DK172299B1

DK172299B1 - Ventilating eaves

Info

Publication number: DK172299B1
Application number: DK28096A
Authority: DK
Inventors: Peter Soelbeck
Original assignee: Polysheet As
Priority date: 1996-03-11
Filing date: 1996-03-11
Publication date: 1998-03-02
Also published as: EP0886707A1; NO984169D0; WO1997034062A1; DK28096A; DE69717083D1; EP0886707B1; NO310780B1; AU2022097A; DE69717083T2; NO984169L

Description

DK 172299 B1DK 172299 B1

Opfindelsen angår et ventilerende tagfodstykke omfattende et langstrakt udluftningselement med tværgående luftpassager til montering mellem overkanten af et sternbrædt og den overliggende tagbeklædning og i 5 forbindelse hermed et understøtningselement for en undertagsfolie og et vandafledningselement, hvor nævnte understøtnings- og vandafledningselementer har form af pladeprofiler, som i hele udluftningselementets længde regnes ud fra modstående sider af dette, som i en 10 brugsstilling af tagfodstykket under henholdsvis mod tagkonstruktion inder og mod en på sternbrædtets yderside monteret tagrende.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a venting roof footpiece comprising an elongated vent element with transverse air passages for mounting between the upper edge of a stern board and the overlying roof covering, and in connection therewith a support element for a roof foil and a water drain element, wherein said support and water drain elements have molding elements. the entire length of the vent element is calculated from opposite sides thereof, which in a position of use of the roof foot piece under respectively roof construction and against a gutter mounted on the outside of the stern board.

Konventionel udførelse af en tagfodsafslutning i forbindelse med tagudhæng foretages som oftest ved 15 håndværksmæssig tilvirkning, hvorved et fodblik af metalplade fastgøres til overkanten af sternbrædt efter montering af rendejern i nedfræsninger i tagkrydsfiner og nederste lægte i tagkonstruktionen. Tilvejebringelse af en nødvendig ventilationsspalte kræver kantstilling 20 og opklodsning af nederste lægte, og ventilationsspalten medfører en betydelig risiko for indtrængning af fygesne og insekter, mus og fugle i tagrum.Conventional execution of a roof foot finish in connection with roof overhangs is usually done by 15 craftsmanship, whereby a metal sheet foot attach to the top of the stern board after mounting the gutter in the cutters in the roof plywood and the lower leg in the roof structure. Providing a necessary ventilation gap requires edge position 20 and the bottom lobe clean-up, and the ventilation gap carries a significant risk of penetration of the figs and insects, mice and birds into the roof space.

Ved en fra GB-patentansøgning nr. 2.131.845 kendt tagfodsafslutning af den ovenfor angivne art er disse 25 problemer søgt afhjulpet ved fastgørelse af et U-formet udluftningsprofilelement af aluminium med tværgående luftpassager til oversiden af sternbrædtet og indskydning af et fodblik af plastmateriale omfattende en indvendig undertagsbæresektion og en udvendig vandaf led-30 ningssektion over den mod tagkonstruktionens indre vendende bagkant af udluftningselementets overvæg. Omend denne kendte løsning indebærer væsentlige fordele i forhold til den ovennævnte konventionelle udførelse af tagfodskonstruktioner, kompliceres den af, at udluft-35 ningselementet og fodblikket må samles manuelt inden DK 172299 B1 2 monteringen, lige som monteringen vanskeliggøres af, at selve det U-formede udluftningselement må fastgøres til sternbrædtets overside ved sømning. For at undgå, at den overliggende tagbeklædning kommer til at hvile direkte 5 på fodblikket, og den deraf følgende risiko for belastning af tagrenden foreskrives tillige en opklodsning af tagbeklædningen ved hjælp af afstandsstykker i forbindelse med samlingen mellem udluftningselementet og fodblikket.In a prior art roof foot closure of the above-mentioned type, these 25 problems have been sought to be remedied by attaching an aluminum U-shaped vent profile element with transverse air passages to the upper surface of the stern board and inserting a plastic sheet footing comprising a an inner roof support section and an exterior water conduit section over the rear edge of the roof element facing the interior of the roof structure. Although this known solution offers significant advantages over the aforementioned conventional design of roof foot structures, it is complicated by the fact that the vent element and the footplate must be assembled manually prior to the installation, just as the installation is made difficult by the fact that the U-shaped itself the vent element must be attached to the top of the stern board when sewing. In order to prevent the overlying roof covering from resting directly on the footplate and the consequent risk of loading the roof gutter, a roofing of the roofing is also provided by means of spacers in connection with the joint between the vent element and the footplate.

