SI9520002A - Ventilation strip - Google Patents

Abstract

The invention relates to a ventilation strip (10; 110) for ventilating the eaves, a ridge or an edge of a roof, with at least one section (12; 114, 116) extendable along the ventilation strip (10; 110) which can be fitted to the shape of contoured roofing panels, and a section (14; 112) which is substantially rigid along the ventilation strip (10; 110) and parallel to the first section. The extendable section (12; 114, 116) has elongated holes and/or slots (30) in mutually staggered rows transversely to the ventilation strip (10; 110) and the elongated holes and/or slots (30) in one row are separated by at least one longitudinal web (34) running along the ventilation strip (10; 110). A ventilation strip (10) for the eaves may have apertures (20) for guttering brackets (70) and in a strip (110) for ridges or edges there may be an extendable section (114, 116) on either side of the rigid section (112). The extendable section (114, 116) may be folded in a zigzag with longitudinal fold lines (122, 124, 126, 128). There may ben an air-permeable and/or waterproof material covering (134) extendable longitudinally and transversally at least in the extendable section (12).

Description

BRAAS GmbH

Air duct tape

The invention relates to an air strip for ventilation of a roof hat, roof ridge or any contact line of two roof surfaces, with at least one section which can be molded to the outline of profiled roof panels and which is extendable (extendable) in the longitudinal direction of the aeration strip, and a section parallel to the aforementioned section and substantially rigid in the longitudinal direction of the aeration strip.

Especially in the area of a roof hat, roof ridge or any contact line of two roof surfaces, as well as in the case of transverse roof rails in sloping roofs or at the connection from the roof surface, outward protruding parts of the building, such as chimneys or walls, occurs especially in heavily profiled roof panels. roofs to openings with large cross-sections. In the area of the roof hat, roof ridge or any contact line of the two roof surfaces, these vents are desirable and allow access to small animals and birds. In order to obtain the desired ventilation, which would be substantially complete, while preventing access to small animals and birds, the openings formed by the profiles of the roofing sheets should be closed with air-permeable material.

DE 83 05 481 Ul is known as the air strip for roof slats or for any joint line of two roof surfaces of a roof whose roof consists of panels. The ventilation strap has an elastically flexible support belt as a substantially rigid stretch in the longitudinal direction of the ventilation strap, by which the ventilation strap is attached to the board forming a roof ridge or any contact line of two roof surfaces. On at least one longitudinal edge, the support belt is provided with a ridge-shaped ridge-shaped edge section of elastically-fed material, whose teeth are connected by means of a bursting gap to an edge band of flexible material bridging the teeth and which fits on the upper side of the roof panels. As a ridge-shaped ridge, the edges formed form a section that is extendable in the longitudinal direction of the aeration strip.

DE 30 08 167 Al is known as an air strip with a belt-like section, which is substantially rigid in the longitudinal direction, and from which at least one side protrudes tightly against one another elastic tongues forming a longitudinal section in the longitudinal direction of the air strip.

DE 40 06 864 Cl describes a ventilation profile for a roof hat consisting of a base profile adapted for mounting between (those) edges of the roof panels, in particular a series of panels on the side of the roof located on the side of the roof, and the roof below construction, with projecting flexible fingers projecting at the top of said base profile.

Compression to fit as teeth, tongues, or fingers of the named antlers as a ridge of the contoured edges of the embodiments described above creates several millimeter wide spaces through which small animals, such as bees or wasps, can penetrate. By installing such a tape at the drop of the roof so that the forks are facing the ridge of the roof, the birds can push the individual forks of the ridge sideways and thus smack through the grate. In the opposite direction, the fork trail enters. This disadvantage is avoided according to DE 83 05 481 Ul by means of an additionally fitted edge belt made of flexible material that bridges the teeth. The fabrication of this vent tape is demanding as the edge band must be welded or glued to each of the teeth.

