Products

Features

  • Trapezoidal external sheet “ROOF 4”
  • Mineral Wool core material
  • For pitched roofs starting from 4°
  • Standard fire class A2-S1-D0
  • Up to 120 minutes fire insulation and integrity (EI120)
  • Cover width 1000 mm
  • Thicknesses from 50 mm to 200 mm
  • Insulation value down to U = 0,20 W/m2 .k

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Properties

Thickness [D]Overall Thickness [Dt]WeightU-value
[mm][mm][kg/m2][W/m2.k]
508317,10,77
609318,10,66
8011320,10,50
10013322,10,41
12015324,10,35
15018327,10,28
18021330,10,24
20023332,10,21
The mentioned insulation values in this table are based on calculations according NEN-EN14509:2013

Fire

PropertyStandardCertification StandardResult*Field of application
Reaction to FireEN ISO 11925-2:2010 ignitability EN 13501-1:2017 reaction to fireEN 13501-1:2007 Fire classification of construction products and building elements - Part 1A2-S1-D0All thicknesses
Fire resistanceEN1365-2: determining the fire resistance of roof constructionsEN 13501-2:2007 Fire classification of construction products and building elements - Part 2EI30> 60 mm thickness
EI60> 80 mm thickness
EI90> 100 mm thickness
EI120> 120 mm thickness
*European fire tests project running, certification on request

Environmental

For further information on environmental issues please contact the sales department of REX Panels & Profiles.

Air Leakage

When correctly installed the air leakage of the REX SDW ROOF 4 MW sandwich panels is approx. 3,5 m3/hour/m2 @ 50 pa. Under normal environmental conditions this is tight enough to prevent condensation or unacceptable air leakage. If necessary (i.e. coldstore applications) the airtightness can be improved by gun applied sealing the panel to panel joints using silicon mastic.

Acoustic

Indicative octave band sound Insulation Index (R) in [dB] / [Hz]
631252505001000200040008000
-17203021395156
Sandwich MW panels have a weighted sound reduction of approx. 30 dB(A) (depending on thickness, example at 100 mm thickness)

Measurements

Available lengths

Standard lengths2500 to 13600 mm
Longer lengths*13600 to 15000 mm
Shorter lengths*Below 2500 mm
*Non-standard lengths are available on request and subjected to a surcharge

Panel End Cut Back

Standard Cut Back Eaves100 mm
Standard Cut Back Endlap200 to 300 mm
Minimum Cut Back2 mm
Maximum Cut Back350 mm

Orientation

Sandwich roof panels can be installed from left to right or from right to left. REX SDW ROOF 4 MW panels are standard produced and supplied with a sidelap on the right (see illustration). If a different installation direction is required this can be mentioned during the order process.

Tolerances

LengthL ≤ 3000 mm-5 mm+5 mm
L ≥ 3000 mm-10 mm+10 mm
ThicknessD ≤ 100 mm-2 mm+2 mm
D ≥ 100 mm-2%D+2%D
Cover width-2 mm+2 mm
Squareness-6 mm+6 mm
Other product- and materialtolerances according EN14509:2013

Materials

Core material

The REX SDW ROOF 4 MW sandwich panels are produced with a mineral fibre (MW) core material with a density of 40 kg/m3.

External sheet

The profiled external sheet is standard available in the following materials and coating systems:

Coating*SteelThicknesses**
0,630,75
Polyester 25 muGalvanised Steel quality S280 GD or better
Plastisol 200 muGalvanised Steel quality S280 GD or better
REX PUR 60 muGalvanised Steel quality S280 GD or better

*Available colours according standard colourchart which is available on request
**Other coatings / thicknesses on request available

= standard available

Internal sheet

The profiled internal sheet is standard available in the following materials and coating systems:

Coating*SteelThickness**
0,5
Polyester IC 15 muGalvanised Steel quality S250 GD or better
Polyester 25 muGalvanised Steel quality S250 GD or better
Foodsafe 150 muGalvanised Steel quality S250 GD or better
Colourfarm 35 muGalvanised Steel quality S250 GD or better

*Available colours according standard colourchart which is available on request
**Other coatings / thicknesses on request available

= standard available

Sealants

The REX SDW ROOF 4 MW sandwich panel is fitted with a soft semi-closed PVC foam sealant. This sealant is factory apllied on the overlap of the steel external sheet (side lap). With a compression rate of 30% a sufficiently airtight joint will be created.

Quality and Guarantee

Quality

The REX SDW ROOF 4 MW product is CE marked according EN14509:2013. The quality of our products is under FPC (Factory Production Control) continuesly monitored in our own testlaboratory. These procedures are secured under ISO9001.

Certification

The REX SDW ROOF 4 MW panels can be supplied including the following certificates / quality marks:

Guarantee

All products from REX Panels & Profiles come with a standard 10-year product warranty. An extended warranty is available on request under certain conditions. Some coating systems offer an additional (longer) guarantee on the durability of the external and / or internal sheet. For more information or the warranty conditions you can consult the website or contact our sales department.

Packaging and transport

Packaging

The REX SDW DAK 4 MW sandwich panels are stacked interleaved on OSB boards and PS blocks and fully wrapped in foil to create
solid and manageable bundles. On request the panels can be stacked with all profiled external sheets up or down.

Number of panels per pack
Core thickness506080100120150180200
Stacked interleaved16141088643
Stacked crowns up or down1311987643

Transport

All deliveries are made via standard road transport to the construction site (maximum standard length 13600 mm). The trucks must be unloaded by the customer with suitable lifting equipment. Transport of longer lengths (up to 15000 mm) and / or self-unloaders is also possible on request.