Sandwich panels

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Sandwich panels Paneltech

Sandwich panel comprises of two steel sheets facings and an insulation core.

Panel facings are made of galvanized steel sheet, coated with polyester paint, thickness from 0,4 to 0,6 [mm] made in accordance with norm PN-EN 10346:2009. The steel we use to produce our panels are delivered by biggest world steel concerns.

The core of the panel can be made of polyisocyanurate foam (PIR) with density of 40 kg/m³, mineral wool with density of 100 kg/m³ or 85 kg/m³ (LITE) or expanded polystyrene (EPS) produced by our own factory.

Sandwich panels types

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Wall sandwich panels

Wall sandwich panel is used to construct external walls and internal partitions in the single- or multiple-span shell structure. They can be mounted both vertically and horizontally. The wall sandwich panel is available in two types of connection – visible (S) and hidden joint (SU), where the link is hidden in a suitably profiled longitudinal edge of the panel. Our offer also includes the PWPIR-CH sandwich panels is intended for warehouse structures where internal temperatures reach minus 25°C.

ROOF SANDWICH PANELS

Roof sandwich panel is applied as roofs and roof covers. As in the case of wall panels, roof panels are available in several types of core: PUR, PIR, mineral wool and polystyrene. Unlike the wall panel, due to high stresses, the roof sandwich panel is made only on the outside with a trapezoidal profile, which ensures the appropriate stiffness of the panel.

Sandwich panel PWPIR-D

Roof sandwich panel with PIR core

Sandwich panel PWS-D

Roof sandwich panel with EPS core

Sandwich panel PWW-D

Roof sandwich panel with mineral wool core

Sandwich panel PWPUR-D/PWPIR-D agro

Roof panel with PUR/PIR core for agricultural facilities

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advantages of sandwich panels

Sandwich panels are solutions that ensure high quality, lightness and durability of building partitions. The advantages of self-supporting Paneltech sandwich panels are:

high mechanical strength,
very good thermal insulation,
high resistance of wall and roof panel joints
driving rain,
high tightness of the joints of wall and roof panels
air and water vapor penetration,
easy and quick assembly,
proportionally low cost of the investment carried out in
compared to classic construction methods,
high aesthetics and variety of colors and textures
facing.

Application of sandwich panels

Paneltech sandwich panels are used in construction, among others:

industrial production and commercial halls,
warehouses,
office and service complexes,
containers,
agricultural and food industry facilities,
cold and frosty,
roofing of objects.

Panel cores

The core of sandwich panels can be:

made of rigid polyisocyanurate (PIR) foam with a density of 40 kg/m³ or 35 kg/m³ (LITE),
made of mineral wool with a density of 100 kg/m³ and 85 kg/m³ (LITE),
made of polystyrene with a density of 12.5 kg/m³ produced by our own production.

Polyurethane, polyisocyanurate, mineral wool sandwich panels - manufacturer Paneltech

Panel joints

The joints of the sandwich panels are shaped in a way that guarantees high tightness, ease of installation and the possibility of introducing additional sealing mass during installation, preventing gas infiltration and ensuring watertightness. Paneltech wall panels are produced with two types of hoints – standard with a visible joint and with a hidden joint.

technical data of sandwich panels

Thickness of wall sandwich panels: from 40 mm to 200 mm,
Thickness of roof sandwich panels: from 40 mm to 200 mm,
Modular width of wall sandwich panels: 1130 mm (optionally 1000 mm or 1050 mm),
Modular width of roof sandwich panels: 1050 mm,
Heat transfer coefficient Uc – 0.22 [W/m²K] for a standard 10 cm (100 mm) PIR-core wall panel up to 0.14 [W/m²K] for a 16 cm (160 mm) PIR-core roof panel,
Fire resistance – from EI 60 for PWW-S LITE wall panels to REI 120 for PWW-D mineral wool core roof panels, and even EI 240 for 180 and 200 mm thick PWW-S mineral wool wall panel.

The profiling of sandwich panel is intended to emphasize aesthetic values as well as increase stiffness. Depending on the type of panel, various variants of profiling are available on both sides. The depth of profiling is approximately 1 mm. The exception is the external facing of the roof panels, which has an individual trapezoidal T profile, approximately 2 mm deep.

AVAILABLE EXTERNAL PROFILATION:

L – linear

MF – microwave

ML – microlinear

MR – microgroove

G – smooth

T – trapezoidal

C – Carbon

AVAILABLE INTERNAL PROFILATION:

L – linear

R – groove

G – smooth

External facings of Paneltech sandwich panels are available in a wide range of colors consistent with the RAL color system. The offer of SP 25 polyester linings is divided into standard, typical and untypical colors.

standard colors

RAL 9002

RAL 9010

RAL 9001

RAL 9006

RAL 1015

RAL 7035

typical colors

RAL 1002

RAL 1021

RAL 3000

RAL 3011

RAL 5010

RAL 5012

RAL 6029

RAL 7016

RAL 7024

RAL 7040

RAL 8017

RAL 9007

untypical colors

RAL 1018

RAL 8004

food safe

RAL 6011

RAL 6005

RAL 2011

TABLE OF COATING PROPERTIES

NAME	TYPE	THICKNESS [μm]	CORROSION RESISTANCE	APPLICATION	SURFACE FINISHING²⁾
SP25	polyester	25	C1-C3, A1	common	smooth
PU	polyurethane	35-60	conditionally C5¹⁾, A4¹⁾	environment with increased corrosion class	smooth with shine
FARM	polyester	35	conditionally C3, A1	from inside of buildings (no UV-resistance), agricultural buildings, high resistance to ammonia	mooth
FOOD SAFE	PVC laminate	120	conditionally C5¹⁾, A5¹⁾	from inside of buildings (no UV-resistance), premises with controlled environmental parameters: cold stores, clean rooms, e.g. meat processing plants	matt / grainy
special	polyvinyl chloride	200	conditionally C5¹⁾, A5¹⁾	environment with high corrosion resistance class	scintilla finishing
special	PVDF / polyurethane	40-65	conditionally C5¹⁾, A5¹⁾	environment with high corrosion resistance class, high colour fastness	smooth

1) organic coating is selected on the basis of its durability and application conditions. Coating selection is carried out through environmental assessment based on an environmental questionnaire completed by the Client, approved by the steel manufacturer and Paneltech

2)feature not defined by standard.