It is an object of the invention to create an air strip that prevents the passage of animals and consists of a belt made in one piece, which can be produced as meter goods in small work operations, expedient in a single work operation, whereby the air strip in question is marketed in the length of several meters is rolled up into a roll and can be mounted on the roof site without further pre-treatment. In addition, the ventilation tape should allow processing without waste and scrap, easy cutting to the required length directly at the place of assembly with the help of simple Foil Shears, adaptability to the given profiles and outlines, and bending with as little force as possible. When combining the above mentioned characteristics, the tape should be weatherproof and formally stable for decades. When an air strip one day appears as old material due to new construction work, it can be brought to a low-cost recovery facility at low cost.

According to the invention, the problem is solved by the fact that the extendable section is provided in the transverse direction of the aeration strip with elongated holes and / or slots arranged in mutually spaced rows and the elongated holes and / or slots of one type are separated from each other by the longitudinal directions of the aeration line longitudinal bridges.

Due to the substantially rigid section in the longitudinal direction of the air strip, the air strip has a stability which is preferred for mounting. A rigid section can be rigid, for example, as a grid, also in the transverse direction.

The underside of the profiled roofing has a longer developed length than the stroke length, and the upper side of the profiled roofing has a longer developed length than the length of the ridge roof or any contact line of the two roof surfaces. In the longitudinal direction of the airfoil, the running section allows the airfoil to be precisely and evenly adjusted to the contour of the freely profiled roofing.

Particularly good adaptability to the contours of highly profiled roofing is achieved by elongated holes or slots that are arranged substantially in the transverse direction in displaced rows in the extensible section. Arrangements in offset rows mean that the longitudinal bridges between the elongated holes or the slots of one row against these longitudinal bridges of the adjacent row are offset by a fraction of the length of the elongated holes or. slots, preferably by half length. In this way, the elongated holes in the transverse stretch are essentially shaped like a bark, whereby the original straight transverse bridges are angled each time in the middle so that the holes are shaped like a bark. It is understood that, from the very beginning, elongated holes can be designed as a large length and small width bark, with the width increasing as well as the length of the gap.

The extensible section may be designed to border directly on the rigid section, and it may also be possible to provide an intermediate section between the two sections, such as, for example, air-permeable fiber material. This is particularly advantageous if the rigid section consists of airtight material.

Preferably, a rigid section is provided with a grid. For example, it may have circular holes or rectangular holes. square holes, provided that continuous bridges are provided in the longitudinal direction of the duct tape.

Mounting of the air strip intended for a roof stroke is facilitated if it has openings through the gutter brackets arranged in a linear arrangement in the area between the extensible and rigid sections. The openings through them may be designed as elongated holes with dimensions corresponding to the cross sections of the girder supports. This gives the possibility of insertion of the gutter brackets in almost every place along the cap without damaging the properties of the ventilation strap. If the gutter holder hits the jumper, the gutter can be stopped without a second thought.

In the area of the roof cap, the vent tape, usually facing the stroke, is placed on the cap panel, the upper side of which runs essentially parallel to the roof surface. After installing the airframe, roof rails, as well as the drop bar, as appropriate, the air strip on the front lower edge of the airframe is folded perpendicularly along the front of the rails to the underside of the roof. When the roof is laid, the extensible section of the air duct protruding above the slats is folded into the stroke as appropriate and molded to the underside of the roof.

Preferably, in the case of an air strip designed for roof slats or any contact line of two roof surfaces, one extensible section is provided on each side of the rigid section. Such air duct tape can be fitted symmetrically to the ridge strip or the contact line of the two roof surfaces.

In order not to bend the air strip particularly at the roof ridge or any contact line of the two roof surfaces in the rigid section, rigid reinforcement may be provided in this section. This rigid reinforcement may be located below or above the air strip and an associated belt of, for example, hard PVC. If ventilation is desired in a rigid section, the belt may be provided with vents.