10 Ved en anden tagfodsudformning kendt fra DE10 In another roof foot shape known from DE

patentskrift nr. 34 31 207 er et udluftningselement, som kan være udført i plastmateriale i integreret forbindelse med en vandnæse til afledning af vand til tagrenden ligeledes fastgjort ved sømning direkte til 15 overkanten af et sternbrædt, medens der til understøtning af et undertag, som her forudsættes at være udført af tagpap, benyttes et særskilt, stift bæreelement .U.S. Patent No. 34,31,207 is a vent element which may be made of plastic material integrally with a water nose to divert water to the gutter, also attached by seaming directly to the upper edge of a stern board, while supporting a lower roof as herein. assuming that it is made of roofing paper, a separate rigid support element is used.

I forhold til denne kendte teknik tilsigtes det ved 20 opfindelsen at tilvejebringe et ventilerende tagfodstykke, som i fuldt omfang afhjælper de fremstillings- og brugsmæssige ulemper ved konventionelle tagfodsafslutninger uden de komplikationer, som er forbundet med de nævnte kendte løsninger.In accordance with this prior art, the invention aims to provide a ventilating roof foot piece which fully alleviates the manufacturing and use disadvantages of conventional roof foot finishes without the complications associated with said known solutions.

25 Til opnåelse heraf er et ventilerende tagfodstykke af den indledningsvis angivne art ifølge opfindelsen ejendommeligt ved, at tagfodstykket er udført som en samlet enhed i støbt plastmateriale med udluftningselementet i integreret forbindelse med nævnte under-30 støtnings- og vandafledningselementer, og at der mellem udluftningselementet og på dettes ene side understøtningselementet og på dets anden side vandafledningselementet er tilvejebragt integrerede ledforbindelser for tilpasning af placeringerne af understøtnings- og DK 172299 B1 3 vandafledningselementerne til den foreliggende tagkonstruktion .In order to achieve this, a venting roof footer of the kind initially mentioned according to the invention is characterized in that the roof footpiece is formed as a single unit in molded plastic material with the vent element in integral connection with said support and water drain element and that between the vent member and on its one side the support element and on its other side the water drain element is provided with integrated link connections for adapting the locations of the support and the water drain elements to the present roof structure.

Herigennem opnås, at der med et enkelt tagfodstykke med et udluftningselement i integreret forbindelse med 5 både et undertagsunderstøtningselement og et vandafledningselement kan tilvejebringes såvel en udluftning med tilfredsstillende sikkerhed mod indtrængning af fygesne, insekter og smådyr som en forbedret understøtning af en undertagsfolie til forhindring af sækdannelser og heraf 10 følgende vandansamlinger og en til den foreliggende tagrendemontering tilpasset vandafledning, samtidigt med at ét og samme tagfodstykke som følge af de integrerede ledforbindelser nemt kan tilpasses i praksis forekommende tagkonstruktioner, herunder forskellige 15 taghældninger.Hereby it is achieved that with a single roof foot piece with a vent element in integral connection with both a roof support element and a water drain element, both a vent can be provided with satisfactory security against penetration of the pigeons, insects and small animals as well as an improved support of a roofing foil to prevent roofing foil. and 10 of the following water accumulations and a water drain adapted for the present gutter assembly, while at the same time, one and the same roof footpiece can easily be adapted to practical roof structures, including different roof slopes due to the integrated joint connections.

