Roofing Panels Metal

Master-C Roofing Panels

MASTER-C panels are structural roof panels composed of steel skins laminated
to a minimum 1.6 inch polyisocyanurate foam core (min 2.3 pcf density).

MASTER-C panels are specially designed for use in al types of roofs, both for industrial construction and for modular or commercial buildings. Installation is very simple, and provides total watertightness (roof slopes of over 1/2 :12).

Master-C Roofing Panels

MASTER-C panels have a tongue and groove jointing system with a steel cover
cap that hides and protects the fasteners and ensures the watertightness of the system.

External profile of the panel is a three-rib design, available in seven different thicknesses, with two different interior rib designs and a wide range of colours to meet customer needs.

Technical specifications

Master-C Roofing Panels Three Ribs

MASTER-C panels have a tongue and groove jointing system with a steel cover cap that hides and protects the fasteners and ensures the watertightness of the system.

External profile of the panel is a three-rib design, available in seven different thicknesses, with two different interior rib designs and a wide range of colours to meet customer needs.

Panel thickness 40, 50, 60, 80, 100, 120 mm.
1 9/16, 1 31/32, 2 3/8, 3 5/32, 3 15/16, 4 23/32 inch.
Cover Width 1.000 mm. (39 3/8”)
Length Up to 11.900 mm. (39 ft.)
Field of application Roofing
Outer face thickness: mm 0.5 / 0.6 / 0.7
Inner face thickness: GAUGE 26 / 24 / 22
Exterior face: G90 galvanized or AZ50 aluminium-zinc, coated steel in 26 GA and above
Interior face: G90 galvanized or AZ50 aluminium-zinc, coated steel in 26 GA and above
Coatings
(see section on Finishes):
  • Polyester 25 um (1 mil)
  • PVDF 25um / 35um (1 mil / 1.38 mils)
  • PU 55um (Granite® HDX/SDP 50) (2.16 mils)
  • Imitation wood (inner face)
  • PVC 120um (4.8mil) (foodsafe)
Outer ribbing Three ribs
Inner ribbing Standard / Flat
Core type Polyisocyanurate (PIR)
Core Density 40 kg/m³ (+/- 10%) (2.3 PCF)

Calculations according to EN14509, measuring the surface resistance according to horizontal flow and omitting the influence of the profiled faces. Losses in bolted connections must be calculated by the designer.

Master-C Roofing Panels Technical Specifications
Panel thickness Panel weight U-Value R-Value
mm inch PSF BTU/Hr ft2 0F Hr ft2 0F/BTU
40 1 9/16 2.23 0.090 11.06
50 1 31/32 2.31 0.073 13.74
60 2 3/8 2.40 0.061 16.45
80 3 5/32 2.56 0.046 21.84
100 3 15/16 2.72 0.037 27.20
120 4 23/32 2.89 0.031 32.55

FUNCTIONS AND BENEFITS OF MASTER-C PANELS

  • Efficient thermal insulation capacity
  • High mechanical strength
  • The fasteners are hidden and protected
  • Exceptional dimensional stability
  • Watertight against water vapor
  • Resistant to aggressive environments
  • A versatile material that allows any configuration
  • Quick to install and easy to maintain (easy to clean)
  • Easily removable and can be reused
  • Made-to measure, avoids waste
  • Made with recyclable materials

REACTION TO FIRE

Master Panels Reaction to Fire

Testing and approvals:

Master Panel roofing panels meet the most demanding requirements. We have large experience in producing insulated metal panels in our continuous production line and we have obtained the #FLapproval with reference #FL21699.

TEST TEST METHOD RESULTS
FIRE ASTM E 84 Flame spread index 20
Smoke developed index 300
Permeability ASTM E 2140 No water leaks while maintaining continuously 6” head of water for 6 h
Strength ASTM E 8 > 32 ksi steel
Wind Uplift ASTM E 1592
FM4471
FM Windstorm Classifi cation 1-27O: Min 1.6” panel installed at 1 ft span on min. 16 ga purlins
FM Windstorm Classifi cation 1-75: Min 1.6” panel installed at 4 ft span on min. 16 ga purlins
Panel Span
(ft)
Span Condition
Single Span Two Span 3 or more Spans
1 121.8 131.9 137.5
1.5 81.2 88.4 99.7
2 60.9 66.6 74.8
2.5 48.7 53.5 59.9
3 40.6 44.7 49.9
3.5 34.8 38.4 42.8
4 30.5 33.6 37.5

