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IS 7452:2009 is the Indian Standard (BIS) for steel rolling shutters and rolling grills. This standard specifies the requirements for materials, fabrication, dimensions, and performance of steel rolling shutters and rolling grills. It covers various types like push-pull and gear-operated, detailing construction aspects from laths and barrels to guides and locking arrangements, primarily for external or internal openings in buildings.
Specifies requirements for materials, fabrication, and installation of steel rolling shutters and grills.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Ensure guide channels are installed perfectly plumb and parallel to prevent shutter jamming and premature wear.
! Always specify lath thickness based on both the opening width (as per Table 1) and the anticipated wind pressure for the building's location to prevent failure.
! Regular lubrication of guides, springs, and gearing mechanisms is crucial for smooth operation and extending the shutter's service life.
Covers performance requirements for rolling shutters but is performance-based, unlike the prescriptive IS code.
ANSI/DASMA 209-2022DASMA - Door & Access Systems Manufacturers Association (USA)
HighCurrent
Standard for Commercial and Residential Coiling Type Doors and Grilles
Directly addresses materials, construction, and performance of commercial rolling doors and grilles.
JIS A 4716:2018JSA - Japanese Standards Association (Japan)
HighCurrent
Rolling shutters for buildings
Specifies requirements for the construction, performance, and testing of rolling shutters and grilles.
BS 7384-2:1991BSI - British Standards Institution (UK)
LowWithdrawn
Rolling shutters, roller grilles and shutters of the overhead slatted blind type - Part 2: Guide to specification
Provided guidance on specification before being replaced by the harmonized European performance standard.
Key Differences
≠IS 7452 is a prescriptive standard, dictating specific material thicknesses and dimensions (e.g., lath thickness based on shutter width). In contrast, EN 13241 is a performance-based standard, requiring the finished product to meet certain performance classes (e.g., wind load, thermal resistance) without mandating specific construction details.
≠International standards like EN 13241 and those from DASMA (referencing UL 325) have stringent mandatory safety requirements for motorized doors, including entrapment protection sensors (photo-eyes, safety edges) and force limitation. IS 7452 has very basic safety provisions, mainly focusing on structural integrity and emergency manual operation.
≠Corrosion protection requirements differ. IS 7452 specifies a minimum zinc coating of 120 g/m² for galvanized steel laths, whereas US standards (DASMA/ASTM) commonly require higher grades like G60 (180 g/m²) or G90 (275 g/m²) for better durability.
≠Wind load assessment in IS 7452 is simplified, offering a table of lath thicknesses for given shutter widths. EN 13241 requires products to be tested and classified into specific Wind Load Classes (0-5), providing a more accurate and site-specific performance rating.
Key Similarities
≈All standards cover the same fundamental components of a rolling shutter system, including the interlocking laths (slats), guide channels, barrel assembly, bottom bar, and protective hood/box.
≈The primary material specified for construction across all standards is steel, with provisions for galvanizing or other coatings for corrosion resistance. Each standard references its respective national material specifications (e.g., IS, ASTM, EN, JIS).
≈All standards recognize and provide guidelines for various methods of operation, including manual (push-pull, chain hoist) and power-operated (motorized) systems.
≈The general scope of all compared standards is to define the requirements for vertically coiling shutters and grilles used to secure openings in commercial, industrial, and residential buildings.
Parameter Comparison
Parameter
IS Value
International
Source
Minimum Lath Thickness (up to 7.5m width)
0.90 mm
Not prescriptively defined; must meet wind load performance class. Typically 0.7 mm (24 ga) or more.
EN 13241 / ANSI/DASMA 209
Minimum Guide Channel Thickness
3.15 mm
Varies by design and wind load; typically 2.5 mm to 5.0 mm (12 to 7 gauge).
ANSI/DASMA 209
Corrosion Protection (Zinc Coating on Laths)
120 g/m² minimum (as per IS 277)
Typically G60 (180 g/m²) or G90 (275 g/m²) (as per ASTM A653).
ANSI/DASMA 209
Motorized Safety Standard
General provisions; suggests clutch and manual override.
Mandatory compliance with specific safety standards like UL 325, requiring entrapment protection systems.
ANSI/DASMA 209
Wind Load Design Basis
Prescriptive table of lath thickness vs. shutter width, with reference to IS 875 (Part 3).
Performance-based classification (e.g., Wind Class 1-5) determined by physical testing against differential air pressure.
EN 13241
Barrel Shaft Deflection
Shall not exceed 1/360 of the span.
Generally specified as not to exceed 0.03 inches per foot of span (~1/400 of span).
ANSI/DASMA 209
Fire Resistance
Not covered. Addressed by a separate standard, IS 17822.
Treated as a specific performance characteristic, covered by separate standards (e.g., EN 16034) used in conjunction with the main product standard.
EN 13241
⚠ Verify details from original standards before use
Key Values6
Quick Reference Values
Minimum lath thickness for push-pull shutter up to 3m width0.90 mm
Minimum lath thickness for gear-operated shutter up to 7.5m width1.20 mm
Maximum permissible deflection under wind loadspan / 325
Minimum yield strength for cold rolled steel sheets (laths)240 MPa
Minimum yield strength for structural steel sections (guides)250 MPa
Maximum recommended area for push-pull type shutter10 m²
Tables & Referenced Sections
Key Tables
Table 1 - Thickness of Interlocked Laths for Various Widths of Opening
Table 2 - Dimensions for Guide Channels
Table 3 - Dimensions for Bottom Lock Rail
Table 4 - Recommended Guage of Steel for Hoods
Key Clauses
Clause 3 - Materials
Clause 4 - Laths
Clause 5 - Barrel (Shaft)
Clause 6 - Guide Channels
Clause 10 - Performance Requirement for Wind Pressure Resistance
What is the minimum lath thickness for a standard push-pull shutter?+
0.90 mm for openings up to 3000 mm wide, or 1.20 mm for openings between 3000 mm and 4500 mm (Table 1).
When is a gear-operated shutter necessary?+
It is generally recommended for shutters exceeding 10 m² in area to ensure ease of operation (Clause 1.3).
What steel is specified for the shutter laths?+
Cold-rolled low carbon steel sheets or strips conforming to IS 513 or IS 1079 (Clause 3.1).
What is the standard paint finish required?+
A coat of red oxide zinc chromate primer followed by two finishing coats of synthetic enamel paint, unless specified otherwise by the purchaser (Clause 13).