Fordelagtige udførelsesformer for og videreudviklinger af tagfodstykket ifølge opfindelsen fremgår af underkravene.Advantageous embodiments of and further developments of the roof foot piece according to the invention appear from the subclaims.

Opfindelsen vil i det følgende blive forklaret 20 nærmere ved hjælp af eksempler på udførelsesformer under henvisning til tegningen, på hvilken fig. 1 viser et snit gennem en del af en tagfod-konstruktion udført under anvendelse af en udførelses-form for et tagfodstykke ifølge opfindelsen, 25 fig. 2 og 3 viser tagfodstykket i fig. 1 set henholdsvis skråt oppefra og skråt nedefra og fig. 4 tagfodstykket set fra den ene ende i den stilling, hvori det fremstilles.The invention will now be explained in more detail by way of examples of embodiments with reference to the drawing, in which: 1 is a sectional view of a portion of a eaves construction constructed using an embodiment of an eaves according to the invention; FIG. 2 and 3 show the roof foot piece of FIG. 1 is a top view and an oblique bottom view, respectively; FIG. 4 shows the roof foot piece from one end in the position in which it is manufactured.

Ved den i fig. 1 viste tagfodsafslutning for et 30 skråtag med 30° hældning og tagudhæng er der til undersiden af et spær 1 fastgjort udhængsbeklædnings-brædder 2 og til enden af spæret et sternbrædt 3, som med sin overkant dækker den til spæret l's overside fastgjorte nederste lægte 4 i tagkonstruktionen.In the embodiment shown in FIG. 1, a 30 foot sloping roof with a 30 ° slope and a roof overhang is provided with overhanging boards 2 on the underside of a rafter 1 and a stern board 3 at the end of the rafter which, with its upper edge, covers the lower leg 4 attached to the upper side of the rafter 1. roof structure.

DK 172299 B1 4DK 172299 B1 4

Ovenpå sternbrættet 3 er lagt et rendejern 5, som i det viste eksempel er fastgjort til lægten 4, og som bærer en langs ydersiden af sternbrættet 3 forløbende tagrende 6.On top of the stern board 3 is laid a gutter 5, which in the example shown is attached to the stern 4, and which carries a gutter 6 extending along the outside of the stern board 3.

5 Langs oversiden af spæret 1 er fastgjort en afstandsliste 7, som fastholder en af armeret plastfolie fremstillet undertagsdug 8, og til hvis overside tagkonstruktionens øvrige lægter 9, som bærer den udvendige tagbeklædning 10, er fastgjort.5 Along the upper side of the rafter 1 is attached a spacing strip 7, which retains a roofing cloth 8 made of reinforced plastic foil, and to which the other legs 9 of the roof structure, bearing the outer roof covering 10, are attached.

10 Mellem oversiden af spæret 1, sternbrættet 3 og den nederste lægte 4 og den overliggende tagbeklædning 10 er anbragt et tagfodstykke 11, som generelt omfatter et udluftningselement 12 med tværgående luftpassager i form af forholdsvis korte kanaler 13 og i forbindelse hermed 15 et mod tagkonstruktionens indre udragende understøtningselement 14, som bære det nederste kantområde af undertagsdugen 8, og et mod tagrenden 6 udragende vandafledningselement 15.10 Between the upper side of the latch 1, the stern board 3 and the lower lamina 4 and the overlying roof covering 10 is arranged a roof footpiece 11, which generally comprises a vent element 12 with transverse air passages in the form of relatively short ducts 13 and in connection therewith an interior of the roof structure. projecting support member 14 which carries the lower edge region of the roofing cloth 8, and a water draining member 15 projecting against the gutter 6.

