DE19618587A1 - Substructure used in wooden frame for roof of building - Google Patents

Abstract

The substructure is for the wooden roof of a building. It consists of a broad vertical board (1) which slots into a broad foot (2) at the bottom. The bottom or front side (7) of this foot is flat. Additional narrow boards (3,4) are fastened near the top of the broad vertical board, leaving a narrow groove (5) between them. These narrow boards may be on either side of the broad vertical board.

Description

The invention relates to a method for establishing a Substructure for roofs made of wood, Walls and the like, the beam-shaped load-bearing elements exhibit. The invention finds application, for example when expanding an attic or when cladding Half-timbered walls.

In the known methods of this type can be found below be done in different ways. So can on load-bearing wooden components, e.g. B. the wooden rafters, across Rafters applied a wooden slat or a wooden bar be at the intersection for rafters in one Straight line or a plane must be aligned to the Attaching plates, e.g. B. plasterboard, to lichen. The wooden bars or the Wooden slats with correspondingly large wooden blocks underneath feeds. The is between the panels and the roof skin Insulation. The relatively high mon is a disadvantage here daily expenditure. In addition, the thickness of the insulation, from Distance of the wooden slat or wooden bar to the beam shaped load-bearing element depends, not freely chosen will.

In another known method, a wooden plank is used mounted on the side parallel to the rafters. It is for that however, the wooden plank required a narrow side with an edge length of more than 25 mm, preferably more than 40 mm, has to meet the required airtightness or to apply vapor control systems and other construct tion parts. There is also a width  this wooden plank of at least 10 to 12 cm, preferably at least 14 cm required to fix the screed on the side To be able to fix rafters.

In this process, it is disadvantageous that long verbin extension elements (screws) must be selected. This Construction also tends to warp as it is a solid wooden plank.

A particularly serious disadvantage is the high one Weight of the wooden plank due to the large cross section. This disadvantage also applies when using massi ven sheet materials, e.g. B. Blockboards in 38 mm Strength instead of this wooden plank.

The high weight of such components for erecting Substructures make the necessary alignment difficult of these components in one plane or straight line.

In a third known procedure, a latte is used directly on the outer surface, in the case of roof construction thus immediately below the rafters and parallel lel arranged to this. The disadvantage is the very high Alignment effort and the lack of opportunity To be able to choose insulation thickness individually.

Finally, there are substructures made of metal known with so-called direct dependance systems. The Building such substructures requires one high assembly effort. Here too, the insulation thickness cannot be set individually.

The invention is based, with a Ver drive a fast, landlord of the type mentioned economic and problem-free erection of the sub to allow construction, while also the insulation strength in the insulation of wooden components regardless of Cross section of the load-bearing woodwork can be selected.  

This object is achieved in that each an elongated, plate-shaped lightweight construction element with a widening in the area of one lan edge with the opposite edge area on the beam-shaped supporting elements attached so that the Widening inwards or downwards, and the front side of widening each lightweight element in one Level aligns with the front of the widening as a substantially perpendicular to the plate surface lying plane is formed.

The widening on the front serves to accommodate the thermal insulation serving other elements, for. B. one Airtight membrane, a vapor barrier, a vapor barrier etc.

The method according to the invention enables a simple one Alignment of substructure made of wood ions. The roof extension element is a lightweight element, So carried out with a low weight, what by a suitable selection of the material is achieved. Preferential the plate-shaped lightweight component consists of a wood-based material. It can also be a combination several wood materials exist. Alignment also very much large bumps and misalignments is ent speaking dimensioning of the roof extension element guaranteed. The widening on the front enables light the attachment of vapor barrier films, vapor barriers plates, etc. in the required form as well as the Attachment of other construction elements and / or Clothing. The plate-like shape of the lightweight construction element and thus its relatively small cross-section ver wrinkles the cold bridges compared to the state of the art and thus enables optimal thermal protection through the Insulation material to be installed within the substructure lien.  

The roof extension element or lightweight construction is preferred element made in different dimensions to on the one hand, regardless of the wood cross-section of the load-bearing Elements to achieve the desired insulation thickness and around on the other hand, an adaptation to local conditions enable.

