gutter solutions are known, generally plumber structures made of sheet metal. The disadvantage of these solutions is in particular the inappropriateness of the metal material, which, especially in the winter period, easily causes freezing of the water in the gutter and thus its limited throughput. At the same time, such plumbing solutions require the connection of the internal parts of the gutter with threat of leakage, especially after long-term use.

The use a waterproofing covering in the form of a PVC film is also commonly known. However, this is often joined together from several parts, and there is a risk of undesirable leakage of the waterproofing covering in the locations of these joints. The anchoring of the waterproofing covering in the inner part of the gutter is then usually addressed by a detachable joint using screws as a rule, thereby also disrupting the integrity of the waterproofing material by its perforation, which then may again lead to leaks. The PVC film can also be fastened to the inner part of the gutter by fusing it in the gutters made of plastic covered sheet metal, but this often results in unevenness of the gutter surface, which can lead to imperfect drainage of the gutter. The waterproofing covering can also be formed by joining bitumen roofing felts, but the abovementioned drawbacks remain here as well, particularly with respect to the difficult attachment of the roofing felt to the inner part of the gutter in order to avoid the unevenness of the gutter surface.

The use of such types of gutters therefore requires frequent maintenance and restoration of the integrity of the waterproofing covering in places where it is damaged, whether at joints of its components or anchoring.

The subject matter of the invention is to provide a gutter designed for draining water as a parapet or a valley gutter for buildings with sloping roofs.

The principle of the invention is that the waterproofing covering is provided in the length corresponding to the length of the side of the roof to which the gutter is to be installed, without the need to glue or join more parts of the waterproofing covering. An underlying batten of wood or plastics with similar properties is attached to the underside of the waterproofing covering, which may be a single part corresponding to the length of the roof or, more preferably, of more closely adjoining but not connected parts, wherein the sum of their lengths corresponds to the required length of the gutter.

With this the present invention overcomes the drawbacks of the prior art since it does not require the roof gutter to be assembled by joining more parts of the waterproofing covering, which would otherwise require joints that are undesirable in the long run to maintain the waterproofing properties of the given covering. Other shortcomings of the state of the art are eliminated by the fact that the waterproofing covering is connected to the underlying batten in a non-detachable manner which does not interfere with the integrity of the waterproofing covering by its perforation, and hence also with its waterproofing properties; most preferably by a glued joint. At the same time it is possible to connect the waterproofing covering and underlying batten before installing it on the building, which prevents unevenness in the inner space of the gutter.

The material from which the waterproofing coating is made may be in particular PVC, but bitumen roofing felt can also be used as an alternative. The use of PVC is particularly preferable with regard to better material bending properties.

Dividing the underlying batten into more adjoining but not connected parts provides an advantage especially in the transport to the place of the installation of the gutter, as the waterproofing covering with the underlying batten can be folded or rolled into a cylindrical shape depending on the length of the individual parts of the underlying batten. Therefore, the individual parts for the gutter assembly can be prepared in advance for the given building, which shortens the time of installation of the gutter on the roof of the building.

Fig.1

illustrates an axonometric view of a waterproofing covering with an underlying batten attached according to the exemplary embodiment.

Fig.2

illustrates a side cross-section of the gutter according to the exemplary embodiment.

The preferred embodiment of the roof gutter consists of a single piece of waterproofing covering 1 in the form of a PVC film, to the underside of which an wooden underlying batten 2, consisting of adjacent but not connected parts 23, is attached with a hot melt adhesive. The underlying batten 2 is glued to the waterproofing surface 1 in its central part, with the width of the glued joint corresponding to the inner width 22 of the gutter which is shorter than the width 21 of the underlying batten 2. The underlying batten 2 is fastened to the underlying beams 5 with screws. The outer side plates 3 are fastened to the underlying beams 5 with screws, defining the outer width of the gutter, and the inner side plates 4 are fastened to the outer side plates 3 with screws, with the width 41 of the bottom side of the inner side plate 4 being equal to the difference between the width 21 of the underlying batten 2 and the inner width 22 of the gutter. The space between the beams 5 and under the waterproofing covering 1, exceeding the outer width of the gutter, is filled with a heat insulating material 6.

The parapet and valley gutter can be used mostly during construction of buildings with sloping roofs.

Claims

[Rectified under Rule 91, 27.05.2019]
A parapet and valley gutter for draining of water from the roof areas of buildings
characterized in that it comprises a single non-bonded piece of waterproofing covering
(1) made from a supple and flexible material, attached to the underlying batten (2) by a
non- detachable connection, wherein the waterproofing covering (1) extends beyond the
width (21) of the underlying batten (2), comprising at least one part (23), arranged under
the inner side plates (4) of the gutter.
A parapet and valley gutter according to Claim 1 characterized in that the underlying batten (2) consists of at least two longitudinally adjoining, but not connected parts (23).
A parapet and valley gutter according to Claim 1 or 2, characterized in that the width of connection of the waterproofing covering (1) and the underlying batten (2) is equal to the inner width (22) of the gutter.
A parapet and valley gutter according to any of the preceding Claims 1 to 3 characterized in that the length (11) of the waterproofing covering (1) is equal or larger than the length of the roof.
A parapet and valley gutter according to any of the preceding Claims 1 to 4 characterized in that the underlying batten (2) is arranged between outer side plates (3) of the gutter positioned perpendicularly to it, and under the perpendicularly positioned inner side plates (4) of the gutter.
A parapet and valley gutter according to Claim 5 characterized in that the outer side plates (3) of the gutter and the inner side plates (4) of the gutter are connected with a detachable connection.