SE418630B

SE418630B - Roof element

Info

Publication number: SE418630B
Application number: SE7806925A
Authority: SE
Inventors: B O I Larsson; K L Noren
Original assignee: Gullfiber Ab
Priority date: 1978-05-15
Filing date: 1978-05-15
Publication date: 1981-06-15
Also published as: SE7806925L

Abstract

Roof constructions, which, taken from the top, comprise a concrete or sheet-metal frame 10, a heat-insulating upper course 22 of, for example, mineral wool, a diffusion barrier 24, and a lower, preferably heat-insulating, fire- insulating and sound-absorbing course 26, are normally finished under often relatively complicated conditions at the place of use. The aim is now to instead produce prefabricated roof elements, which can be transported, ready-made, from a factory to the place of use. Such a roof element shall in this case comprise a bearing structure 14, 16, 18, which holds the various parts of the element firmly bound to the frame 10, so that the element can be handled as a single component. The bearing structure consists of mutually joined profile elements. <IMAGE>

Description

01 10 15 20 25 30 40 71806925-9 2- p1atta, som vid undersidan är försedd med utskjutande ba1kar 12, vi1ka är anordnade para11e11t med varandra och sträcker sig utmed he1a stom- längden. Ba1karna 12, som i utföringsexemp1et är två ti11 anta1et, har para11e11epipedisk form och avståndet me11an desamma är dubbe1t så stort som avståndet frânstommens 10 ena 1ângsida ti11 den när- maste ba1kens ytterkant. 01 10 15 20 25 30 40 71806925-9 2-plate, which at the underside is provided with projecting beams 12, which are arranged parallel to each other and extend along the entire frame length. The beams 12, which in the embodiment are two to the number, have a parallelepipedic shape and the distance between them is twice as large as the distance from one longitudinal side of the frame 10 to the outer edge of the nearest beam.

En bärkonstruktion, som består av sammankopp1ade profi1e1ement 14, 16, 18,är fast bunden ti11 stommen 10 via stag 20 i form av vid take1ementets sidokanter anordnade meta11band. Bärkonstruktionen innefattar i det visade exemp1et L- och T-profi1er 14, 16 respektive 18. Take1emaﬁd:har van1igen para11e11epipedisk form, varvid L- profi- 1erna 14, 16 sträcker sig runt a11a eiementets undre begränsnings- kanter. Dessa L-profi1er 14, 16 är härvid så vända, att de bi1dar norma1a hörnkanter, mot vi1ka det innanför begränsningskanterna be- fintliga materia1et kan stödja. Vid sammanfogningsstä11ena me11an de 1ängsgâende och tvärgående L-profi1erna vi1ar nämnda profi1er 14, 16 mot varandra på sådant sätt, att de kortare profi1erna 14 stödjer mot de 1ängre 16. Para11e11t med de kortare L-profi1erna sträcker sig T-profi1erna 18, vi1ka också stödjer mot de 1ängre L-profi1erna 16.A support structure, which consists of interconnected profiling elements 14, 16, 18, is fixedly connected to the frame 10 via struts 20 in the form of metal strips arranged at the side edges of the roof element. The support structure in the example shown comprises L- and T-profiles 14, 16 and 18, respectively 18. The take1s: d: usually have a parallelepipedic shape, the L-profiles 14, 16 extending around the lower limiting edges of the whole element. These L-profiles 14, 16 are in this case turned so that they form normal corner edges, against which the material existing inside the boundary edges can support. At the joining positions between the longitudinal and transverse L-profiles, said profiles 14, 16 face each other in such a way that the shorter profiles 14 support against the longer 16. In parallel with the shorter L-profiles, the T-profiles 18 also extend. against the longer L-profiles 16.

T-profi1erna 18 är jämnt fördelade utmed take1ementets he1a 1ängd och ovannämnda stag 20, som överspänner me11anrummet me11an stommen 10 och bärkonstruktionen, kan, såsom framgår av ritningen, 1ämp1igen vara anordnade i nära ans1utning ti11 T-profi1erna 18 samt eventue11t också förde1ade utmed de kortare L-profi1erna 14.The T-profiles 18 are evenly distributed along the entire length of the roof element and the above-mentioned struts 20, which span the space between the frame 10 and the support structure, may, as shown in the drawing, be suitably arranged in close proximity to the T-profiles 18 and possibly also shortened. L-profiles 14.

Stagen 20 kan vid den ena änden exempe1vis vara ingjutna i stom- men 10 e11er mede1st skruvförband fixerade vid denna och vid den andra änden kan de vara fastsvetsade på respektive L-profi1 14, 16.The struts 20 can at one end, for example, be molded into the body 10 or by means of screw connections fixed to this and at the other end they can be welded to the respective L-profile 14, 16.

Det värmeiso1erande skiktet 22 - iso1eringen - som kan bestå av minera1u11, ce11p1ast e11er 1iknande, är anordnat me11an när1iggande stomba1kar 12 respektive me11an en ba1k 12 och motsvarande kantstag 20 vid take1ementets respektive 1ångsida. 1so1eringen ru11as med förde1 ut i he1a 1ängder, som motsvarar take1ementets tota1a 1ängd.The heat insulating layer 22 - the insulation - which may consist of mineral, plastic or similar, is arranged between adjacent body beams 12 and between a beam 12 and the corresponding edge bracket 20 at the longitudinal side of the roof element, respectively. The insulation is rolled with the advantage out in whole lengths, which corresponds to the total length of the take1 element.