Preferably, you attach the lightweight component that in this application is also called roof extension element with its plate-shaped area on a lateral surface beam-shaped supporting element by screwing or Nail. As the lateral surface of the bar-shaped element will be perpendicular to the ceiling or wall level de elongated surface in contrast to the front and inscribed to the back.

It is of course necessary that the roof extension element static requirements are sufficient.

In a further advantageous embodiment of the inventions The method according to the invention is always lightweight element on opposite side surfaces the substantially parallel bal conical supporting elements, the lightweight construction elements in the area of widening ver the edge one or more parallel to this edge current bars carry and roll paper goods, Plastic or wood materials on the strips on or pushes them into the grooves formed by the strips.

This creates an opportunity for quick, one simple and effective way of widening and the top of the lightweight component Insulation on top to protect and windproof to cover.

The invention also relates to a roof extension element for Erection of a substructure for wood construction manufactured roofs, walls and the like, the beams  Have moderate load-bearing elements. The inventive the above-mentioned object is achieved here, that the roof extension element from an elongated plate-shaped lightweight component with a widening in the area of one long edge and that the Front of the broadening as one essentially plane perpendicular to the plate surface is.

The spread preferably extends over the entire edge of the panel surface.

It is also proposed that the roof extension element in plate-shaped area can be screwed, nailed and sawn.

Discard and cracking of the substructure is avoided in a cost-effective manner or on a mini mum limited if the plate-shaped area from a or several wood-based materials and the widening Solid wood exists. Under the term "wood materials For example, hardboard is included in this application understand.

In addition, special, also already mentioned above Advantages achieved when one or more in the field of the widening opposite edge on the flat shaped element attached, parallel to this edge running strips are provided.

In a further advantageous embodiment of the inventions General roof extension element are the following problems mentioned in the prior art solved.

The thermal insulation of roofs, roof structures and lower right wooden structures with plate-like warmth Insulation is extremely difficult to achieve in a satisfactory manner Way to achieve. Plate-like materials have näm  Lich no or insufficient elasticity in the Slab level to adapt to the unevenness of the beams. These thermal insulation materials usually have a specific one Width dimension, for example 50, 60 and 62.5 cm. Problems arise between the insulation in the wooden beam area the wooden beams, as the ones actually found on site Width dimensions very small due to structural dimensional tolerances are different and can vary widely. The temporal Effort for cutting plate-shaped thermal insulation fabrics in order to adjust them to the exact width bring is very high. Therefore can be plate-shaped Thermal insulation materials between the Fit rafters. Often there is thermal insulation of beams spaces with plate-shaped thermal insulation materials economic way not possible, because the clean one bring these thermal insulation materials too much time means and also turns out to be impractical poses. In addition, the plate-shaped heat Insulation does not shrink due to its high stability the existing beam construction by drying the Adjust the wood so that cold bridges are created.

In a further advantageous embodiment of the Erfin dung is therefore proposed that an elastically kompri mable layer on one surface of the elongated plate-shaped area of the lightweight component attached is. This layer can be applied laterally to the element be glued. It preferably has a thickness of 20 up to 200 mm. The layer depends on the material Compressible to 10 mm or less.

After installing such, with the elastically com primable layer provided roof expansion element an essentially rigid plate-shaped thermal insulation material between the wooden beams to be insulated in a simple way be pinched. The elastic layer is on compresses the measure that results from the difference of the Space between the beams and the width of the heat  insulation board results. In addition to the simple installation of panel-shaped thermal insulation materials even when different The smallest dimensions of the spaces between the bars are also used for one Changing these dimensions by drying the wood the very Maintain high tightness of thermal insulation in the long run.

Preferably, the elastically compressible extends Layer over the entire length of the lightweight component to achieve a complete seal. Especially the elastically compressible layer consists of a Thermal insulation material to verge cold bridges at this point avoid.

In summary, the advantages of Invention are called.

The roof extension element or lightweight element according to the On the one hand, invention is universal as an aid to Erection of substructures can be used. The advantages a quick assembly with a connection-free Element reached that has a low weight.