NOTES:
1. Allowable inward and outward loads are based on panel an connection strength and deflection limit of L/240.
2. Allowable loads are obtained from ASTM E1592 test an calculated with a factor of safety 2.0 for connection.
3. Panels will be fastened along each panel seam with (2) #12-24 × 4-1/4” HWH fasteners with 1/2” bonded sealing washer installed through 2-3/8” X
1-9/16” × 16 ga. bearing plate prior to installing the 24 ga. steel cap.
4. (1) #12-24 × 4-1/4” HWH fastener with 1/2” bonded sealing washer will be installed through 1-9/16” × 20 ga. bearing plate with sealing rubber along
the intermediate rib of each panel at each purling.
5. #12-24 × 1” HWH fasteners with 1/2” bonded sealing washers will be installed staggered 2.5 -ft o.c on either side of the seam cap.
6. The structural capacity of the panel supports are not considered and must be examined independently.

Colour chart

Roofing panel Colors Chart

Guide to select the right finish:

In order to choose the right prepainted finish for each use, the planner responsible for the design of the project must take into account both the incidence of UV rays and the exposure to corrosive environments of the building or project.

  • Corrosion resistance of the paint system
    To determine the corrosion resistance of a paint system, it is subjected to the salt spray test. This test evaluates the appearance of corrosion after a number of hours in a saline mist chamber. The results provide each paint scheme with an RC corrosion resistance value, from RC1 to RC5, with RC1 being the lowest value. This means that those RC3 rated paint schemes have shown their suitability for environments rated C3 or lower.
  • Resistance to UV radiation of the paint system
    To determine the UV resistance of a paint system, it is subjected to the QUV accelerated aging test. This test evaluates the loss of gloss and colour over time due to UV rays. The results provide each paint scheme with a UV resistance value RUV, from RUV1 to RUV4, with RUV1 being the lowest value.
  • Classification of environments
DESCRIPTION OF CORROSIVE CATEGORIES FOR EXTERNAL ENVIRONMENTS
C1 Very low.
C2 Low: Areas with low level of contamination. Mainly rural or industrial areas without incidence by sulphur dioxide.
C3 Moderate: Urban and industrial areas with low sulphur dioxide (SO2) pollution and coastal areas with low salinity (from 10 km to 20 km from the sea).
C4 High: Industrial areas with moderate contamination by sulphur dioxide (SO2) and coastal areas with moderate salinity (from 3 km to 10 km from the sea).
C5 I Very high: Industrial areas with very aggressive atmospheres and high contamination by sulphur dioxide (SO2)
C5 M Very high: Coastal and maritime areas with high salinity (from 1 km to 3 km from the sea).
Corrosive environment
category
Environment type
Rural Urban Industrial Marine
C1 - very low
C2 - low
C3 - moderate SO2 low (10-20 km)
C4 - high SO2 moderate (3-10 km)
C5 I - very high SO2 high
C5 M - very high (1-3 km)
DESCRIPTION OF THE CATEGORIES OF UV RESISTANCE FOR EXTERNAL ENVIRONMENTS
Area 1: Areas with low exposure to UV radiation or without special colour maintenance requirements.
Area 2: Areas with low exposure to UV radiation or without special colour maintenance requirements.
Area 3: Areas with moderate exposure to UV radiation.
Area 4: Areas with high exposure to UV radiation or with special colour maintenance requirements.
  • Choice of finishes for different environments
    Once the category of the environment is known, the person responsible for the design must decide on the painting system:
  1. The suitable paint system needs to be determined in terms of corrosion. The following table can be used as a guide.
    Master Panel Corrosion Resistance Category
  2. The suitable paint system in terms of UV radiation have to be determined. The following table can be used as a guide.
    Master Panel Category Resistance UV
  3. A suitable paint system should be chosen in terms of both corrosion resistance and UV resistance. The following cases can be used as a guide.
    Master Panel Corrosion Resistance & UV Category Choice

The data stated in the tables is informative and does not constitute a guarantee of the material. You should contact Masterpanel about any applications which require a guarantee for the steel in the panels.

Master Panel Guide to select the right finish
Master Guide to select the right finish

In order to provide you with information about this product, we offer you all the documentation concerning Master C / Roofing panels.

Master C Technical Specifications
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Technical specifications
Catalogue Master Frigo
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Catalogue
Quality Certificate Master Panel
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Quality certificate
Certificates of Reaction to Fire Master Panel
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Certificates of reaction to fire

BIM Master Frigo
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BIM
DWG Master Frigo
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DWG

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