As a stiffening reinforcement, it may also be provided at the edge of a rigid section of wire or the like. Rigid reinforcement from a longitudinal direction of the duct tape of rigid material may at the same time prevent stretching of the strap in that direction, so that a duct tape equipped with such rigid reinforcement can be made over its entire width from the longitudinally stretched material, in particular of the so-called. expanded metals (metal nets). In this case, the rigid area is limited by rigid reinforcement.

Bending of the air strip in a straight line is facilitated if at least one predefined folding line is provided in the rigid section and / or at the border with it.

If it is intended to use an air strip in the area of the cap where less than the three laths described above are foreseen so that the result is a shorter distance between the lining of the cap and the far upper edge of the laths, a suitably wider section of the air lane may be placed under the laths. Therefore, it is preferable that, at intervals corresponding to the thickness of the battens, more are provided in the longitudinal direction of the folding lines which are parallel to one another in parallel.

A predetermined folding line may be formed by a series of holes, preferably elongated holes, which may also be designed as through holes for gutter beams. In other embodiments, the pre-folding line may be made as belts of material of reduced flexural strength, as belts of material of reduced thickness, or also as joints, such as hinge joints.

The width of the stretch section depends on the height difference of the contour to be offset. In order to avoid excessive projection of the air strip according to the invention, for example when used in a stroke, roof ridge or any joint line of two roof surfaces, it is recommended that the air strip in the extensible section be zigzagly folded along the folding lines running in the longitudinal direction of the air strip. In the delivered state, the extensible section, like the accordion bellows, is then folded over one another several times and can be extended transversely to the folding lines as well as extended in the longitudinal direction to accommodate the highly pronounced outline. Depending on the height difference of the outline to be covered, a zigzag fold may be made of three or more layers above each other.

The intrusion of very small animals or snowflakes is prevented if it is at least in the stretchable section or. in stretchable sections, an overlapping of air-permeable material, with longitudinal and transverse directions, with very small openings such as fine knit or fiber, is provided. Preferably, the overlay is connected to the air duct only at its edges extending in the longitudinal direction, so that the expansion is distributed over the entire width of the overlap. The overlap can be guided around the extending section in the edge region and glued with the latter. In this way, it overlaps the permanent smallest surface between the edge region and the rigid section so that the zigzag fold of the air strip is not visible from the outside.

Rainwater cannot penetrate through the duct tape if it is at least in a stretchable section. in the stretching sections, the overlapping of the water-tight material, which is longitudinally and transversely, is provided.

An especially easy option is to release the permeable material so that it is impermeable to water. This can be done, for example, by a layer in which the micropores are so that it is impermeable to water and permeable to air.

Particularly good sealing of the duct tape is achieved if there is a belt in the longitudinal direction of the extensible self-adhesive material on the edge of the duct tape facing the roof panels.

This kind of ventilation tape can also be used to cover openings along transverse roof rails in sloping roofs or to attach parts of a building projecting from a roof surface such as chimneys or walls.

The ventilation strip may be made of plastic or metal, in particular aluminum, or of a combination of plastic and metal, and is free from either one-sided or double-sided on each side equally or in different colors.

In addition to the fact that the air strip according to the invention is installed at the ventilated drop connection, at the roof ridge or at any contact line of the two roof surfaces, the proposed embodiment provides further possibilities of use, e.g. as an angle for façade rendering or as an air connection for wall coverings, e.g. as in window sills, at the base of the house and in the shrouds.

The accompanying drawings show two preferred embodiments of the invention, which are explained below.

In the drawings, FIG. 1 is a section of an aeration strip according to the invention for the stroke, in the plan, FIG. 2 is an air strip of FIG. 1 in the integrated state at the stroke, in cross section, FIG. 3 shows an aerial strip for a ridge or any other contact line of two cross-sectional surfaces, and FIG. 4 is an air strip of FIG. 3 in the built-in condition at the ridge, in cross section.