The latter advantage is particularly in the case of old built very highly.

The strength of the attached in the space between the bars Insulation can be individually selected by choosing the porridge adjust the roof extension elements.

The air prescribed by the relevant standards tightness in the area of the attic extensions is ensured by Sheets and foils reached on the front of the Widening can be applied.

Auxiliary strips on the opposite of the widening Edges allow the additional assembly of rolled goods made of plastic, paper or wood materials, which the Protect thermal insulation on the top and cover it windproof. The auxiliary strips can be arranged in a groove, or  this auxiliary element can be grooved directly. This Auxiliary strips in the upper area of the roof extension element allow a much faster assembly than this performed with individual elements to be attached on site can be.

Instead of two parallel and spaced apart According to the invention, fender auxiliary strips can also be a single one correspondingly wider bar with a corresponding groove be provided.

An elastically compressible layer on one surface of the elongated plate-shaped lightweight component enables for the first time a satisfactory, lasting effect same heat that can be applied economically Insulation with plate-shaped thermal insulation materials in the cavity between the wooden beams.

In the following, several embodiments of the Invention described with reference to drawings. It demonstrate

Fig. 1 shows a cross section through a roof extension member having a lower side eingenuteten wood strip according to a first embodiment,

Fig. 2 shows a cross section through a roof extension member having a side-mounted strip of wood according to a second embodiment,

Fig. 3 shows a cross section through a roof extension member having a lower side ausgefälzten wood strip according to a third embodiment,

Fig. 4 is a side view of the roof expansion element of FIG. 1 in the direction of the arrow 6,

Fig. 5 is a side view of the roof expansion element of FIG. 2 in the direction of the arrow 6,

Fig. 6 is a side view of the roof expansion element of FIG. 3 in the direction of the arrow 6,

Fig. 7 shows a cross section through a roof extension element with a laterally applied elastically compressible layer according to a fourth exemplary embodiment and

Fig. 8 shows the installed state of the roof extension elements according to Fig. 7 in cross section.

The same reference numerals have been used in all drawings have the same meaning and are therefore possibly only one times explained.

The plate-shaped area 1 of the roof construction element shown in the drawings can be made of different wood materials such as hardboard, plywood, chipboard, etc.

The width dimensions can be different however preferably between 5 and 30 cm. Deviations are possible up and down.

The length dimensions of the roof fittings shown can also vary. They are generally from the length of the wood-based panels used, can also be done by assembling several woodwork fabric panels can be made to any length.

The roof extension elements have a widening 2 on one long edge, which can be made from solid wood or from different wood-based panels, such as hardboard, plywood, chipboard, etc.

The options shown in the drawings for connecting the plate-shaped area 1 with the Ver widening 2 are shown here only as an example. All methods of connecting two wood or wood-based material elements that are customary in terms of craftsmanship and mechanics are possible.

The roof extension illustrated in FIGS. 1 and 2 carry items on their broadening 2 opposite long edge aligned parallel to afford wood 3, 4. The groove formed by the wooden strips 3 , 4 allows the insertion of rolled goods or plate-shaped elements, as already explained above and in connection with the claims 3 and 8.

The side views shown in FIGS. 4 to 6 are understandable from themselves.

In the drawings the connection of the widenings to the respective, made of wood-based panels plate-shaped areas clearly. The lengths of the elements depend on the length of the wood-based panels. At The lengths of element joints are unlimited.

The roof extension elements are mounted with their plate-shaped areas 1 laterally on existing construction timber, z. B. by screwing, nailing, gluing or by means of other common connections. The adjustment and the distance in which these roof extension elements are mounted against the existing construction timber determine the thickness of the insulation and enable the roof truss or the wooden components to be insulated and clad to be aligned.

The widenings 2 are used to hold airtight processing and steam sealing elements in the form of papers or foils. Furthermore, these widenings 2 serve to accommodate cladding in the form of wood cladding, panels, plasterboard, gypsum fiber or similar cladding panels for dry interior construction.