Som det mere tydeligt fremgår af fig. 2-4 er 20 tagfodstykket ifølge opfindelsen udført som en samlet enhed med udluftningselementet 12 i integreret forbindelse med både understøtningselementet 14 og vandafledningselementet 15, idet der for at muliggøre tilpasning af placeringen af elementerne 14 og 15 til 25 den foreliggende tagkonstruktion, herunder dennes hældning, er tilvejebragt integrerede ledforbindelser i form af filmhængsler 16 og 17 mellem udluftningselementet 12 og på dettes ene side understøtningselementet 14 og på dets anden side vandafledningselementet 15.As can be seen more clearly in FIG. 2-4, the 20 roof foot piece of the invention is constructed as a single unit with the vent element 12 in integral with both the support element 14 and the water drain element 15, to allow for the placement of the elements 14 and 15 to 25 of the present roof construction, including its inclination, For example, integral linkages are provided in the form of film hinges 16 and 17 between the vent element 12 and on one side the support element 14 and on the other side the water drain element 15.

30 Vandafledningselementet 15 er således i en første ledforbindelse 17 forbundet med udluftningselementet 12 langs den kant af dettes undervæg 18, som i den viste brugsstilling vender mod tagkonstruktionens indre.Thus, in a first hinge connection 17, the water drain element 15 is connected to the vent element 12 along the edge of its lower wall 18, which in the shown position of use faces the interior of the roof structure.

Regnet fra ledforbindelsen eller filmhængslet 17 35 omfatter vandafledningselementet 15 en monteringssektion DK 172299 B1 5 19 med skruehuller for skruer 20, hvormed tagfodstykket 11 fastgøres til det underliggende element i tagkonstruktionen, i dette tilfælde den nederste lægte 4, og en fodsektion 21, som er forbundet med monterings-5 sektionen 19 i en anden ledforbindelse eller filmhængsel 22 parallelt med filmhængslet 17.From the joint or film hinge 17 35, the water drain element 15 comprises a mounting section DK 172299 B1 5 19 with screw holes for screws 20, whereby the roof foot piece 11 is attached to the underlying element of the roof structure, in this case the lower leg 4, and a foot section 21 which is connected with the mounting section 19 in a second hinge joint or film hinge 22 parallel to the film hinge 17.

Monteringssektionen 19 er tillige udformet med integrerede snaplåseorganer 23 til sammenlåsning af monteringssektionen med udluftningselementet 12's undervæg 10 18 i den i fig. 1 viste sammenklappede stilling, efter at fodstykket er fastgjort til tagkonstruktionen med skruerne 20.The mounting section 19 is also formed with integrated snap-locking means 23 for interlocking the mounting section with the lower wall 10 18 of the vent element 12 in the embodiment shown in FIG. 1 after the foot piece is secured to the roof structure by the screws 20.

Her igennem opnås en lettelse af monteringen, idet fastgørelsen til tagkonstruktionen kan foretages med 15 monteringssektionen 19 svinget ud fra udluftningselementet 12. Samtidigt skjules fastgørelsesskruerne 20 ved den efterfølgende låsning af monteringssektionen 19 til udluftningselementet 12's undervægge 18 ved hjælp af låseorganerne 23.This facilitates the mounting, since the attachment to the roof structure can be made with the mounting section 19 pivoted from the vent element 12. At the same time, the fastening screws 20 are concealed by the subsequent locking of the mounting section 19 to the vent walls 12 of the vent element 12 by the locking means 23.

20 Fodsektionen 21 er som vist udformet med i det væsentlige L-formet tværsnit omfattende et indre afsnit 24 op til ledforbindelsen 22 og et ydre afsnit 25. Som følge af denne udformning og ledforbindelsen 22 kan fodsektionen 21 bukkes helt ind i tagrenden 6 med den 25 frie længdekant af det ydre afsnit 25 i anlæg mod tagrendens bagvæg, som vist stiplet i fig. 1.The foot section 21 is, as shown, formed with a substantially L-shaped cross-section comprising an inner section 24 up to the joint 22 and an outer section 25. As a result of this configuration and the joint 22 the foot section 21 can be fully folded into the gutter 6 by the 25 free longitudinal edge of the outer section 25 abutting against the back wall of the gutter, as shown dotted in FIG. First

Hermed nedsættes i væsentlig grad risikoen for, at vand fra tagrenden ved pludselig store vandmængder trænger ind i tagkonstruktionen.This significantly reduces the risk of water from the gutter at sudden large volumes of water entering the roof structure.

