CZ12825U1 - Building panel of sandwich structure - Google Patents

Description

Building panel sandwich construction

Technical field

The technical solution relates to the constructional design of the building panel with improved thermal and acoustic insulation properties and longer durability.

BACKGROUND OF THE INVENTION

When solving technical problems with replacement of window elements in assemblies of existing apartment buildings, there was a problem with so-called lightweight window inserts (MTV). The reason for the problems and the weak link is the existing MTV with a wooden frame construction, usually provided with a glass pane on the outside, most often 6 mm thick, with an inner thermal insulation board of expanded polystyrene, most often 20 mm thick. The inner part of the MIV is made of chipboard. Especially the lower part of the frame and chipboard is subject to considerable deterioration quite soon, which during reconstruction leads to the overall replacement of damaged MIV. The same disadvantage has panels consisting of a wooden frame covered on both sides with building boards, which, depending on the purpose for which the panels are intended, may be chipboard or fibreboard, cement-bonded particleboard or plasterboard. According to Utility Model No. 3966, a self-supporting sandwich-type panel consists of two parallel building boards which, with the exception of the peripheral 25 to 50 mm, are joined over the entire surface by a rigid plastic foam such as polyurethane or polyisocyanate foam. it consists of two non-adjacent parallel strips of the same material as the building board of the panel. Utility model

CZ 3774 describes a construction of a multi-layered glass panel, consisting of supporting frames provided with insulating layers and a glass layer, wherein another insulating layer of non-absorbent insulating material is interposed between the insulating layers and the glass layer. filler with non-absorbent insulating material. This solution enables the use of the existing load-bearing façade constructions for the reconstruction of buildings with minimal intervention into the interior. Both the insulation layer and the cover strip are added from the outside, so it is possible to carry out the reconstruction during operation and without significant restriction of the building operation. The object of the CZ 285 490 patent is a fire wall made of internal and external gypsum boards, which are screwed on profile columns of sheet metal, the boards are provided with fiber reinforcement so that they have sufficient fire resistance as well as strength. International patent application WO 97/06942 (PV 1998-827) discloses a process for the production of profile material, in particular for the production of sash and blind window and door frames, comprising a mixture of recycled thermoplastic and plant fibers, the profile being solid and provided with a refining coating formed for example, of aluminum sheet, which may be coated, for example, with varnish.

The essence of the technical solution

The basis of the technical solution according to this utility model is a building panel of a sandwich arrangement comprising a frame of solid plastic profile, which is provided with a metal coating with an interrupted thermal bridge, on this frame is attached an exterior wall made of sheet metal or facade decoration board and flame retardant material, with inner insulation between the exterior wall and the interior wall.

The solid plastic profile material is preferably a recycled blend of polyethylene with polypropylene. The metal coating of the profile is made of aluminum. The aluminum sheet, preferably semi-hard, 0.8 to 1.5 mm thick, may also form the exterior wall of the building panel. In another preferred variant, the exterior wall may be a decorative facade panel based on a thermally hardened plastic resin, for example a TRESPA-VOLKERN panel having a thickness of 3 mm. The exterior wall sheet and possibly the metal coating of the plastic profile can be surface treated, for example with a polyester enamel coating.

-1 CZ 12825 Ul

The interior wall of the panel may advantageously be a vermiculite-based fire protection board, e.g.

a 16 mm thick TRENAMAT A board, or a gypsum board, eg a board

GKF 15 mm thick.

The inner insulation may be formed of polyurethane foam, polyisocyanate foam, non-flammable

TAREC-ECOPHEN foam or stone wool. Preferably, the inner insulation has a thickness of 60 mm and may be three-layer, the individual layers being glued together with a urethane-based adhesive which is wet-curing.

Advantages of such a panel include resistance to degeneration processes, in particular resistance to weathering, UV radiation and excellent thermal and acoustic insulation properties. The advantage is also that the fastening material is held in a solid, solid profile, ensuring perfect corrosion-resistant joint strength. Due to the dimensional characteristics, the panel according to the technical solution is suitable as an alternative in the renovation of the housing stock in panel houses.

BRIEF DESCRIPTION OF THE DRAWINGS

Giant. 1 is a plan view of a building panel according to the invention.

Giant. 2 is a side sectional view of a building panel according to the invention.

Giant. 3 schematically shows one possibility of forming and strengthening a frame of a solid plastic extension profile of the required dimensions.

Giant. 4 is a front view of a window and door building assembly with a building panel according to the present invention.

Examples of technical solution

Example 1

The basis of the sandwich panel construction of the lightweight window inserts (MTV) consists of a frame I of solid plastic profile, which is sheathed with 0.4 mm thick aluminum foil with an interrupted thermal bridge. Frame 1 material is polyethylene (Meeth Massiv system). The exterior wall 2 is made of semi-hard aluminum sheet (99.5% Al) with a thickness of 0.8 mm with a polyester baking varnish finish. This sheet is connected to the frame I by rivets 6. The inner insulation 4 consists of three layers, which are glued together with MOR-AD 336AS urethane glue, curing in a wet setting. The interior wall 3 of the panel consists of a GKF fire-resistant plasterboard of a thickness

15 mm. The MIV thus formed is connected to adjacent window building elements by screws. It is anchored into the sill opening in the upper and lower plane in the corners by metal anchors, so-called turbo screws. The sill profile 8 may also be part of the assembly in the lower plane.

Example 2

The frame 1 was formed in such a way that four parts of the required length at 45 ° were cut from the expanded solid plastic profile. The individual parts were correspondingly assembled and welded, each weld being reinforced at the corners with two screws 7. A decorative facade panel made of thermally cured TRESPA-VOLKERN resin 3 mm thick was fastened to the frame thus formed. The inner insulation 4 consisted of 60 mm thick ROCKWOOL CONROCK stone wool. As an interior wall 3, a 16 mm thick TRENAMAT A fire panel was used. This panel was routinely assembled with window and door building elements as shown in Figure 4.

MTV panels can be most often 600 to 1200 x 1560 mm.

Claims (9)

A sandwich structure building panel, comprising a solid plastic profile frame (1) having a metal coating interrupted by a thermal bridge, characterized in that the extruder wall (2) of the panel comprises a sheet or facade decorative panel and an interior 5, the wall (3) is formed by a plate of fire-resistant material, with an inner insulation (4) between the exterior wall (2) and the interior wall (3). Building panel according to claim 1, characterized in that the material of the solid plastic profile (1) is recycled polyethylene and polypropylene and the metal coating is made of aluminum. ío Building panel according to claims 1 and 2, characterized in that the extruder wall (2) of the panel is made of semi-hard aluminum sheet with a thickness of 0.8 to 1.5 mm. Building panel according to claims 1 to 3, characterized in that the exterior wall sheet (2) and optionally the metal covering of the plastic profile is provided with a polyester baking varnish. 15 Dec Building panel according to claims 1 and 2, characterized in that the extruder wall (2) is formed by a decorative facade panel based on thermally hardened plastic resin. Building panel according to claims 1 to 4, characterized in that the interior wall (3) is formed by a vermiculite-based fire protection board. Building panel according to claims 1 to 4, characterized in that the interior wall 20 (3) form a plasterboard. Building panel according to claims 1 to 6, characterized in that the inner insulation (4) is made of polyurethane foam, polyisocyanate foam, mineral wool or non-flammable foam. The building panel according to claims 1 to 7, characterized in that the inner insulation (4) 25 is a three-layer, the thickness of which is 60 mm and the individual layers are glued together with a urethane-based hot-curing adhesive.