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Specifications

Single Skin Roofing

Single skin metal roof uses only 1 metal roof sheet and is designed to provide an economical solution, normally used in applications where performance demands are moderate. Insulation for single skin metal roof is installed below the metal roof sheet held by aluminum foil and steel wire mesh rolled over purlins.

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Double Skin Roofing

Double skin metal roof is a high-performance roofing system comprising of 2 metal roof sheets aligning parallel, One on top and the other at the bottom. The metal can be Steel, Aluminum, Colour Coated Galvnise, Galvalume, Colour Coated Galvalume.

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Product Specification

PRODUCTS	TOP METAL SHEET	INTERMEDIATE INSULATION	BOTTOM LAYER
Single Skin METAhybrid®	0.50 mm TCT Colour Coated Galvainse (PPGI) colour coated Galvalume (PPGL) Aluminium (AL)	6mm /12mm /19mm /24mm	Aluminum Foil
Double Skin METAhybrid®	0.50 mm TCT Colour Coated Galvainse (PPGI) colour coated Galvalume (PPGL) Aluminium (AL)	19mm /24mm /30mm /50mm	0.50 mm TCT Metal Sheet

Technical Data Sheet

FR XPE Crosslinked Closedcell Polyethylene Insulation Foam

No.	Properties	Standard	Technical Details
1	Density kg/cum Cell Structure Colour	JIS K 6767	30 ± 3 Kg/ M3 Closed cell Light Grey & also available In various customized colours
2	Services Temperature Range	Using Climate Chamber	-40 to 115º C
3	Ozone / UV & Weather / Chemical Resistance		Good / Excellent
4	Thermal Conductivity at 23/ 46 deg C	IS 3346/1980	0.0315 /0.038 W/m ºk
5	Thermal Conductivity at 40 deg C	IS 3346/1980	0.035 W/m ºk
6	Assessment of horizontal burning characteristics	BS 4735	0.72
7	Fire Retardant Test A) Flammability Class-S4 B) Smoke density Class SR2 C) Dropping Class ST2	DIN-5510 (pt-2), 54837	Self extinguishing Passed Non Dripping
8	Smoke density test	ASTM D 2843-99	Passed
9	Heavy metals for ROHS (Pollution)	Directive 2002/95/EC	Passed
10	HCFC/ CFC	US EPA 5021A(2014)	Free/Not Detected
11	Horizontal Flammability test for classifying materials 94 HBF.	UL-94	Passed
12	Horizontal Flammability test for classifying materials 94 HBF.	UL-94	Passed
13	Horizontal Flammability test for Paramount FR XPE	IS 15061-02	Passed
14	Fire Rating (Surface Spread of Flame- plain material)	BS 476 Part 7	Class-1
15	Fire Rating (Fire Propagation Index) – laminated with aluminum foil	BS 476 Part 6	Class-0
16	Oxygen Index	ASTM D 2863	27.7 %
17	Water Absorption	JIS K 6767 -1976	0.01gm/cm2
18	Water Vapour Transmission Rate	ASTM E-96 2016	0.040 gm/m2/Day
19	Insulation without aluminum foil Water Vapour Permeability Water vapour resistance factor (µ)	DIN EN ISO: 12572	Negligible 12805 (Plain-without foil)
20	Insulation with aluminum foil on one side. Water Vapour Permeability Water vapour resistance factor (µ)	DIN EN ISO: 12572	Negligible 17300 ( with AL foil)
21	Thermal Stability	BS 2972/1989	No visible signs of cracks and distortion.
22	Overall Migration Test	IS 9845-1998	Negligible effect of acids and alkalis
23	Fungal Resistance Test	ASTM G-21	Zero Rating (No growth observed)
24	Bacteria Resistance Test	ASTM G 22	No Bacteria growth observed
25	Mold Growth	IS 3144: 1992	No Mold growth observed
26	Compression Set% (A) At 25% deflection (B) At 50% deflection	JIS K 6767	24.7 % 42.1 %
27	Dimensional Changes % (A) Machine direction (B) Cross direction	JIS K 6767	(-)0.2 (-) 0.1
28	Tear Strength kg/cm2 (A) Machine direction (B) Cross direction	JIS K 6767	1.6 1.4
29	Compressive Strength, KPa (A) Machine direction (B) Cross direction Elongation%	ASTM D 3575	36.0 65.9
30	Tensile Strength kg/cm² (A) Machine direction (B) Cross direction Elongation% (A) Machine direction (B) Cross direction	JIS K 6767	2.4 2.2 113 100
31	90 deg peeling adhesion strength g/mm2	ISO 36 (2005)	747
32	Toxicity Index	NCD 1409	1.90 (Individual concentration of gases mostly either nil or well below the prescribed limit.
33	Smoke Density	ASTM D 2843-99	Passed
34	Flammability	NISO 3795	Passed

Our Products

RibSTRONG

Ribstrong is suitable for adaptation to any slop as designed. Strong and available in Aluminum, PPGI, PPGL up to 0.80 mm thickness.

BigSPAN

Bigspan has a bigger cover per meter square. reduce the roofing cost by reducing lap loss. it has a cover width of 1060mm with 1135mm actual width.

Steelzip^TM

Steelzip^TMStanding seam that covers the entire building with panels joined together with a double lock standing

Steeltile

Farmhouse and resort metal roofing sheets in traditional and classical tile patterns in metal give a Strong, attractive, elegant colour roof.

Steel Decking Sheets

Geometric Steels provide steel decking in crest height of 52mm, 76mm, and 102mm a desired destiny for decking sheets

Purlin

Geometric Steel Manufactures a complete range of structural C, U, Z and Hat section purlins in 1.00 mm to 3.00mm web 80 to 300mm.

Airflow Ridge Vent

Airflow Ridge vent is a unique ventilation product by Geometric Steels, installed at the peak and running along the length of the ridge line. Best for solar roof.

Smoke Vent

Prompt venting in case of fire is essential. A smoke vent is a device fitted on the roof that will allow smoke to escape providing a safer means of escape.