CN212773183U

CN212773183U - Sheet material under roof and roof structure of building

Info

Publication number: CN212773183U
Application number: CN202020905618.3U
Authority: CN
Inventors: M·瓦伦丁
Original assignee: Yongdinning Group
Current assignee: Yongdinning Group; Onduline SA
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-03-23
Anticipated expiration: 2030-05-26
Also published as: TR2021008333U5

Abstract

The utility model relates to a roof below sheet that constitutes by corrugated pitch impregnated cellulose fiber sheet, roof below sheet is quadrilateral, have two relative and parallel long limits and two relative and parallel broadsides, the ripple is repeated pattern, this pattern comprises three to five continuous parallel wave forms and a flat region, wave form and flat region are on a parallel with long limit and extend, roof below sheet includes along and be on a parallel with at least one protrusion line that each in two broadsides arranged, protrusion line is formed to make and can cooperate their protrusion line together when the broadside of two roof below sheets overlaps, flat region's width is between 8cm and 30 cm. The utility model also discloses a roof structure of the building of including aforementioned roof below sheet.

Description

Sheet material under roof and roof structure of building

Technical Field

The present invention relates to an under-roof sheet composed of a corrugated pitch-impregnated cellulose fiber sheet, and also relates to a roof structure of a building including the under-roof sheet.

Background

Typically, corrugated pitch-impregnated cellulosic fiber sheets used as roofing underlayments for building or renovating building roof structures are completely corrugated along the width of the sheet. Including the provision of additional insulation and sealing layers and ventilation structures, typically made of tiles, beneath the upper layers of the roof.

When building or renovating a roof structure, roofers are required to walk on the roof, particularly on the layered sheets under the roof. This is uncomfortable for roofers, may lead to risks such as ankle sprains, and may also damage the sheet material below the roof.

There is a need for an under roof sheet that can be easily stepped on.

It has been proposed to place temporary slabs or battens reasonably perpendicular to the waves and walk on them, but this is cumbersome and can also be dangerous as they are not fixed.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide an under roof sheet comprising a flat area on which a roof worker can easily step or kneel while still having good strength.

According to the present invention, the above object is achieved by providing an under roof sheet composed of a corrugated pitch-impregnated cellulose fiber sheet, the under roof sheet being in the shape of a quadrangle having two opposite and parallel long sides and two opposite and parallel broad sides, the wave form being a repeating pattern consisting of three to five consecutive/adjoining parallel wave forms and a flat area, the wave forms and the flat area extending parallel to the long sides, the under roof sheet comprising raised lines/embossed lines arranged along and parallel to each of the two broad sides, the raised lines being shaped so as to fit the raised lines of the two under roof sheets together when the broad sides thereof overlap, and wherein the width of the flat area is 8cm to 30 cm.

In various embodiments of the present invention, the following technical means are used, which can be used alone or in any technically possible combination:

the wave form comprises a central top and two bottoms flanking the central top,

the width of the flat area is measured between the two bottoms of the two waves situated at the edge of the flat area and parallel to the broadside of the sheet under the roof,

the width of the wave is measured between the two bottoms and parallel to the broadside of the sheet under the roof,

-the sheet under the roof comprises a complete set of wave patterns,

-the sheet under the roof comprises a set of complete wave patterns and incomplete wave patterns at one broad side,

the sheet under the roof comprises a set of complete wave patterns and two patterns incomplete at the two broad sides,

the broadside of the sheet under the roof is at the bottom of the wave,

in the sheet under the roof, the patterns of the waves are all the same and all the flat areas have the same width,

in the sheet under the roof, the width of some flat areas is greater than the width of other flat areas,

in the sheet under the roof, the wave patterns are not identical, some of said wave patterns comprising a smaller number of waves than others,

in the sheet under the roof, the wave patterns are not identical, some of said wave patterns having three waves and others having four waves,

the long side is larger than the wide side, the sheet under the roof is rectangular,

long side equal to wide side, sheet under roof square,

the three to five consecutive parallel waves are thus separated from the next group/adjacent parallel wave by a distance comprised between 8cm and 30cm and corresponding to the width of the flat area,