In FIG. In Fig. 1, the section is presented as a single piece of a 160 mm wide and 1 mm thick aluminum air strip 10 with a 60 mm stretch section 12 and 100 mm wide, a rigid section 14 in the longitudinal and transverse directions. The stretch section 12 is delimited from the rigid section 14 with first bending line 18. The first bending line 18 is pre-cast with 6 mm wide and 30 mm long through the openings 20 for the gutter brackets using elongated holes. In the rigid section 14, a second bending line 22 and a third bending line 24 are provided, extending longitudinally, forming 5 mm wide and 25 mm long elongated holes 26 and. 28. The extensible section 12 has transversely extending, 1 mm wide and 20 mm long elongate holes 30 with 1 mm wide transverse bridges 32 and 1.5 mm wide longitudinal bridges 34 extending in rows, with the said species displaced by half the length of the holes mentioned. In rigid section 14, there are provided square and longitudinally arranged square holes 36 with 4 mm longitudinally and transversely longitudinally extending 2 mm wide longitudinal lattice bridges 38 and 2 mm wide transverse lattice bridges 40 transverse in direction. The rigid section 14 is bounded at its outer edge 42 by a non-elongated, 6 mm wide edge section 44 and divided by bending lines 18, 22, 24 into three longitudinal subsections 46, 48, 50.

In FIG. 2 shows an aeration strip 10 of FIG. 1 with a extendable section 12 and in a longitudinal and transverse direction a rigid section 14 in a condition when the strap is mounted in the drop structure 52. A third sub-section 50 of the rigid section 14 of the air strip 10 is attached to the drop end 54 of the rafters with the drop formwork 56 and the drop plate 58. above which are attached the basic tension line 60, the counter 62, the roof lath 64 and the lath 66. The basic tense line 60, the lattice 62, the roof lane 64 and the lath 66 are covered on the side of the cap by the first sub-section 46 and the second sub-section 48 rigid sections 14 of the air strip 10, which for this purpose are bent 90 ° by the third bending line 24 toward the roof panel 68. The first bending line 18 formed through the openings 20 extends directly above and along the lath 66. A groove 70 is inserted through one of these through openings 20. The extensible section 12, which directly protrudes from the through openings 20 of the first bending line 18 made, is closely aligned to the outline of the underside of the roof panels 68 covering the drop structure 52 by a longitudinal passage.

FIG. 3 shows a 280 mm wide air strip 110 for the ridge or any other contact line of two cross-sectional areas in the left half of FIG. 3 in delivery condition and on the right half in unfolded condition. The air strip 110 is made of 0.7 mm thick stretched aluminum strip. On both sides, 100 mm wide, in the longitudinal direction of the rigid section 112, extending sections 114, 116. Left and right are arranged in the longitudinal and transverse directions, respectively. The rigid reinforcement 118, 120 from the rigid strip are arranged on the edges of the rigid section in the longitudinal direction. PVC. Below the rigid reinforcements 118, 120, the extending sections 114, 116 are folded folded in two longitudinally in the direction of the aeration strip of the bending lines 122, 124, 126, 128 zigzag.

The retractable section 114 shown in the delivery state is folded back 180 ° along the first flexural line 122 at a width of 35 mm relative to the longitudinal axis of the air strip and extends 180 degrees further along the second flexural line 124 at a width of 65 mm. again towards the left outer edge 130 of the ventilation strip 110. While the extending portion 114 is flat on the adjacent edges of the roof panels, it may be folded flat due to the zigzag folding as shown in the right half of FIG. 3, the right outer edge 132 of the extensible section 116 for adjusting to the water-flowing portion of the heavily profiled roofing sheet is bent perpendicularly to the plane of the air strip 110. The material is stretched longitudinally to accommodate the greater contour length. Between the third bending line 126 and the fourth bending line 128 and the right outer edge 132, the cross-sectional material occupies an oblique position. The area of the extendable section 116, which is close to the right outer edge 132, can be mapped to the roof panel to be obscured, parallel to its surface.

