EP0184793A2 - Dispositif pour la réservation de la section d'aération d'un toit double peau, procédé pour la réhabilitation d'un toit double peau et coin de guidage pour l'exécution du procédé - Google Patents
Dispositif pour la réservation de la section d'aération d'un toit double peau, procédé pour la réhabilitation d'un toit double peau et coin de guidage pour l'exécution du procédé Download PDFInfo
- Publication number
- EP0184793A2 EP0184793A2 EP85115558A EP85115558A EP0184793A2 EP 0184793 A2 EP0184793 A2 EP 0184793A2 EP 85115558 A EP85115558 A EP 85115558A EP 85115558 A EP85115558 A EP 85115558A EP 0184793 A2 EP0184793 A2 EP 0184793A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- elements
- roof
- articulated
- rafters
- openings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/17—Ventilation of roof coverings not otherwise provided for
- E04D13/172—Roof insulating material with provisions for or being arranged for permitting ventilation of the roof covering
Definitions
- the invention relates to a device for keeping the ventilation cross section of a double-skin roof free, a method for renovating a double-skin roof and a guide wedge for carrying out the method according to the preamble of claims 1, 15 and 19.
- a pitched roof generally has a double-shell structure in the area of a converted attic.
- the outer shell usually consists of the roof covering and a formwork arranged underneath with a covering made of cardboard, while the inner shell has a thermal insulation layer with an internal vapor barrier and a plasterboard shell on the room side.
- a free ventilation cross section must be formed between the two roof shells, the height of which depends on the roof pitch, but should not be less than a minimum height of 5 cm.
- a device for keeping the ventilation cross section free is already known between the top of a thermal insulation arranged between the rafters of a removed double-skin roof and the underside of the outer roof shell in the form of flat components which are attached to the two lateral edge sections L are angled in a shape. With these angled edge sections, the known components rest on two adjacent rafters, whereby they are attached to them, while their flat main section connects the rafters to each other at about half their height, so that the upper area between the rafters is kept free as a ventilation cross section.
- These essentially flat components can consist, for example, of plastic or a wire mesh.
- the ventilation cross-section freely holding devices have to be installed during the construction of the roof, they do not whereas subsequently to Dachsanierun g can be incorporated, without the upper roof shell to decrease.
- the invention has for its object to develop a device according to the preamble of claim 1 in such a way that its individual elements can be installed both in the manufacture of a double-skin roof and subsequently for its renovation.
- a method for the renaming of a removed double-skin roof and a guide wedge for carrying out the method are to be specified.
- the openings in the lower surface of the elements are closed with a smooth, vapor-permeable cover.
- This design reliably prevents the thermal insulation material from entering the element through the opening in its underside. Even if the thermal insulation layer, as a result of a leak in the roof covering, would endeavor to swell due to the ingress of moisture, this would be prevented by the covered underside of the element, while at the same time ensuring the required passage of air through the lower cover.
- the interior of the elements is advantageously divided into individual chambers by longitudinal webs running perpendicular to the cover surfaces and parallel to the rafters.
- This configuration on the one hand increases the stability of the element, while also reducing the formation of eddies in the element by the flowing air flow and promoting the formation of a purely laminar air flow.
- the chambers advantageously have essentially the same cross sections. Two longitudinal webs can be arranged in each element.
- complementary parts of a snap lock are arranged on both sides of the elements in such a way that with the aid of these parts adjacent elements with abutting end faces can be connected to one another in a force-locking manner. Since a continuous free ventilation cross-section, extending from the eaves to the pointed floor, must be formed with the aid of several elements in order to ensure adequate ventilation of the thermal insulation layer, this measure allows the elements to be reliably aligned with one another.
- the parts of the snap lock are expediently arranged on at least one of the central longitudinal webs, as a result of which the risk of an element being jammed when being fed into the space between the two roof shells is reduced.
- the parts of the snap lock expediently consist of a pivotable angle piece and a flat web which is engaged by this. This makes the connection quick and easy.
- the elements of the device according to the invention expediently consist of plastic.
- the material is chosen so that the elements have the required rigidity.
- the cover for the openings in the lower covering surface of the elements is advantageously made of a glass fleece or a P olyestervlies.