Lämp1igen överensstämmer det värmeiso1erande skiktets 22 tjock1ek med stomba1khöjden, sä att ba1karnas 12 undersida kommer att 1igga i nivå med det värmeiso1erande skiktets 22 undersida. Under det värme- iso1erande skiktet 22 finns en diffusionsspärr 24 i form av en p1ast- fo1ie och under nämnda p1astfo1ie finns sedan ett värmeiso1erande, brandiso1erande och 1judabsorberande undre skikt 26, som också kan bestå av minera1u11 e11er 1iknande. Om minera1u11 vä1jes för både det övre värmeiso1erande skiktet 22 och det undre skiktet 26, kan det l0 20 3 7806925-9 senare lämpligen ha något högre densitet än det förra. Genom en elementkonstruktion av ovan angivet slag underlättas hanteringen av takelementet och också hopmonteringen av detsamma.Suitably the thickness of the heat insulating layer 22 corresponds to the height of the body beam, so that the underside of the beams 12 will be flush with the underside of the heat insulating layer 22. Below the heat-insulating layer 22 there is a diffusion barrier 24 in the form of a plastic foil and under said plastic foil there is then a heat-insulating, fire-insulating and sound-absorbing lower layer 26, which may also consist of mineral oil or the like. If mineral oil is selected for both the upper heat insulating layer 22 and the lower layer 26, the latter may suitably have a slightly higher density than the former. An element construction of the type indicated above facilitates the handling of the roof element and also the assembly thereof.

Det värmeisolerande, brandisolerande och ljudabsorberande undre skiktet 26 kan i sig utgöra ett undre ytskikt men det är även tänkbart att under nämnda undre skikt anordna ett separat undre ytskikt (icke visat). Ett dylikt separat ytskikt kan då väljas allt efter takele- mentets användningsområde och de speciella krav, som härvid skall gälla.The heat-insulating, fire-insulating and sound-absorbing lower layer 26 can in itself constitute a lower surface layer, but it is also conceivable to arrange a separate lower surface layer (not shown) under said lower layer. Such a separate surface layer can then be selected according to the area of use of the roof element and the special requirements that shall apply in this case.

Vid undersidan av de utskjutande stombalkarna 12 är, exempelvis med hjälp av skruvförband, särskilda fästorgan 28 fastsatta, vilka, såsom framgår av ritningen, är försedda med nedåt riktade hullingar 30 och avsedda att gripa in i och hålla kvar det undre skiktet 26.Attached to the underside of the projecting frame beams 12, for example by means of screw connections, are special fastening means 28, which, as can be seen from the drawing, are provided with downwardly directed barbs 30 and are intended to engage and retain the lower layer 26.

För samma ändamål kan man om så önskas också använda stift och brickor.For the same purpose, you can also use pins and washers if desired.

Stiften fixeras då lämpligen vid respektive balks undersida och får skjuta ut vid undersidan av det undre skiktet, där respektive brickor reglar detta.The pins are then suitably fixed to the underside of each beam and may protrude at the underside of the lower layer, where the respective washers regulate this.

Den ovan beskrivna takelementkonstruktionen kan naturligtvis modifieras inom vida gränser. Bärkonstruktionen är sålunda inte till sin uppbyggnad begränsad till L- och T-profiler. Stomelementets ut- skjutande balkar kan naturligtvis också ha annan formgivning än den på ritningen visade och stagen mellan stommen och bärkonstruktionen kan också utformas pa olika sätt.The roof element construction described above can of course be modified within wide limits. The support structure is thus not limited in its construction to L- and T-profiles. The projecting beams of the frame element can of course also have a different design than that shown in the drawing and the struts between the frame and the supporting structure can also be designed in different ways.

Claims

? 806925'9 PATENTknAv,

Prefabricated roofing element, in the view from the top, includes a frame (10), a heat-insulating upper layer (22) of eg mineraiuii. a diffusion barrier (24) and a lower layer with preferably heat-insulating, fire-insulating and sound-absorbing properties (26), characterized in that the upper layer (22), the diffusion barrier (24) and the lower layer (26) are so arranged with the roof covering (10) and a supporting support structure (14, 16, 18), which is firmly anchored in the frame and consists of joined joints, to cover the entire one main side of the upper layer (22). abuts the body (10), the other main side of the upper layer abuts the diffusion barrier (24) and the diffusion barrier also abuts the lower layer (26).

Takeiement according to claim 1, characterized in that the parts of the lower layer (26) are inlaid with the profii- eiement at the same time as they rest against them.

An element according to any one of claims 1 - 2, wherein both the upper (22) and the lower layer (26) consist of minerals, characterized in that the lower layer (26) has a higher density than the upper layer. heat-insulating mineral layer (22).

A roof element according to any one of claims 1 to 3, characterized in that the profile elements comprise L-profiles (14, 16), which are arranged along the lower limiting edges of the roof element, and T-profiles (18), which are arranged at a mutual distance with two opposite L-profiles.

5. An element according to any one of claims 1 to 4, characterized in that beams (12) having projections, against which side edges and parts of said heat-insulating layer (22) abut, project towards the supporting structure from the frame. (10) underside.

6. An assembly according to any one of claims 1 - 5, characterized in that a separate surface layer is arranged to abut against the support structure under the lower layer (26).

7. An assembly according to claim 5 or 6, characterized in that fastening means (28) are attached to said beams (12) or projections and arranged to retain the lower layer (26). 5 78064925-9

Taking element according to Claim 7, characterized in that the fastening means (28) are provided with hubs engaging in the lower layer (26).

9. An assembly according to claim 7, characterized in that the fastening means are constituted by pins and that corresponding washers are arranged for directing the lower layer (26) at its underside.