30 Samtidig sikrer ledforbindelsen 22, at der er nem adgang til rensning af tagrenden 6 ved at løfte fodsektionen 21.At the same time, the linkage 22 ensures that there is easy access to cleaning the gutter 6 by lifting the foot section 21.

Monteringssektionen 19 er som vist i fig. 3 på undersiden udformet med udragende tværribber 26 med en 35 indbyrdes afstand, som giver plads for placering af DK 172299 B1 6 rendejern 5 under fodstykket 11 uden behov for ned-fræsninger i sternbrædtet 3. For at undgå indtrængning af insekter m.v. gennem de herved dannede spalter er monteringssektionen ligeledes udformet med elastiske 5 fingre 26 a, som rager ud fra dens underside og danner et effektivt insektgitter.The mounting section 19 is shown in FIG. 3 on the underside formed with protruding transverse ribs 26 spaced apart, which allows for placement of the gutter 5 under the footpiece 11 without the need for cuts in the stern board 3. In order to avoid the penetration of insects etc. through the slots thus formed, the mounting section is also formed with elastic fingers 26a which protrude from its underside and form an effective insect grating.

I udluftningselementet 12 er luftpassagerne, som allerede nævnt udført som forholdsvis korte kanaler 13 med rektangulært tværsnit og adskilt af fælles skille-10 vægge 27. For at nedsætte den som følge af kanaludformningen i forvejen lille risiko for indtrængning af fygesne, insekter m.v. kan der i hver kanal 13's strømningstværsnit være anbragt et insektgitter f.eks. i form af integrerede diagonale gitterstænger 28 orien-15 teret mellem overkanten ved udluftningselementet 12's forside og underkanten ved dets bagside.In the vent element 12, as already mentioned, the air passages are made as relatively short ducts 13 of rectangular cross-section and separated by common partitions 10 walls 27. In order to reduce the risk of penetration of the figs, insects and so on, due to the duct design. For example, in the flow cross-section of each channel 13, an insect grid may be provided, e.g. in the form of integrated diagonal lattice bars 28 oriented between the top edge of the vent element 12 and the bottom edge at its rear.

Som det yderligere fremgår, forløber ledforbindelsen 16 mellem udluftningselementet 12 og understøtningselementet 14 langs den bagudvendende kant af udluft-20 ningselementet 12's overvæg 29. I denne er der parallelt med ledforbindelsen 16 udformet en længdeprofilering, f.eks. i form af en lille ophøjning eller fordybning 30, som kan tjene som tilskæringslinie ved tilpasning af undertagsdugen 8.As is further apparent, the joint 16 extends between the vent member 12 and the support member 14 along the rearward edge of the vent 20 of the vent 20 in which a longitudinal profiling, e.g. in the form of a small elevation or recess 30, which can serve as a cutting line when adjusting the roof cloth 8.

25 Ved sin udadvendende side er udluftningselementet 12 udformet med klipslignende monterings- og holdeorganer 31 for svingbar montering af et separat klemelement 32 og fastholdelse af dette i en låsestilling til ind-klemning af et kantområde af den tilskårne underdug 8 30 mod udluftningselementet 12's overvæg 29.At its outward side, the vent element 12 is formed with clip-like mounting and retaining means 31 for pivotally mounting a separate clamp member 32 and holding it in a locking position for clamping an edge region of the cut underwire 8 30 against the vent wall 12 of the vent element 12.