- the height of the element according to the invention is expediently 50 mm, which ensures a sufficient ventilation cross section for all roof inclinations.
- the width and the length of the element are expediently 550 mm and 400 mm. These dimensions are matched to the rafter distances that are usually encountered and to the transport problems of the elements, but other dimensions with regard to length and width are also possible.
- articulated straps are arranged at the ends of the elements and connect articulated elements to one another. This enables the elements to be transported to the place of use as a collapsible package.
- the method according to the invention for the renovation of a double-skin roof that has been removed provides that several elements are inserted one after the other with the end faces lying against one another into the space between the top of the thermal insulation and the underside of the outer roof shell until one in each rafter field of the roof from the eaves to the pointed floor continuous free ventilation cross-section is made.
- this method can be carried out without dismantling the outer roof shell, which makes it simple and cost-effective to carry out.
- the elements are expediently pushed into the intermediate space from the pointed floor of the roof.
- an insertion-facilitating guide wedge is fastened in the front end of the first element in each rafter field, which is folded after the insertion of all elements into the relevant rafter field and is pulled out to the rear.
- the first element in each rafters field is expediently advanced by means of a collapsible guide rod, which has at its front end a cross member which is supported on the guide wedge having.
- the guide rod must therefore be designed to be collapsible because there is generally not much space available in the area of the attic above the loft.
- the guide rod is designed in the opened state so that it can support the installation process effectively mechanically.
- a guide key is also provided for performing the method, of the two through a centrally arrange - having tes joint interconnected outstanding in the installed state from the front end of the first member and a wedge forming expanding jaws, the free ends at the free ends of one of two articulated parts formed articulated support are articulated in such a way that they are pressed against the inside of the front end of the element in the extended position of the articulated support, while they can be brought about in their articulated position by a cord pull attached to and leading to the rear end of the element is pivoted against each other, whereby their guide wedge can be released and pulled out of the element.
- This guide wedge facilitates the insertion of the elements by pushing down the excessive thermal insulation material during feed.
- the elements are expediently inserted from the pointed floor of a roof, in which only a limited space is available, into the space between the two shells, they expediently have a relatively short length. This has an additional advantage that the individual elements are easy to transport.
- the length of the respective arrangement of ventilation elements extending from the eaves to the pointed floor can be changed as desired simply by the number of individual elements joined together.
- a change in the element width can only be necessary if the dimension specified in this regard must be considered too large due to the local conditions.
- a suitable mechanical connection in the area of the overlapping profile sections can then be used to easily produce an entire individual element again. In this way, the element width can be reduced to the desired level without any special effort.
- the arrangement of the glass or polyester fleece on the underside of the element ensures that, in addition to the purely mechanical requirement, the diffusion-equivalent air layer thickness of the thermal insulation in the interface with the free ventilation cross section is not increased or is not significantly increased. This is of crucial importance for the desired renovation success.
- the roof structure shown in Fig. 2 consists of an outer shell 1 and an inner shell 2, between which an air space 3 is formed.
- the outer shell 1 comprises a roof covering 4 with an underlying battens 5, a counter battens 6 and a formwork 7 with a cardboard covering.
- the inner shell 2 consists of the thermal insulation layer 8, which is arranged between the rafters 9, a vapor barrier 10 arranged underneath, and a further battens 11, to which a plasterboard shell 12 is attached.
- the element 13a shown in FIG. 1 consists of an essentially rigid, cuboid hollow box 13, the two opposite end faces 14 and 15 of which, like the two cover surfaces, have large openings 16.
- the side surfaces 17 of the hollow box 13 facing the rafters 9 have further openings 18.
- the hollow box 13 is divided into two chambers 20, which are of the same size, by two vertical, I-shaped longitudinal webs 19.
- the bottom opening of the element 13a is closed by a smooth, vapor-permeable cover.
- FIGS. 2 and 3 show the state in which the roof shown is provided for its renovation with elements 13a which are inserted between the formwork 7 provided with the covering and the thermal insulation layer 8 in order to form a sufficient ventilation cross section.
- the snap closure 21 shown in FIGS. 4 and 5 consists of an angle piece 22 which is pivotably mounted on the front end section of one element 13a and a flat web 23 which is arranged on the rear end section of another element 13a and which the angle piece 22 engages behind.