-the wave shape is a bending wave,

-the waveform is a sine wave,

-said wave form is an oblique wave, the central top of the wave form is flat and the bottom of the wave form is flat,

the wave form is a combination of bending and oblique waves, the central top of the wave form being flat and the bottom of the wave form being curved,

the corrugations are a repeating pattern of three, four or five consecutive parallel waves and a flat area,

the corrugations are a repeating pattern of three consecutive parallel waves and a flat area,

the width of the flat area is 10cm or 15cm,

the wave form comprises a central top and two bottoms flanking the central top, and the flat area is at the same height/level as the bottoms of the wave form, so that the sheet under the roof is supported against the bottoms and the flat area when arranged on a flat surface,

the height of each wave of the sheet under the roof is between 1.5cm and 5cm,

the waves comprise a central top and two bottoms flanking said central top, and the height of each wave of the sheet under the roof, measured at the shortest between the plane defined by the top and the plane defined by the bottom, is between 1.5cm and 5cm,

each wave of sheet under the roof has a height of 2.2cm,

the waves comprise a central top and two bottoms flanking said central top, and the width of each wave of the sheet under the roof is between 4cm and 10cm,

the long side of the sheet under the roof is between 1m and 5m,

the width of the sheet under the roof is between 0.5m and 2m,

the raised line is 0.5mm to 3mm above the adjacent surface of the sheet under the roof,

the raised lines are 1.5mm higher than the adjacent surface of the sheet under the roof,

-the width of the raised lines is between 5mm and 20mm, the width being measured along the length of the sheet under the roof,

the sheet under the roof is significantly rigid,

in order to increase the (bending) strength of the sheet in the flat areas, in which embossing protuberances are arranged transversely, parallel to the broadsides, the height of the embossing protuberances in the flat areas being lower than the height of the waves,

-the height of the embossing protuberances in the flat area is between 0.5mm and 3mm,

the height of the embossing protuberances in the flat area is 1.5 mm.

The invention also relates to a roof structure of a building, comprising an under-roof sheet according to the invention, which under-roof sheet is composed of a corrugated pitch-impregnated cellulose fiber sheet, which under-roof sheet is quadrilateral in shape with two opposite and parallel long sides and two opposite and parallel broad sides, the corrugations being a repeating pattern consisting of three to five consecutive parallel waves and a flat area, the waves and the flat area extending parallel to the long sides, the under-roof sheet comprising at least one raised line arranged along each of the two broad sides and parallel to each of the two broad sides, the raised lines being shaped such that their raised lines fit together when the broad sides of the two under-roof sheets overlap, and the width of the flat area being between 8cm and 30cm, wherein the waves comprise a central top and two bottoms located to the side of the central top, the bottom of the wave form and the flat area are contained in the same virtual plane and wherein the sheet under the roof is covered by tiles which are laid on the flat support structure with the flat area and the bottom of the wave form.

In various embodiments of the roof structure of a building, the following technical means are used, which may be used alone or in any technically possible combination:

-the flat support structure is planar,

the flat support structure is a continuous surface,

-the continuous-surface flat support structure is made of insulating panels,

-the continuous surface flat support structure is made of concrete slabs or masonry elements,

the flat support structure is a joist or a purlin,

-between the sheet under the roof and the tiles, battens are arranged on the sheet under the roof.

Drawings

The invention will now be illustrated by way of example, and not by way of limitation, by the description of examples and embodiments in connection with the following figures,

FIG. 1 shows an under-roof sheet comprising a plurality of repeating patterns of four continuous waves and a flat area, the two long sides corresponding to the bottoms of the partial wave patterns and waves, and further comprising two parallel raised lines along each of the two broad sides of the under-roof sheet,

fig. 2 shows a detail of one of the two broad sides of the sheet under the roof of fig. 1, to better illustrate the two raised lines,

fig. 3 shows an under-roof sheet comprising a plurality of repeating patterns of three adjacent waves and a flat area, the two long sides corresponding to the local wave pattern and the bottom of the wave.

Detailed Description

Because the utility model discloses, the flat zone of roof below sheet provides the exclusive area of walking safely on the roof for the roof workman. These flat areas have a width that allows the feet/feet of the layer to lay flat at least when the foot/foot main extensions are oriented parallel to the long sides of the sheets under the roof. The flat region may have a width that allows the foot/base to lie flat slightly inclined relative to the length of the sheet below the roof. Furthermore, the flat area provides additional ventilation capacity below the upper layer of the roof made of tiles.