The aeration strip 110 shown in FIG. 3, is equipped with a cover 134 of water tight, impregnated, air-permeable fine knit fabric throughout its width. This overlay 134 is positioned around the outer edges 130, 132 and in the edge regions glued to the extendable sections 114, 116. Due to its elasticity, the overlay 134 continuously occupies the smallest surface between the rigid section 112 and the outer edges 130, 132. or on any other contact line of the two roof surfaces, gives a smooth appearance in appearance from the outside.

In FIG. 4 is an air strip 110 of FIG. 3 is presented in the built-in condition in cross section on the ridge roof. The rigid area lies on the ridge strip 136 and is covered by ridge 138. The ridge strip 136 is secured by means of its holder 140 to two rafters 142, 144 which lead to the caps on each side of the roof. The rafters 142, 144 carry roof rails 146, 148, on which are profiled slabs 150, 152 of the roof. The section in FIG. 4 is taken along the water part of the panels 150, 152. The extensible sections 114, 116 of the air strip 110 are shaped along the contour of the surface of the panels 150,

152 roofing. The rigid reinforcements 118, 120 prevent the bending of the rigid section 112 in the area of watercourses of the roof panels.

Claims (14)

Patent claims A ventilation strip (10; 110) for aeration of a roof hat, roof ridge or any contact line of two roof surfaces, with at least one section (12; 114; 116) which can be molded to the outline of profiled roofing panels and which is extensible in the longitudinal direction of the aeration strip (10; 110) and a section (14; 112) parallel to the aforementioned section and substantially rigid in the longitudinal direction of the aeration band (10; 110), characterized in that the extensible section (12; 114; 116) provided with transverse directions of the air strip (10; 110) extending elongated holes and / or slots (30) in spaced rows, and the elongated holes and / or slots (30) of each type being separated from each other with at least one longitudinal bridge (34) running along the longitudinal directions of the air strip (10; 110). Ventilation strip according to claim 1, characterized in that a grate is provided in the rigid section (14; 112). Ventilation strip according to claim 1 or 2, characterized in that it is designed as a vent strip (10) for a roof drop and has through openings (20) for gutter supports (70) arranged in a linear arrangement in the area between extendable section (12) and rigid section (14). Ventilation strip according to one of Claims 1 or 2, characterized in that it is designed as a ventilation strip (110) for roof ridges or any contact line of two roof surfaces and has one extensible section on each side of the rigid section (112). (114,116). Ventilation strip according to one of Claims 1 to 4, characterized in that at least one rigid reinforcement (118,120) is provided in the rigid section (112). Ventilation strip according to one of Claims 1 to 5, characterized in that at least one pre-bending line (18, 20, 22, 24; 122,124,126,128) is provided in the rigid section (14; 112) or adjacent thereto; Ventilation strap according to claim 6, characterized in that one preformed bending line (18, 22, 24) forms a series of holes with elongated holes (26, 28) arranged in the longitudinal direction of the ventilation strap (10). Ventilation tape according to claim 6, characterized in that a material of reduced flexural strength is provided in the area of the pre-bending line. Ventilation tape according to claim 6, characterized in that a reduced thickness material is provided in the area of the pre-bending line. Ventilation strip according to claim 6, characterized in that a joint is provided in the area of the pre-bending line. Ventilation strip according to one of Claims 1 to 10, characterized in that it is in the extendable section (114, 116) by means of bending lines (122, 124, 126, 128) extending in the longitudinal direction of the ventilation strip (110) , zigzag folded. Ventilation strip according to one of Claims 1 to 11, characterized in that it is at least in the extendable section (12) or. in the stretchable sections (114, 116) there is provided a cover (134) from the longitudinally and transversely extensible air-permeable material with very small openings such as fine knit or fiber. Ventilation strip according to one of Claims 1 to 12, characterized in that it is at least in the extendable section (12) or. in the stretchable sections (114, 116), an overlapping (134) of water-tight material extending in the longitudinal and transverse directions. Ventilation tape according to one of Claims 1 to 13, characterized in that a band of longitudinally extensible self-adhesive material is provided at the edge of the ventilation strip (10; 110) on the side facing the roof panel (68; 150,152). .