Klemelementet 32, som udgør et separat element i forhold til fodstykket 11, er udformet som en langstrakt liste 33, som på den ene side har udragende klemtunger 34 til fastholdelse af undertagsdugen og på den anden 35 side udragende tapelementer 35 til indgreb med mon- DK 172299 B1 7 terings- og holdeorganerne 31. Efter, at undertagsdugen 8 er korrekt placeret kan det separat monterede klemelement 32 svinges til den i fig. 2 til højre viste stilling, hvor der låses ved snapindgreb mellem hageele-5 menter 36 på undersiden af tungerne 34 og gribeåbninger 37 i udluftningselementet 12's overvæg. Klemelementet 32 er fortrinsvis så robust udført, at den nederste række tagsten i beklædningen 10 kan hvile direkte på klemelementet 32.The clamping element 32, which forms a separate element with respect to the footpiece 11, is formed as an elongated strip 33 which, on the one hand, has protruding clamping tongues 34 for retaining the roofing cloth and on the other 35 protruding taping elements 35 for engagement with mono-DK. The cage and retaining means 31. After the roof cloth 8 is correctly positioned, the separately mounted clamping element 32 can be pivoted to the one shown in FIG. 2 to the right, where it is locked by snap engagement between chin elements 36 on the underside of the tongues 34 and gripping openings 37 in the overlap of the vent element 12. The clamping element 32 is preferably designed so robustly that the lower row of tiles in the cladding 10 can rest directly on the clamping element 32.

10 Idet understøtningselementet 14 generelt har form som et pladeelement med betydelig bredde, opnås herigennem en sikker fastholdelse af undertagsdugen 8's nederste del således, at nedbuling eller sækdannelse af undertagsdugen og den dermed forbundne risiko for 15 vandansamlinger undgås.As the support element 14 is generally in the form of a plate element of considerable width, hereby a secure retention of the lower part of the roofing cloth 8 is achieved so that bulging or sacking of the roofing cloth and the associated risk of water accumulation is avoided.

På sin underside kan understøtningselementet 14 være forsynet med afstivningsribber 38 som fra ledforbindelsen 16 strækker sig ud til er kantområde 39, hvor elementet er friholdt for afstivningsribberne 38 og i 20 stedet er udformet med forholdsvis smalle, elastisk eftergivelige fingre 40, som muliggør en enkelt tilpasning af fodstykket 11 til tagkonstruktionens spærelementer 1 ved, at fingrene 40 enten bukkes op eller brækkes af ud for sådanne spærelementer.On its underside, the support member 14 may be provided with stiffening ribs 38 which extend from the hinge connection 16 to edge area 39, where the member is held free of the stiffening ribs 38 and is instead formed with relatively narrow, elastically resilient fingers 40 which allow for a single fit. of the footpiece 11 of the roof members 1 of the roof structure in that the fingers 40 are either bent up or broken off against such rafters.

25 I understøtningselementet 14's underside er tillige, som vist i fig. 3, udformet langsgående spor 41 gennem ribberne 38 til optagelse af taplignende forbindelseselementer 42 til samling af tagfodstykker 11 i forlængelse af hinanden.In the underside of the support element 14, as shown in FIG. 3, longitudinal grooves 41 are formed through the ribs 38 for receiving pin-like connecting members 42 for joining roof footings 11 in succession.

30 Tagfodstykket ifølge opfindelsen fremstilles ved støbning af plastmateriale, f.eks. polypropylen, med ledforbindelserne 16, 17 og 22 udført som såkaldte filmhængsler. Udstøbningen foretages hensigtsmæssigt i den i fig. 4 viste indbyrdes stilling af de enkelte 35 elementer i fodstykket.The roof foot piece of the invention is made by molding plastic material, e.g. polypropylene, with articulated joints 16, 17 and 22 formed as so-called film hinges. The molding is conveniently made in the embodiment shown in FIG. 4 shows the position of the individual 35 elements in the foot piece.

DK 172299 B1 8DK 172299 B1 8

Fodstykket ifølge opfindelsen kan fremstilles i passende håndterlige længder, for eksempel 120 cm svarende til modulmål som normalt benyttes indenfor byggeriet.The foot piece according to the invention can be made in suitable manageable lengths, for example 120 cm corresponding to module dimensions normally used in the construction.

