Double Skin Sandwich Roof Panels

Double Skin Sandwich Roof Panels


The Double skin sandwich Roof Panels are made from pre-painted galvanized sheets and insulated with polyurethane foam. The Products thickness ranges from 30 mm to 100 mm. These décor Roof Panels are suitable for portal cabins, houses, villas, steel buildings, room partitioning, etc.

Double Skin Sandwich Roof Panels are coupled with the following unique features:

  • Excellent resistance to corrosion
  • Long-lasting and durable
  • Easy to dismantle when necessary
  • Does not require exterior and interior finishing
  • Aesthetic value for decor
  • available both in single skin or double skins

Technical Data:

Double Skin Sandwich Roof Panels Technical Data

General Details
Thickness of RPUF (mm) 40/50/70/100 mm
Thickness of RPUF Crest (mm) 30 mm
Thickness Range Facia Sheet (mm) 0.4mm to 0.6mm
Effective Width of the Panel (mm) 1000 mm
Length Range (mm) 200 mm to 1200 mm
Specular Glass @ 60 Deg
(Amount of light reflected from surface)
40 - 90 %
Pencil Hardness (First Pencil that does not scratch) 2 (HB Grade)
Scratch Resistance (Bare metal shall not be visible through scratch) 1500 Gms
Facia Prepainted Galvanised Steel (PPGS)
Protective Film With or With out Guard Film

Top Coat 5 Micon Primer and 20 to 25 Micron of Top coat
Back Coat 5 to 10 Micron of service coat
Zing Coat 90 to 120 grams per sqm

Physical and Mechanical Properties
Density 38 +/- 2 Kg per Cubic Mtr
Closed cell content 90 to 95 %
Thermal conductivity 0.02 W/m-K
Diemensional stability (48 Hrs)
Deg -25 0.01%
Deg + 38 & 90 % RH 0.01%
Deg + 100 0.04%
Water absorption (24 hrs) 0.02% of Volume @ 100 % RH
Fire resistance Self Extinguishing

Color Shades
White, Off White, Beige, Green, Light Green
Dark Green, Yellow, Red, Light Pink, Dark Pink
Blue, Dark Blue

Corrosion Resistance - FACIA
Salt spray - 5 % NaCl 500 Hrs Good
Humidity 1000 Hrs Good
Acid resistance - 5 % HCL 24 Hrs Good
Alkali Resistance - 5 % NaOH 24 Hrs Good
Boiling Water 1 Hrs Good

Dimensional Tolerance
Thickness (mm) 2 mm
Width (mm) 2 mm

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