Light subscribed 1 7 verdeut, as in a loft conversion element according to a fourth embodiment of an elastically compressible layer 8 is fully applied evenly on one side of the plate-shaped region 1: the scale of about 1.. The layer 8 can be attached by gluing, mechanical means or other types of connection.

The additional advantages of the roof extension element shown in FIG. 7 become clear in FIG. 8. Here, a cavity to be insulated is shown between two wooden beams 9 and the thermal insulation installed with the help of the roof extension elements according to the invention. The roof extension elements are attached laterally to the wooden beams 9 with their elongated plate-shaped areas 1 . On the other side of the plate-shaped area 1 , an elastically compressible layer 8 is applied. When installing a rigid thermal insulation panel 10 , the layer 8 is compressed, so that a permanently tight and gapless insulation between the elastic layer 8 of the roof extension element and the opposite wooden beam 9 is achieved without the thermal insulation panel 10 must be cut to a precise measure.

To clarify the purpose of the widenings 2 shows

Fig. 8 also an attached panel 11 , in its place an additional Unterkonstruk tion level can occur, as well as an airtight or vapor retardant layer in the form of a film 12 , the plate 11 is attached between the underside of the extensions 2 and the panel.

Reference list

1 plate-shaped area
2 widening
3 wooden slats
4 wooden slats
5 groove
6 arrow
7 front
8 elastically compressible layer
9 wooden beams
10 thermal insulation board
11 cladding panel or additional substructure level
12 air or vapor barrier film.

Claims (11)

1. A method for erecting a substructure for roofs, walls and the like made of wood construction, which have beam-shaped load-bearing elements, characterized in that in each case an elongated plate-shaped lightweight construction element ( 1 ) with a widening ( 2 ) in the region of a long edge with the opposite edge area attached to the beam-shaped load-bearing elements, so that the Ver widening ( 2 ) points inwards or downwards, and the front ( 7 ) of the widening ( 2 ) aligns each lightweight element in one plane, the front side ( 7 ) the widening ( 2 ) is designed as a plane lying substantially perpendicular to the plate surface. 2. The method according to claim 1, characterized in that the lightweight element with its plate-shaped region ( 1 ) is fastened to a lateral surface of the beam-shaped supporting element by screws or nailing. 3. The method according to claim 1 or 2, characterized in that one attaches a lightweight component on opposite side surfaces of the substantially Lich parallel to each other beam-shaped supporting elements, the lightweight elements in the area of the widening ( 2 ) opposite edge or carry several strips ( 3 , 4 ) running parallel to this edge, and that rolled goods made of paper, plastic or wood materials are placed on the strips ( 3 , 4 ) or in the grooves ( 5. 4 ) formed by the strips ( 3 , 4 ) ). 4. roof extension element for building a sub construction for wooden roofs, walls and the like, which have beam-shaped load-bearing elements, characterized in that the roof extension element consists of an elongated plate-shaped lightweight construction element with a Ver widening ( 2 ) in the region of a long edge and that the front ( 7 ) of the widening ( 2 ) as a substantially perpendicular to the plate surface ( 1 ) lying plane is formed. 5. Roof extension element according to claim 4, characterized in that the widening ( 2 ) extends over the entire edge of the plate surface ( 1 ). 6. Roof extension element according to claim 4 or 5, characterized in that it can be screwed, nailed and sawn in the plate-shaped area ( 1 ). 7. Roof extension element according to one of claims 4 to 6, characterized in that the plate-shaped area ( 1 ) consists of one or more wood-based materials and the widening ( 2 ) consists of solid wood. 8. roof extension element according to one of claims 4 to 7, characterized by one or more in the region of the widening ( 2 ) opposite edge on the plate-shaped element ( 1 ) attached, extending parallel to this edge strips ( 3 , 4 ). 9. Roof extension element according to one of claims 4 to 8, characterized in that an elastically compressible layer ( 8 ) is attached to one surface of the elongated plate-shaped region ( 1 ). 10. Roof extension element according to claim 9, characterized in that the elastically compressible layer ( 8 ) extends over the entire length of the lightweight component ( 1 ). 11. Roof extension element according to claim 9 or 10, characterized in that the elastically compressible layer ( 8 ) consists of a thermal insulation material.