How to cut a sandwich panel. experienced builders give advice

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The main rule than to cut the sandwich panel. is the use of tools that produce only cold cutting, because overheating of metal surfaces can lead to damage to the protective polymer coating and corrosion.

To cut the panels is recommended to use circular saws and hand jigsaws. In addition you can do trimming with metal scissors, but only if you cut each metal surface separately. After each cutting of panels all joint surfaces and locks must be completely cleaned from metal shavings.

sandwich, panel, slopes

These boards are used in large-scale construction to build frame structures. Therefore, structurally insulated panels are introduced. They are made by means of 2 directional sawdust panels, between them, under the pressure, a layer of a dense insulator is glued or the foamed polyurethane is pumped.

In small construction, such blocks are used for structures based on an iron frame. Plates with metal spraying are needed in the form of a fence structure.

Slopes of sandwich panels. Cladding of window linings with sandwich panels

Window lining sandwich panels.

For the cladding of the window opening inside the house, different trim options are used. Not so long ago, the choice of finishing materials was limited to plasterboard and drywall. Today the panels for the slopes are considered one of the most common finishes.

Why do we need soffits?

Window jambs, when finished, hide installation joints and make the window look neat and complete the aesthetics of the interior

Advantages of sandwich panels over other types

Compared to other types of finishing sandwich panels have the following advantages:

  • Optimal insulation of cold walls of the opening from the microclimate in the room, which cannot be achieved if you make a window slope of gypsum plasterboard;
  • Lower noise level in the room, plastering the slopes, there is no heat and noise isolation;
  • Improvement of illumination due to reflective surfaces;
  • Low weight of the finishing material is less than 2 kg/m2 versus 10 kg/m2 of plasterboard with the same thickness;
  • Possibility to be firmly connected to the PVC-frame, which cannot be achieved by plastering the lining;
  • Impervious to temperature variations and direct sunlight, so such slopes are suitable not only for windows, but also for doors;
  • impossibility of cracking, while the cracking of the plastered window lining is not uncommon;
  • Absence of necessity for surface treatment with putty unlike plasterboard finishing (there are no wet finishing works);
  • carrying out installation work with a minimum amount of construction debris, which is impossible to imagine when using gypsum board or plaster;
  • the ability to use detergents to remove dirt, which makes it easier to care for the surface of the slopes.

Installing the slopes from the sandwich panels with their own hands

Hello all! After the installation of plastic windows it is necessary to take care of the quality finishing of the slopes, so they look aesthetically beautiful, not covered with mold, were easy to install and did not freeze in the cold. Sandwich panel linings have all of the above qualities. As mentioned above, to make their installation with their own hands is not very difficult, as you can see below.

How to cut a metal sandwich panel. Problems of cutting

Sandwich panel is a multi-layer construction for surface finish. Of the metal sandwich panels can be built resistant structures, because the material can withstand quite a high load. That is why it has gained extraordinary popularity in the construction industry. No wonder that because of the number of layers there are certain problems.

It is better to measure in advance and order the cut at the factory

To begin with, it is worth to understand how this material is arranged. Any type of sandwich panel consists of three layers. Two outer layers protect the inner layer of insulation from various risks. Because of the insulation, the ability to cut such panels is limited to only a few ways.

Cutting sandwich panels can only be made by several mechanical methods without the use of thermal elements. gas cutters, plasma torches and saws, which can very strongly heat the work surface. And all this because the insulation, which is located between the panels, very quickly ignited by open flame and tends to ignite at high temperatures (above 200 °). When cutting with any type of surface heating, the middle layer will flash, emitting acrid smoke. Therefore, it is absolutely not recommended to use any elements that can heat the surface or create an open fire. Such attempts to cut metal, will only destroy the special protective coatings of the panels.

Proceed to installation

Slopes with sandwich panels will be quite easy to do, if you adhere to the rules and sequence of actions. Even if there is no experience in finishing the slopes with their own hands, you should not be afraid of this work. Before you begin installation, you need to prepare the tools and materials, you will need:

  • Sandwich panel. which material to buy, you choose
  • Starting profile
  • F profile
  • Liquid plastic. used as desired
  • A tape measure and a knife
  • Screwdriver with screws, an electric screwdriver and a drill. the latter are probably in every home.

