The document discusses requirements and specifications for self-supported roofing systems. It states that the ideal site area should be at least 500 square meters in and around Bangalore, and 800 square meters elsewhere. It also outlines specifications for raw materials, roofing designs, accessories, advantages, applications, gutters, RCC requirements, and a workflow chart for self-supported roofing work.

2. Major constraints/Requirements
We should obtain the area of the site:
 Ideal size area in and around Bangalore(100km) should be minimum of
500 square meters.
 Apart from Bangalore in and around area, it should be minimum of 800
square meters.
Note: If the max size of the area is less than the size of the ideal size then we
should contact the person whom we are reporting.

3. Raw Material Specifications
Arch Roofings uses high grade, 350 Mpa yield strength, pre-painted
Galvalume steel as the basic raw material.
Base metal:
 Cold rolled structural quality steel in coil form
 Steel grade D: Min 350 Mpa Yield strength.
 Steel thickness 0.85mm to 1.6 mm (base metal).
 Available in different color like White, Blue, Orange, Red, Maroon etc..

4. Roofing Designs
 Elevated Base
 Multiple Bays
 Differential Heights Structures
 Differential Base Structures
 Half Arch
 Ground to Ground
 L section Roofs

5. Roofing Accessories
 Light Hangers
 Sky Lights
 Turbo Ventilators
 Anchor Fastener
 If span 22m then we use 2nos each side.
 If span is more than 22m then we use 3nos each side.

6. Arch Roofings Advantages
 Self supported structure without trusses, purlins or any ancillary support.
 Zero maintenance and 100% leak proof.
 Free from holes, nuts, bolts & overlaps.
 Resistant to damage and corrosion.
 On site fabrication and installation.
 Sturdy and durable ensuring a long lasting life and aesthetically appealing.
 The best grade of all steels as raw material

7. Applications
It is suitable for:
Warehouses, Manufacturing, Textiles, Food, Chemicals, Pharma, Plastics, Pa
ckaging, Electrical, Electronics, Engineering
industries, Logistics, Automobile workshops, Conventional
Centers, Auditoriums, Exhibition Halls etc…

8. Gutter Specifications
Types of Gutters:
 Center Gutter - Suitable if more than one building.
 Side Gutter - Suitable for all kinds of buildings.
Gutter Properties:
 Gutter concrete strength should be 20 N/MM Sq
 For Gutter dimensions refer the drawings.

9. Standard Requirement for RCC
 It should be perfect line and level through out the length.
 Minimum curing time of 15days.
 600mm projection of Beam at both the Gable Ends.
 Beam should be min 300mm wide and 450 mm in height.
 Center gutter Minimum width should be 750 mm.

10. Standard Requirement for RCC contd..
 Side/End gutter Minimum width should be 450mm
 Gutter must be kept open at both ends.
 Brick wall should not be constructed on the edge of gutter
 Slope should be 43.6 degree & maintained through out the length(holds
good for arch rise span/5).
 Slope angle/gutter should be made of HARD RCC without any type of
plastering or waterproofing.
 Slopping length should not be less than 207mm.
 There should be any projection of extra reinforcement/ RCC column on the
slope beam.

11. Self Supported Roofing work flowchart

12. Thank you

13. Trussless Roof For Halls And
Auditorium
• We hold expertise in providing
Trussless Roof for Halls and
Auditorium that is in
accordance with the latest
trends. It is light in weight and
well-known of its durability,
perfect finish & high
temperature resistance.
Trussless Roof offered by us
is in great demand amongst
our clients due to its following
quality attributes:
• Cost saving
• Maintenance free
• Faster installation
• 100% leak proof
• More space utilization

14. Trussless Roof For Industries
• We offer Trussless Roof, which
is specially designed for
industrial and commercial
roofing needs. These are made
using quality material and
reckoned for their high
strength, corrosion
resistance, low maintenance
cost & good aesthetics. Our
range of Trussless Roof can be
availed in varied dimensions &
specifications and has the
following advantages.
• Maintenance free
• More space utilization
• No spoilage due to bird
nuisance

15. Colour Trussless Roof
We render our clients with
Color Trussless Roof, which
is available in varied
specifications to suit their
varied needs. It is
manufactured using quality
material as per defined
industry standards. Our
range of Color Trussless
Roof is well-known for its
smooth surface, easy
installation, low
maintenance, heat
resistance, durability and is
offered at market leading
prices.

16. Trussless Roof For Mills
• We are instrumental in
providing Trussless Roof for
Mills, which is manufactured
using quality material. Available
in varied thicknesses, this
roofing system is light in
weight, resistant to corrosion
and possesses excellent finish.
Trussless Roof provided by us
is in compliance with set
industry standards and offers
value for money to the clients.
•

17. Self supported Roofings