Similar International Standards
ASTM D6222/D6222M-21ASTM International, USA
HighCurrent
Standard Specification for Atactic Polypropylene (APP) Modified Bituminous Sheet Materials Using Polyester Reinforcements
Covers factory-fabricated APP modified bituminous sheets with polyester reinforcement, analogous to IS 14777 Type A.
ASTM D6164/D6164M-20ASTM International, USA
HighCurrent
Standard Specification for Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
Covers factory-fabricated SBS modified bituminous sheets, a primary modifier type also covered by IS 14777.
EN 13707:2013CEN (European Committee for Standardization), Europe
HighCurrent
Flexible sheets for waterproofing - Reinforced bitumen sheets for roof waterproofing - Definitions and characteristics
Harmonized European standard for reinforced bituminous sheets for roof waterproofing, covering similar product types.
ASTM D6163/D6163M-20ASTM International, USA
HighCurrent
Standard Specification for Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
Covers SBS modified sheets with glass fiber reinforcement, analogous to IS 14777 Type B materials.
Key Differences
≠IS 14777 classifies membranes primarily by reinforcement type (Type A - Polyester, Type B - Glass Fibre) and thickness, whereas ASTM has separate standards for each combination of modifier (APP/SBS) and reinforcement.
≠IS 14777 mandates a specific water absorption test (max 1% by mass), which is not a standard requirement in ASTM or EN standards, which focus more on water vapour permeability and hydrostatic pressure resistance.
≠The Indian standard specifies a minimum softening point (e.g., ≥150°C for APP). In contrast, ASTM standards specify performance at high temperatures via a 'flow resistance' test at a set temperature (e.g., 121°C), rather than determining the compound's softening point.
≠EN 13707 operates on a system of 'declared values' by the manufacturer for many parameters (e.g., thickness, cold flexibility), which are then verified, offering more product variety. IS 14777 sets fixed minimum values for specific grades and types.
Key Similarities
≈All standards cover composite membranes consisting of a bitumen-based compound modified with thermoplastic polymers like APP (Atactic Polypropylene) or elastomers like SBS (Styrene-Butadiene-Styrene).
≈The use of non-woven spun-bond polyester fabric and glass fibre mats as the central reinforcement core is a common feature across IS, ASTM, and EN specifications.
≈All standards mandate a similar range of performance tests to ensure product quality, including tensile strength, elongation, tear resistance, and water impermeability (hydrostatic pressure).
≈The intended application for products under all these standards is the waterproofing of civil engineering structures, with a primary focus on roofing and, in many cases, below-grade structures like basements and foundations.