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STEEL CROWN
Geometric Steels Roll Forming Pvt. Ltd.
Passive Roof Ventilation โ€” Four Engineered Configurations

One Ventilation System.
Every Industrial Roofline.

The Geometric Steels Airflow Ridge Vent โ€” Hat, Monitor, Onion, and Apex types โ€” delivers continuous passive ventilation with zero power and zero moving parts. Specified across warehousing, textiles, automotive, heavy manufacturing, food processing, pharma, and EPC projects nationwide.

FREE TECHNICAL CONSULTATION โ€” SPECIFICATION SUPPORT FOR NEW BUILDS & RETROFITS
WAREHOUSING &
LOGISTICS
TEXTILE &
SPINNING MILLS
AUTOMOBILE &
AUTO-COMPONENT
CEMENT, STEEL &
HEAVY MFG
FOOD PROCESSING
& FMCG
PHARMA &
CHEMICAL
EPC &
MULTI-SECTOR
EXHAUST INTAKE INTAKE
Shared Operating Principle

The Physics Behind Every Ridge Vent

All four types share the same mechanism: continuous natural stack-effect airflow. Hot air rises inside the shed and is drawn up and out through the ridge cavity, pulling fresh air in through lower openings โ€” constant circulation with no motors, no electricity, and nothing to fail.

  • 01 No power, no moving parts, no noise โ€” nothing to run, nothing to fail
  • 02 Eliminates foam-closure failures common in improvised systems
  • 03 Clean roofline โ€” hidden underneath the louvered ridge cap
  • 04 More economical than turbo ventilators over system lifetime
  • 05 Zero organized market competition โ€” engineered design unique to Geometric Steels
Product Range โ€” Full Specification

Four Configurations. Interchangeable by Design.

The right type for a given project depends on required exhaust volume, roof pitch, and architectural preference โ€” resolved through technical consultation rather than a fixed sector default.

PRODUCT 01
Hat-Type Airflow Ridge Vent
100โ€“150mm Throat Range
Hat-Type Ridge Vent

Dual louvered exhausts with a Galvalume plate perpendicular to the roof slope, in a hat-type cavity ridge. Carries the largest ridge cavity size in the range for maximum exhaust performance along the full ridge length.

STD. LENGTH5.00 meters
THROAT SIZE100mm to 150mm
BASE MATERIALHot-dip galvanized CRCA steel, min. 240 MPa yield strength, IS 513
COATINGZinc per IS 277; chemical conversion + 5โ€“7 micron epoxy primer
FINISH20-micron RMP (DFT) exposed / 5-micron (DFT) unexposed
THICKNESS0.50mm TCT
  • Discreet roofline โ€” small throat option suits architectural priorities
  • Continuous ventilation along entire ridge, not fixed points
  • Hidden underneath louvered ridge cap
Ask about Hat-Type specification โ†’
PRODUCT 02
Monitor-Type Airflow Ridge Vent
150โ€“200mm Throat Range
Monitor-Type Ridge Vent

Dual vertical louvered exhaust plates on a raised profile above the roofline, enhancing natural draft and cross-ventilation. Engineered for easy installation on both new and existing roofing, regardless of profile design.

STD. LENGTH3.00 meters (up to 5m available)
THROAT SIZE150mm to 200mm
BASE MATERIALHot-dip galvanized CRCA steel, min. 240 MPa yield strength, IS 513
COATINGZinc per IS 277; chemical conversion + 5โ€“7 micron epoxy primer
COMPATIBILITYStanding seam or trapezoidal roofing systems
  • Raised profile enhances natural draft vs. flush ridge designs
  • Retrofits onto existing roofing as well as new construction
  • 5-meter lengths available, reducing ridge joints
Ask about Monitor-Type specification โ†’
PRODUCT 03
Onion-Type Airflow Ridge Vent
300โ€“600mm Throat Range
Onion Vent Installed on Roof

Outer band panels, internal ridge, and end caps in 0.50mm color-coated steel on a Bare Galvalume AZ 150 (550 MPa) frame. GI bird mesh fitted at exhaust opening. Largest dome cavity size in the range for optimal exhaust performance.

STD. LENGTH3.00 meters
THROAT SIZE300mm / 450mm / 600mm
FRAMEBare Galvalume AZ 150, 550 MPa strength
PROTECTIONGI bird mesh at exhaust opening
ROOF PITCHSuitable up to 6:12
SUPPORT (600mm)Intermediate steel frame every 1.00m
  • Largest heat accumulation capacity in the range
  • Continuous drainage slot in outer wind band, both sides
  • Zero operating and maintenance cost long-term
Ask about Onion-Type specification โ†’
PRODUCT 04
Apex-Type Airflow Ridge Vent
900โ€“3000mm Throat Range
Apex-Type Ridge Vent

Built for large-span industrial roofing requiring high-capacity exhaust. Assembled on-site with an intermediate steel welded frame at regular intervals, plus an internal gutter outlet system for rainwater management.

THROAT SIZE900mm to 3000mm, customizable on-site
PANEL MATERIALColor-coated Galvalume, 0.50 TCT, AZ 150, 550 MPa
PROTECTIONGI bird mesh at exhaust opening
ASSEMBLYModular, on-site โ€” flexible alignment with roof structure
DRAINAGEInternal gutter outlet system integrated
  • Highest-capacity throat opening in the range (up to 3000mm)
  • Purpose-built for large-span sheds where exhaust volume is priority
  • Zero organized competition at this throat capacity
Ask about Apex-Type specification โ†’
Applications by Sector

Engineered for Your Specific Environment

Large scale logistics warehouse

01Warehousing, Logistics & Cold Storage

Large-span roofs accumulate significant heat load, straining cooling systems and raising energy costs. Continuous ridge ventilation reduces this load passively, working alongside climate control rather than against it.

Heavy manufacturing steel plant

02Cement, Steel & Heavy Manufacturing

Heavy manufacturing demands hardware that withstands continuous thermal and structural stress. Built from 240 MPa+ yield strength steel for sustained industrial-grade use.

Clean food processing facility

03Food Processing & FMCG

Facilities require ventilation compliant with hygiene standards, resistant to pest or water ingress. IS 513 / IS 277 compliant construction with sealed, bird-mesh-protected designs.

Automobile manufacturing plant

04Automobile & Component Manufacturing

Welding, painting, and assembly operations generate substantial process heat. Passive ridge ventilation reduces ambient floor temperature without adding to plant power consumption.

Not a Catalog Supplier

Engineered Ventilation Systems, Not Off-the-Shelf Fittings.

Geometric Steels designs and manufactures its own Ridge Vent range rather than distributing generic fittings โ€” resulting in a product family with no organized competition in several configurations.

A

ISO / CE / IAF Certified

Manufacturing quality verified against international standards.

B

Four Configurations

Covering every throat-size and roof-pitch requirement.

C

Full-System Capability

Ventilation, Purlins, and Roofing Sheets from one manufacturer.

D

EPC Engineering Support

Direct technical support for contractors and specifiers.

E

Pan-India Experience

Supply and installation across industrial sectors nationwide.

Get Started

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Let's Specify the Right Ventilation System for Your Project.

Four engineered configurations. One point of contact. Free technical consultation.