In addition, the raised lines of the broad sides of the sheet under the roof improve the tightness and make the installation of the sheet easy. In the absence of raised lines, the horizontal overlap between the broadsides should be equal to or greater than 20cm for waterproofing reasons. With one or two raised lines, the size of the horizontal overlap can be reduced to 8 cm. Furthermore, the raised lines also allow the position of the horizontal overlap to be known intuitively, the position of the sheet material no longer needs to be measured, and there is less risk of error.

The underroof sheets 1, 2 of fig. 1 and 3 are rectangular, corrugated sheets of pitch-impregnated cellulosic fibers. They comprise two opposite and parallel

long sides

3, 5 and two opposite and parallel

wide sides

4, 6.

The pattern of the first exemplary roofing underlayment sheet 1 of fig. 1 and 2 includes four waves and is associated with a flat area 8 for the sheet having alternating three patterns 11 including four waves. The pattern of the second exemplary roofing underlayment sheet 2 of fig. 3 includes three waves and is associated with a flat area 8 for the second sheet having alternating four patterns 10 including three waves.

Each wave of the

wave pattern

10, 11 is arcuate/curved. Each wave of the

pattern

10, 11 comprises a central top 9 and two bottoms 12 on the sides, between two adjacent waves inside the pattern there is a common bottom 12, and the bottoms of the waves at the edges of the pattern and at the edges of the flat areas are continuous with the two flat portions 8 (one of the flat areas is associated with the pattern and the other flat area is associated with the adjacent pattern).

The bottom 12 of the wave and the flat area 8 are included in the same plane.

At the

long sides

3, 5 the wave-shaped

pattern

10, 11 is incomplete. The

long sides

3, 5 are always located in and along the wave form and are preferably located at the bottom 12 or close to the bottom 12 of the wave form. In any event, when they are arranged on a roof, the sheets 1, 2 under the roof should be fitted with other sheets, the long sides of two adjacent sheets being overlapped horizontally in a row, and the wide sides of two adjacent sheets being overlapped in the vertical direction, which is the direction of inclination of the inclined roof. There are at least two undulations along each long side of the sub-roof sheets 1, 2 so that the two undulations mate when the long sides of the two sub-roof sheets 1, 2 overlap.

In another embodiment, the waveform pattern may include five or more waveforms.

To facilitate the installation of the sheet under the roof, all wave patterns are the same for the

long sides

3, 5 of the termination pattern and for all the covering sheets 1, 2 below.

In the first example of fig. 1 and 2, two parallel raised lines 7 are arranged parallel to each

broadside

4, 6, and in the second example of fig. 3, one parallel raised line 7 is arranged parallel to each

broadside

4, 6, the raised lines being arranged to cooperate when the

broadsides

4, 6 of the sheets 1, 2 under the roof overlap.

The flat area 8 has a width that allows at least one foot of a rooftop worker to lie flat thereon. For this purpose, the width of the flat region 8 should be at least 8 cm. The width of the knees of the roofer or the width of the knee protector may also be taken into account, since the roofer may kneel in the flat area 8 when he fixes the sheet under the roof to the structure on which he is placed.

In practice, the width of the flat area 8 is between 8cm and 30 cm.

Examples of the dimensional characteristics of two different sheets of roofing underlayment are now given.

A first sub-roofing sheet having a pattern of three undulations and a flat area, such as that shown in fig. 3, has an undulation height of about 2.2cm, a flat area width of between about 96mm to 98mm, the/each raised line width of about 15mm, a raised line height/rise of about 1.5mm, and a horizontal overlap of about 10cm between the two sheets.

A second sub-roofing sheet having a pattern of four waves and a flat area, such as shown in fig. 1 and 2, has a wave height of about 2.2cm, a flat area width of between about 144 mm and 147mm, the width of the/each raised line is about 15mm, the height/rise of the raised line is about 1.5mm, and for a horizontal overlap between two sheets of about 10 cm.

The structure on which the under roof sections of sheet are laid in overlapping rows may be the masonry or framework of the building being covered. Preferably, the structure on which the sheet under the roof is provided is a flat support structure, which is a flat continuous surface. The continuous surface may be an insulating panel such as mineral wool or expanded polystyrene. The sheet under the roof may be fixed with specific nails or screws.

