PL68574Y1 - Grid structure for supporting linings - Google Patents

Abstract

The lattice structure for supporting the cladding is characterized in that the structure (1) comprises an inner (4) and an outer (2) panel of solid wood, between which a layer (3) of structural mineral wool is glued. The lattice structure (1) is shaped to be attached to the load-bearing structure (5) only through the internal panel (4) made of solid wood, and the shear strength of the mineral wool layer (3) ranges from 1.5 kN/m to 15 kN/m.

Description

Pattern description

The object of the utility model is a plate for supporting the cladding.

As thermal insulation requirements increase, the thickness of the external walls increases, and this also places new demands on the attachment of external wall structures to load-bearing structures. Solid wood columns with a cladding are usually used as load-bearing structures, and insulation material is placed in the space between the columns. However, one of the problems associated with this is the formation of thermal bridges at the supporting structures.

The prior art document AT 12 476 U1 2012-06-15 discloses a wall element which comprises a base element of two plates joined together at a distance by a spacer. The space between the plates is filled with heat-insulating material, in particular cellulose. The spacer may be a wooden structure or it may be made of two plates which are connected to each other by a wooden structure. The empty space in the spacers can be filled with thermal insulation material. On the outer sides of the base element, further elements can be arranged, for example, facade insulation boards, plaster, rear ventilation facade, plywood cladding, etc. .

The purpose of the utility model is to provide a solution that prevents the formation of thermal bridges and the loads on the facade can be transferred from the cold side to the load-bearing structures on the warm side.

To achieve this goal, the utility model panel is characterized in that the inner panel is fastened to the supporting structure with screws, the combined thickness of the inner panel and the outer panel being about 1/5 of the thickness of the panel, and the shear strength of the mineral wool layer is at in the range of 1.5 kN / m to 15 kN / m.

Preferably, the solid wood panel is veneered wood.

The subject of the utility model is presented in the drawing where:

Fig. 1 shows a schematic horizontal section of a slab in a wall structure,

Fig. 2 shows a vertical section of a panel according to a utility model in a wall structure,

Fig. 3 shows a cross section of the board according to a utility model.

According to Figs. 1 and 2, the utility pattern panel 1 comprises an inner 4 and an outer 2 solid wood panel, between which a layer 3 of structural mineral wool wool is glued. The combined thickness of the inner panel 4 and the outer panel 2 is about 1/5 of the thickness of the panel 1. The panel 1 is shaped to be fastened by screws 12 to the solid wood panel support structure 5 of the outer wall structure only through the inner solid wood panel. The cladding 7 is fastened with screws 13 on slats 8, forming a ventilation gap 11. The space between the board 1 is filled with mineral wool 14, which is usually much softer than the structural wool 3 used in the board 1. Fig. 1 shows a windproof panel marked with reference numeral 6. on board 1 and a layer of mineral wool 14.

The supporting structure 5 is made of lining timber or CLT timber. The outer and inner solid wood layers 2 and 4 of the boards are preferably cladding wood. The top layer of the outer wall structure may be a glued laminated beam panel or a plain cladding panel.

Fig. 3 shows the thickness of the plate marked "b" and the width of its cross section marked "h". The dimensions of the slab in a typical external wall of a wooden multi-storey building are as follows, for U = 0.12 W / m2K:

Section width h = 260 mm Thickness b = 100 mm Joist spacing K600 (centers)

The facade suspension typically exerts the following shear loads on the K600 beam spacing slab:

Light wooden facade => 0.15 kN / m Heavy wooden facade => 0.20 kN / m Plastered facade => 0.54 kN / m

Claims (2)

The shear resistance (fracture resistance) of the panel according to the utility model can be adjusted by changing the structural density of the mineral wool. At a low structural density of mineral wool of 80 kg / m3, the shear resistance of the board (b / h = 100 mm / 260 mm) is in the order of 2.5 kN / m. By increasing the density of the mineral wool to 125 kg / m3, the shear strength of the board can be increased up to a value of the order of 10 kN / m3. The shear strength of the board was checked during laboratory tests in accordance with EN 12090, selecting the adhesive and the wooden structure of the board so that the crack always occurred in the structure of the mineral wool of the structure. Values are given without safety margins. The shear strength is preferably in the range from 1.5 to 15 kN / m, more preferably in the range from 2.5 to 10 kN / m. Laboratory tests have shown that thanks to the panel according to the utility model, it is possible to obtain sufficient shear strength values to place elevations on it without additional foundations or supports. Protective reservations 1. A panel for supporting the cladding, comprising an internal panel of solid wood and an external panel of solid wood, between which a layer of structural mineral wool is glued, characterized in that the internal panel (4) is fixed to the supporting structure (5) by screws (12). ), wherein the total thickness of the inner panel (4) and the outer panel (2) is about 1/5 of the thickness of the plate (1), in addition, the shear strength of the mineral wool layer (3) is in the range of 1.5 kN / m to 15 kN / m. 2. The plate according to claim 6. The material of claim 1, characterized in that the solid wood of the panels (2, 4) is veneered wood.