5 Opfindelsen er ikke begrænset til den viste og beskrevne udførelsesform for fodstykket, idet udformningen af de enkelte elementer i den integrerede enhed kan varieres indenfor vide rammer.The invention is not limited to the embodiment and described embodiment of the footpiece, since the design of the individual elements of the integrated unit can be varied within wide frames.

Claims

A ventilating roof base comprising an elongated vent element (12) with transverse air passages (13) for mounting between the upper side of a stern board (3) and any underlying leg element (4) and the overlying roof covering (10) and in connection therewith a support element (14) for a roofing foil (8) and a water drainage element (15), said support and water drainage elements (14,15) being in the form of plate profiles which protrude from each other throughout the length of the vent element (12). sides thereof, which in a position of use of the roof foot piece face respectively the interior of the roof structure and against a roof (15) mounted on the outside of the stern board (3), characterized in that the roof foot piece (1 1) is made as a single unit in molded plastic material with the vent element (12) in integral relationship with said support and water drainage elements (14, 15) and that between the vent element (12) and one side thereof 20 e the support member (14) and, on the other hand, the water drain element (15), provide integrated link connections (16, 17) for adapting the locations of the support and water drainage elements (14, 15) to the present roof structure.

Ventilating roof base according to claim 1, characterized in that the water drain element (15) in a first hinge connection (17) is connected to the vent element (12) at the edge of the lower wall (18) determined for its position on the stern board (3). 30, which in its position of use faces the interior of the roof structure and comprises from the said linkage (17) a mounting section (19) with fasteners for mounting on the upper side of an element of the roof structure and a foot section (21) connected to DK 172299 B1. the mounting section (19) of a second integrated hinge connection (22) parallel to the first hinge connection (17), wherein the mounting section (19) is provided with snap-locking means (23) for interlocking the vent element (12) and the mounting section (19) after the latter section attachment to the roof structure.

Ventilating roof foot piece according to claim 2, characterized in that the foot section (21) is formed with a substantially L-shaped cross-section comprising an inner 10 and an outer section (24, 25) calculated from said second joint connection (22) for to allow folding of the foot section into a gutter (6) with the free longitudinal edge of the outer section (25) abutting against a rear wall thereof.

Ventilating roof base according to claim 2 or 15, characterized in that the mounting section (19) is formed on its underside with projecting transverse ribs (26) with a mutual spacing, which allows space for gutter (5) to be placed on the upper side of the stern board.

Ventilating roof base according to one of the preceding 20, characterized in that the air passages (13) of the venting element (12) are made as relatively short air ducts of rectangular cross-section and separated by common partitions (27), where there is in the flow cross-section of each duct arranged an insect grid in the form of diagonal grid bars (28) oriented between the upper edge at the front of the vent element and the lower edge at its rear.

Ventilating roof base according to one of the preceding claims, characterized in that the supporting element (14) is connected to the vent element in a third joint connection (16) which extends along the edge of a wall (29) in the vent element, as in the position of use is intended to face the interior of the roof structure and that in parallel with this hinge connection (16) in said overhead wall (29), a longitudinal profile (30) is designed as a cutting line for adapting a roof foil.

Ventilating roof base according to one of the preceding claims, characterized in that the vent element (12) at the side which is intended to face outwards in the use position is provided with mounting and holding means (31) for pivotable mounting a clamping element (32) and holding it in a locking position for holding a roof foil (8) against the overlap (29) of the vent element (12).

Ventilating roof base according to one of the preceding claims, characterized in that the support element (14) is formed as a plate element of considerable width and with stiffening ribs (38) on the underside, wherein the support element (14) in an edge area along said third articulated joint (16) parallel longitudinal free edge is held free of said stiffening ribs (38) and formed with elastically yieldable fingers (40) for adaptation to locking elements 20 (1) in the roof structure.

Ventilating roof foot piece according to claim 8, characterized in that longitudinal grooves (41) for receiving tab-like connecting members (42) are formed on the underside of the support element (14) for joining roof foot pieces (11) in succession.

Ventilating roof base according to one of the preceding claims, characterized in that said integrated linkage connections (16, 17, 22) are made as film hinges.