The tiles may be placed directly on the sheet under the roof or, preferably, indirectly on the structure with battens secured to the sheet under the roof, with nails or screws inserted through the battens, sheet under the roof and the structure. In a particular embodiment, the wave form may comprise aligned recesses as represented in document FR 9613766, and which may receive and retain the slats.

The sheet material under the roof is preferably made of recycled paper and cardboard. A continuous mat of cellulose fibres is manufactured from a pulp slurry, which is then partially dried, possibly covered with resin and/or pigment/coating, the sheet is corrugated and embossed with raised lines, and the corrugated embossed sheet is then dried before being cut into sheets and then dipped in hot bitumen. In another embodiment, it is a corrugated continuous mat, and then the sheet is cut from the continuous mat. A machine for making corrugated wave-shaped and flat areas is shown for example in document FR 9613767.

The sub-roof sheets are typically installed on a sloping roof. The sheets under the roof are laid in rows starting from the bottom of the slope of the roof so that the

broadsides

4, 6 of the adjacent/upper row pass over/past the

broadsides

4, 6 of the lower row in the direction of the inclination of the roof.

Claims

1. An under-roof sheet consisting of a corrugated sheet of pitch-impregnated cellulose fibers, characterized in that it has the shape of a quadrangle with two opposite and parallel long sides (3, 5) and two opposite and parallel broad sides (4, 6), the corrugations being a repeating pattern (10, 11) consisting of three to five consecutive parallel waves and a flat area (8), the waves and the flat area (8) extending parallel to the long sides (3, 5), the under-roof sheet (1, 2) comprising at least one raised line (7) arranged along and parallel to each of the two broad sides (4, 6), the raised lines (7) being shaped so as to fit together their raised lines (7) when the broad sides (4, 6) of the two under-roof sheets (1, 2) overlap, and wherein the width of the flat area (8) is between 8cm and 30 cm.

2. The sheet according to claim 1, wherein the corrugations are a repeating pattern (10, 11) of three or four consecutive parallel waves and a flat area (8).

3. The sheet according to claim 1, characterized in that said corrugations are a repeating pattern (10, 11) consisting of three consecutive parallel waves and a flat area (8).

4. The sheet according to any one of claims 1 to 3, wherein the flat area (8) has a width of 10cm or 15 cm.

5. The sheet according to any one of claims 1 to 3, wherein the wave form comprises a central top (9) and two bottoms (12) flanking the central top (9), and the flat area (8) is flush with the bottoms (12) of the wave form, so that the sheet (1, 2) is supported by means of the bottoms (12) and the flat area (8) when arranged on a flat surface.

6. The sheet according to any one of claims 1 to 3, wherein each wave of the sheet (1, 2) has a height of between 1.5cm and 5 cm.

7. The sheet according to claim 6, characterized in that each wave of the sheet (1, 2) has a height of 2.2 cm.

8. The sheet according to any one of claims 1 to 3, wherein the waves comprise a central top (9) and two bottoms (12) flanking the central top (9), and wherein each wave of the sheet (1, 2) has a width of between 4cm and 10 cm.

9. The sheet according to any one of claims 1 to 3, wherein the raised lines (7) are 0.5 to 3mm higher above the adjacent surface of the sheet (1, 2) and have a width, measured along the length of the sheet (1, 2), of between 5 and 20 mm.

10. Roof structure of a building, characterized in that it comprises an under-roof sheet according to any one of claims 1 to 9, the under-roof sheet (1, 2) being composed of a corrugated sheet of pitch-impregnated cellulose fibers, the under-roof sheet (1, 2) being quadrangular in shape, having two opposite and parallel long sides (3, 5) and two opposite and parallel broad sides (4, 6), the corrugations being a repeating pattern (10, 11) consisting of three to five consecutive parallel waves and a flat area (8), the waves and flat area (8) extending parallel to the long sides (3, 5), the under-roof sheet (1, 2) comprising at least one raised line (7) arranged along and parallel to each of the two broad sides (4, 6), the raised lines (7) are shaped so as to fit together the two sheets (1, 2) when their wide sides (4, 6) overlap, the flat area (8) having a width of between 8cm and 30cm, wherein the wave shape comprises a central top (9) and two bottoms (12) flanking the central top (9), the flat area (8) and the bottoms (12) being contained in the same virtual plane, and wherein the sheets (1, 2) are covered by tiles, the sheets (1, 2) being laid on a flat support structure with the bottoms (12) and the flat area (8) of the wave shape.