- the two parts 22 and 23 of the snap lock are attached to aligned I-shaped longitudinal webs 19.
- the one in Fi g . 6 shown demountable guide wedge 24 contains two spreading jaws 26 which are connected to one another via a centrally arranged joint 25 and which can be stiffened by two articulated parts 27, which are also articulated at 28, in such a way that the spreading jaws against the upper and the lower edge section of the element 13a are pressed.
- the element 13a provided with the guide wedge can be easily inserted between the two shells 1 and 2 of a two-shell roof structure.
- the parts 27 are bent backwards by means of a cord 29, whereby the expansion jaws 26 are pivoted towards one another so that the guide wedge 24 can be pulled out of the element.
- the guide rod 30 shown in Fig. 7 can be used to move the elements 13a in the space between the . Push trays 1 and 2 forward.
- the guide rod is provided with a front cross member 31. Since there is usually only a limited space available for handling the guide rod on the pointed base from which the elements are introduced, it can be folded up at joints 32, it being provided with suitable means, not shown, for stiffening it in the stretched state.
- FIG. 8 shows a transport arrangement made up of a number of elements 13a which are connected at the end faces by means of articulated straps 33 made of plastic.
- the elements 13a can thus be transported to the place of use as a collapsible package, which further simplifies roof renovation.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85115558T ATE51667T1 (de) | 1984-12-13 | 1985-12-06 | Vorrichtung zum freihalten des lueftungsquerschnitts eines zweischaligen dachs, verfahren zum sanieren eines zweischaligen dachs und fuehrungskeil zur durchfuehrung des verfahrens. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3445508A DE3445508C1 (de) | 1984-12-13 | 1984-12-13 | Vorrichtung zum Freihalten des Lueftungsquerschnitts eines zweischaligen Dachs,Verfahren zum Sanieren eines zweischaligen Dachs und Fuehrungskeil zur Durchfuehrung des Verfahrens |
| DE3445508 | 1984-12-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0184793A2 true EP0184793A2 (fr) | 1986-06-18 |
| EP0184793A3 EP0184793A3 (en) | 1987-01-14 |
| EP0184793B1 EP0184793B1 (fr) | 1990-04-04 |
Family
ID=6252696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85115558A Expired - Lifetime EP0184793B1 (fr) | 1984-12-13 | 1985-12-06 | Dispositif pour la réservation de la section d'aération d'un toit double peau, procédé pour la réhabilitation d'un toit double peau et coin de guidage pour l'exécution du procédé |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0184793B1 (fr) |
| AT (1) | ATE51667T1 (fr) |
| DE (1) | DE3445508C1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2131620A (en) * | 1937-06-10 | 1938-09-27 | Garrison | Insulating structure |
| GB1360877A (en) * | 1972-10-19 | 1974-07-24 | Keeble H | Roof and ceiling constructions |
| US4292777A (en) * | 1978-10-10 | 1981-10-06 | Story Edward R | Insulation-confining panel and method of using the same |
| GB2075565B (en) * | 1980-04-16 | 1984-05-02 | Hedgecock John Anthony | Ventilating insulated roof spaces |
| DE3102837A1 (de) * | 1981-01-29 | 1982-09-09 | Jürgen 4458 Georgsdorf Lucas | Werkzeug zum nachtraeglichen einbringen von daemmstoffmatten in hohlraeume von gebaeuden |
| DE3406015C2 (de) * | 1984-02-20 | 1986-06-19 | Fa.Hans Klöber, 5828 Ennepetal | Auflagerprofil für die freien Ränder von Dacheindeckungsplatten der traufseitigen Plattenreihe |
-
1984
- 1984-12-13 DE DE3445508A patent/DE3445508C1/de not_active Expired
-
1985
- 1985-12-06 AT AT85115558T patent/ATE51667T1/de not_active IP Right Cessation
- 1985-12-06 EP EP85115558A patent/EP0184793B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE51667T1 (de) | 1990-04-15 |
| EP0184793B1 (fr) | 1990-04-04 |
| DE3445508C1 (de) | 1986-08-28 |
| EP0184793A3 (en) | 1987-01-14 |
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