Slopes of the sandwich panels in a panel house

I have already said that the installation should be done at least a day after installing new windows. With the tape measure you need to make measurements and cut panels for the side and upper slopes. Remove unnecessary pieces of foam with a knife and begin to install the starting P profile, using screws for fasteners. Screw them to a gap of 10-15 cm. Do not forget that the first fixing the top profile, and then the side profiles should be tightly joined with the upper. Next, begin installing sandwich panel slopes, it is inserted into the grooves of the profile. Following the same pattern, we start with the upper slope.

  • First. at the top and bottom we put pieces of starter profile into the vertical bar and then the side panels are inserted into these slots.
  • The second. simply mount the panel with the window sill and the upper slope, then use liquid plastic to close the gap.

When this stage is completed, it remains to give the slopes a finished look. To do this, use a f profile, it must be fixed to the edges of the sandwich sheet. For additional insulation, the voids between the sandwich panel and the wall are filled with assembly foam. this process does not cause any inconvenience, as it is very easy to dismantle the profile. After filling the gaps the panel is returned to its place.

sandwich, panel, slopes

Sandwich panel installation. Recommendations for use of the panels

Sandwich panels can be fixed horizontally, which is most often practiced, and vertically. In the first case, the installation begins from the foundation of the building, in the second. from the corner of the structure.

Vertical installation of the material is generally used for constructions up to 6 m high. It is not possible to combine the two installation methods.

A few important requirements when working with laminated material.

  • Unloading is performed one package at a time using a crane or forklift.
  • The packs must be placed on a flat surface (do not install them on top of each other).
  • Panels are installed near the work site for convenience.

Installation of panels to the frame or substrate is carried out using special self-tapping screws made of hardened steel. Fasteners should have a sealing washer. Type of hardware is determined by the type of supporting structure and its thickness. It can be made of concrete, wood, brick or metal.

Before installing the panels on a metal or wooden base is required to pre-drill holes for mounting, but when using self-drilling screws this step is not necessary. The length of the fasteners depends on the thickness of the panel and varies from 85 to 235 mm. The most often used parts with a diameter of 5.5 mm.

In order to fix the material to the concrete, the preliminary arrangement of holes is mandatory. Both in panels and in the base. Fasten the products by installing dowels.

  • From the edges of the material fasteners should be at a distance of more than 5 cm.
  • Installation of the hardware must be made strictly perpendicular to the outer layer of the panel.
  • An important aspect that greatly affects the quality of installation is the proper tightening of fasteners. Self-tapping screws with a sealing washer must be screwed into full contact with the base. Excessive screwing should be avoided, which over time can lead to leakage of the connection. How to screw self-tapping screws
  • Protective film must be removed from some parts before installation: locks, fasteners. Complete removal of the protective coating should be carried out immediately after the completion of installation work.

Clamps are needed for installation to support the panels until they are fully clamped. To cut the material, you can use a saw (circular or band saw), jigsaw, electric scissors for metal. Angle grinder in this case is not used, as the temperature effects arising from the work of this tool, leads to damage to the material.

for inexpensive sandwich panels

Before you begin work, you need to check the ends of the products. The insulation material must not protrude. Otherwise this defect must be corrected. On the upper part of the plinth must be applied waterproofing.

angle grinder (angle grinder)

Not every angle grinder is suitable for cutting panels. It should be small, so you can easily hold it with one hand. It is impossible to use a large angle grinder.

In the angle grinder is set the thinnest disk 0.8 mm, 1 mm or a maximum of 1.2 mm. The disc used is a regular one for metal.

Angle grinder gives a strikingly even cut, without nicks and, as they say, the people “snot.

The angle grinder does not tear the plastic. No matter what part of the panel you’re cutting or what weather conditions. Both in frost and in heat. Using an angle grinder, you get a straight cut.

With an angle grinder from the wall panel can be cut literally millimeters.

The disadvantages include the fact that it is heavier than a jigsaw and a knife. But the biggest disadvantage. The angle grinder generates a lot of fine dust. It gets in all the right places.

Step-by-step installation

Affordable price, lightweight material, ease of installation and ease of operation have allowed the use of sandwich panels is very widely in the decoration of window openings.

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